test: add fake NVML backed for GPU dev/testing by vprashar2929 · Pull Request #2420 · sustainable-computing-io/kepler

vprashar2929 · 2026-02-15T17:02:06Z

This commit adds a FakeNVMLBackend that implements the NVMLBackend/NVMLDevice interfaces, enabling GPU feature development and e2e testing without real NVIDIA hardware.

Add FakeNVMLBackend and FakeNVMLDevice in nvidia package
Add WithNVMLBackend() collector option for backend injection
Add dev.fake-gpu-meter config (enabled, deviceCount, sharingMode)
Wire fake backend in createGPUMeters() when config is enabled
Add bare-metal e2e GPU tests (metrics presence, labels, conservation)
Add fake-gpu-meter config to all deployment manifests
Update e2e testing docs with gpu_test.go

github-actions · 2026-02-15T17:02:34Z

⚠️ Config changes detected in this PR
Please make sure that the config changes are updated in the following places as part of this PR:

docs/user/configuration.md

codecov · 2026-02-15T17:04:03Z

Codecov Report

❌ Patch coverage is 75.86207% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.64%. Comparing base (508fdf9) to head (fd8649e).
⚠️ Report is 60 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/device/gpu/nvidia/fake_backend.go	72.36%	19 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2420      +/-   ##
==========================================
- Coverage   91.91%   91.64%   -0.27%     
==========================================
  Files          54       55       +1     
  Lines        5365     5449      +84     
==========================================
+ Hits         4931     4994      +63     
- Misses        313      332      +19     
- Partials      121      123       +2

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github-actions · 2026-02-15T17:06:48Z

📊 Profiling reports are ready to be viewed

⚠️ Variability in pprof CPU and Memory profiles
When comparing pprof profiles of Kepler versions, expect variability in CPU and memory. Focus only on significant, consistent differences.

💻 CPU Comparison with base Kepler

File: kepler
Build ID: 64ca144403c7949c83ae25f01a72a81693b883f8
Type: cpu
Time: 2026-02-15 17:03:47 UTC
Duration: 120s, Total samples = 3.84s ( 3.20%)
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for 0, 0% of 3.84s total
      flat  flat%   sum%        cum   cum%
         0     0%     0%      0.09s  2.34%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
         0     0%     0%     -0.09s  2.34%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
     0.08s  2.08%  2.08%      0.08s  2.08%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).CPUUsageRatio
         0     0%  2.08%      0.08s  2.08%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh.func3
         0     0%  2.08%      0.08s  2.08%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshNode
         0     0%  2.08%     -0.07s  1.82%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%  2.08%     -0.06s  1.56%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%  2.08%     -0.06s  1.56%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%  2.08%     -0.06s  1.56%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
         0     0%  2.08%     -0.05s  1.30%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
    -0.01s  0.26%  1.82%     -0.05s  1.30%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
     0.01s  0.26%  2.08%      0.05s  1.30%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
     0.04s  1.04%  3.12%      0.04s  1.04%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  3.12%      0.04s  1.04%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
         0     0%  3.12%      0.03s  0.78%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
    -0.03s  0.78%  2.34%     -0.03s  0.78%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
    -0.03s  0.78%  1.56%     -0.03s  0.78%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).AllProcs
         0     0%  1.56%      0.02s  0.52%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
         0     0%  1.56%      0.02s  0.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
         0     0%  1.56%      0.02s  0.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  1.56%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/device.(*AggregatedZone).Energy
    -0.01s  0.26%  1.30%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/device.Energy.String
     0.01s  0.26%  1.56%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/device.sysfsRaplZone.Energy
         0     0%  1.56%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PlatformCollector).Collect
     0.01s  0.26%  1.82%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectGPUMetrics
    -0.01s  0.26%  1.56%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
    -0.01s  0.26%  1.30%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateContainerPower
    -0.01s  0.26%  1.04%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePodPower
    -0.01s  0.26%  0.78%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot.func1
         0     0%  0.78%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
    -0.01s  0.26%  0.52%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).StringID (inline)
         0     0%  0.52%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
         0     0%  0.52%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).ReadAll
     0.01s  0.26%  0.78%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).readPowerSubsystem
         0     0%  0.78%      0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*Service).Power
    -0.01s  0.26%  0.52%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Cgroups
    -0.01s  0.26%  0.26%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CmdLine
         0     0%  0.26%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
         0     0%  0.26%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func2
         0     0%  0.26%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
         0     0%  0.26%     -0.01s  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromProc
    -0.01s  0.26%     0%     -0.01s  0.26%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)

💾 Memory Comparison with base Kepler (Inuse)

File: kepler
Build ID: 64ca144403c7949c83ae25f01a72a81693b883f8
Type: inuse_space
Time: 2026-02-15 17:05:47 UTC
Duration: 120.02s, Total samples = 10147.57kB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for -20.56kB, 0.2% of 10147.57kB total
      flat  flat%   sum%        cum   cum%
         0     0%     0% -1033.19kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%     0% -1033.19kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
         0     0%     0% -1033.19kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%     0% -1033.19kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%     0% -1033.19kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
         0     0%     0% -1033.08kB 10.18%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
 1024.05kB 10.09% 10.09%  1024.05kB 10.09%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
         0     0% 10.09%  -528.17kB  5.20%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
 -528.17kB  5.20%  4.89%  -528.17kB  5.20%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromCgroupPaths
         0     0%  4.89%  -528.17kB  5.20%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
         0     0%  4.89%  -521.05kB  5.13%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
 -521.05kB  5.13%  0.25%  -521.05kB  5.13%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  0.25%   516.64kB  5.09%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func2
  516.64kB  5.09%  4.84%   516.64kB  5.09%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromCmdLine
         0     0%  4.84%   516.64kB  5.09%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromProc
         0     0%  4.84%  -512.14kB  5.05%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%  4.84%  -512.14kB  5.05%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
 -512.14kB  5.05%   0.2%  -512.14kB  5.05%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
  512.14kB  5.05%  4.84%   512.14kB  5.05%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)
         0     0%  4.84%   503.11kB  4.96%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
 -512.02kB  5.05%   0.2%     0.12kB 0.0012%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%   0.2%     0.12kB 0.0012%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone

💾 Memory Comparison with base Kepler (Alloc)

File: kepler
Build ID: 64ca144403c7949c83ae25f01a72a81693b883f8
Type: alloc_space
Time: 2026-02-15 17:05:47 UTC
Duration: 120.02s, Total samples = 191.56MB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for 6.14MB, 3.21% of 191.56MB total
Dropped 4 nodes (cum <= 0.96MB)
      flat  flat%   sum%        cum   cum%
         0     0%     0%     5.97MB  3.11%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
       5MB  2.61%  2.61%        5MB  2.61%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  2.61%        5MB  2.61%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
         0     0%  2.61%        5MB  2.61%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
         0     0%  2.61%    -4.99MB  2.60%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
         0     0%  2.61%     4.97MB  2.60%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%  2.61%     4.97MB  2.60%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%  2.61%     4.97MB  2.60%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%  2.61%     4.97MB  2.60%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
   -4.50MB  2.35%  0.26%    -4.50MB  2.35%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
         0     0%  0.26%     2.96MB  1.55%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
    2.64MB  1.38%  1.64%     2.64MB  1.38%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*realProcFS).CPUInfo
   -0.50MB  0.26%  1.38%     2.46MB  1.28%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
   -0.50MB  0.26%  1.11%     2.14MB  1.12%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect
    2.04MB  1.07%  2.18%     2.04MB  1.07%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).CPUUsageRatio
         0     0%  2.18%     2.04MB  1.07%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh.func3
         0     0%  2.18%     2.04MB  1.07%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshNode
   -2.04MB  1.06%  1.12%    -2.04MB  1.06%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).AllProcs
    0.50MB  0.26%  1.38%     1.50MB  0.79%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
    1.01MB  0.53%  1.91%     1.01MB  0.53%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateNodePower
         0     0%  1.91%    -0.99MB  0.52%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
   -0.52MB  0.27%  1.64%    -0.52MB  0.27%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromCgroupPaths
         0     0%  1.64%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PlatformCollector).Collect
         0     0%  1.64%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).ReadAll
    0.50MB  0.26%  1.90%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).readPowerSubsystem
         0     0%  1.90%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*Service).Power
         0     0%  1.90%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func2
         0     0%  1.90%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromProc
    0.50MB  0.26%  2.16%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Cgroups
    0.50MB  0.26%  2.42%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CmdLine
    0.50MB  0.26%  2.69%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
    0.50MB  0.26%  2.95%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%  2.95%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
         0     0%  2.95%    -0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.newProcess
    0.50MB  0.26%  3.21%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).StringID (inline)
         0     0%  3.21%    -0.49MB  0.26%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot

⬇️ Download the Profiling artifacts from the Actions Summary page

📦 Artifact name: profile-artifacts-2420

🔧 Or use GitHub CLI to download artifacts:

gh run download 22039576676 -n profile-artifacts-2420

github-actions · 2026-02-15T17:23:02Z

📊 Profiling reports are ready to be viewed

⚠️ Variability in pprof CPU and Memory profiles
When comparing pprof profiles of Kepler versions, expect variability in CPU and memory. Focus only on significant, consistent differences.

💻 CPU Comparison with base Kepler

File: kepler
Build ID: b1c1acf3467f9851601e9fae3c15856121f43ffa
Type: cpu
Time: 2026-02-15 17:20:07 UTC
Duration: 120s, Total samples = 4.01s ( 3.34%)
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for -0.01s, 0.25% of 4.01s total
Dropped 1 node (cum <= 0.02s)
      flat  flat%   sum%        cum   cum%
    -0.12s  2.99%  2.99%     -0.12s  2.99%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  2.99%     -0.10s  2.49%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
         0     0%  2.99%     -0.10s  2.49%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  2.99%     -0.10s  2.49%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
         0     0%  2.99%     -0.10s  2.49%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
    -0.01s  0.25%  3.24%     -0.09s  2.24%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%  3.24%     -0.08s  2.00%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%  3.24%     -0.08s  2.00%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%  3.24%     -0.08s  2.00%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
         0     0%  3.24%      0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%  3.24%     -0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
     0.01s  0.25%  2.99%      0.05s  1.25%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PlatformCollector).Collect
         0     0%  2.99%     -0.05s  1.25%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
     0.05s  1.25%  1.75%      0.05s  1.25%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
         0     0%  1.75%     -0.05s  1.25%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh.func3
    -0.01s  0.25%  2.00%     -0.05s  1.25%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshNode
         0     0%  2.00%     -0.04s     1%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
     0.01s  0.25%  1.75%      0.04s     1%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*Service).Power
    -0.04s     1%  2.74%     -0.04s     1%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).CPUUsageRatio
         0     0%  2.74%     -0.03s  0.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
     0.01s  0.25%  2.49%      0.03s  0.75%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).ReadAll
     0.01s  0.25%  2.24%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
     0.02s   0.5%  1.75%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).readPowerSubsystem
     0.02s   0.5%  1.25%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Comm
     0.02s   0.5%  0.75%      0.02s   0.5%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)
     0.01s  0.25%   0.5%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect
    -0.01s  0.25%  0.75%     -0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
     0.01s  0.25%   0.5%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*TerminatedResourceTracker[go.shape.*uint8]).Add
         0     0%   0.5%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func2
     0.01s  0.25%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromCmdLine
         0     0%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromProc

💾 Memory Comparison with base Kepler (Inuse)

File: kepler
Build ID: b1c1acf3467f9851601e9fae3c15856121f43ffa
Type: inuse_space
Time: 2026-02-15 17:22:07 UTC
Duration: 120.02s, Total samples = 12724.19kB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for 1542.46kB, 12.12% of 12724.19kB total
      flat  flat%   sum%        cum   cum%
         0     0%     0%  2070.64kB 16.27%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%     0%  1046.48kB  8.22%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
  512.02kB  4.02%  4.02%  1024.16kB  8.05%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%  4.02%  1024.16kB  8.05%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
         0     0%  4.02%  -528.17kB  4.15%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
 -528.17kB  4.15%  0.13%  -528.17kB  4.15%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromCgroupPaths
         0     0%  0.13%  -528.17kB  4.15%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
  525.43kB  4.13%  4.00%   525.43kB  4.13%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
         0     0%  4.00%   521.05kB  4.09%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
  521.05kB  4.09%  8.10%   521.05kB  4.09%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  8.10%   512.14kB  4.02%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
  512.14kB  4.02% 12.12%   512.14kB  4.02%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)
 -512.02kB  4.02%  8.10%  -512.02kB  4.02%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
  512.01kB  4.02% 12.12%   512.01kB  4.02%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect

💾 Memory Comparison with base Kepler (Alloc)

File: kepler
Build ID: b1c1acf3467f9851601e9fae3c15856121f43ffa
Type: alloc_space
Time: 2026-02-15 17:22:07 UTC
Duration: 120.02s, Total samples = 204994.28kB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for 14161.07kB, 6.91% of 204994.28kB total
Dropped 2 nodes (cum <= 1024.97kB)
      flat  flat%   sum%        cum   cum%
         0     0%     0% 12296.61kB  6.00%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
         0     0%     0%  7683.62kB  3.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
         0     0%     0%  7681.16kB  3.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
 7681.16kB  3.75%  3.75%  7681.16kB  3.75%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
         0     0%  3.75%  7662.65kB  3.74%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%  3.75%  7662.65kB  3.74%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%  3.75%  7662.65kB  3.74%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%  3.75%  7662.65kB  3.74%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
 6144.27kB  3.00%  6.74%  6144.27kB  3.00%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
  525.43kB  0.26%  7.00%  3597.98kB  1.76%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
 3585.32kB  1.75%  8.75%  3585.32kB  1.75%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  8.75%  3585.32kB  1.75%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
         0     0%  8.75%  3585.32kB  1.75%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
         0     0%  8.75%  3577.02kB  1.74%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
 1536.13kB  0.75%  9.50%  3072.55kB  1.50%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%  9.50% -2575.32kB  1.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
-3598.68kB  1.76%  7.74% -2574.65kB  1.26%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).AllProcs
   -0.02kB 1.1e-05%  7.74% -2262.06kB  1.10%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect
-2262.04kB  1.10%  6.64% -2262.04kB  1.10%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*realProcFS).CPUInfo
 1536.42kB  0.75%  7.39%  1536.42kB  0.75%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)
         0     0%  7.39% -1042.17kB  0.51%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
         0     0%  7.39% -1042.17kB  0.51%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
-1028.01kB   0.5%  6.89% -1028.01kB   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Cgroups
 1024.03kB   0.5%  7.39%  1024.03kB   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.WrapProc (inline)
         0     0%  7.39%   528.17kB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func2
  528.17kB  0.26%  7.65%   528.17kB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromCmdLine
         0     0%  7.65%   528.17kB  0.26%  github.com/sustainable-computing-io/kepler/internal/resource.vmInfoFromProc
 -512.31kB  0.25%  7.40%  -512.31kB  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateNodePower
 -512.23kB  0.25%  7.15%   498.44kB  0.24%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
   -4.63kB 0.0023%  7.14%   493.81kB  0.24%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
 -481.93kB  0.24%  6.91%  -481.93kB  0.24%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).CPUUsageRatio
         0     0%  6.91%  -481.93kB  0.24%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh.func3
         0     0%  6.91%  -481.93kB  0.24%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshNode

⬇️ Download the Profiling artifacts from the Actions Summary page

📦 Artifact name: profile-artifacts-2420

🔧 Or use GitHub CLI to download artifacts:

gh run download 22039657547 -n profile-artifacts-2420

This commit adds a FakeNVMLBackend that implements the NVMLBackend/NVMLDevice interfaces, enabling GPU feature development and e2e testing without real NVIDIA hardware. - Add FakeNVMLBackend and FakeNVMLDevice in nvidia package - Add WithNVMLBackend() collector option for backend injection - Add dev.fake-gpu-meter config (enabled, deviceCount, sharingMode) - Wire fake backend in createGPUMeters() when config is enabled - Add bare-metal e2e GPU tests (metrics presence, labels, conservation) - Add fake-gpu-meter config to all deployment manifests - Update e2e testing docs with gpu_test.go Signed-off-by: vprashar2929 <vibhu.sharma2929@gmail.com>

github-actions · 2026-02-16T05:25:58Z

📊 Profiling reports are ready to be viewed

⚠️ Variability in pprof CPU and Memory profiles
When comparing pprof profiles of Kepler versions, expect variability in CPU and memory. Focus only on significant, consistent differences.

💻 CPU Comparison with base Kepler

File: kepler
Build ID: 8cf875623da14a20b3426e7132f7ca709424b4c5
Type: cpu
Time: 2026-02-16 05:23:01 UTC
Duration: 120s, Total samples = 4s ( 3.33%)
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for -0.01s, 0.25% of 4s total
Dropped 1 node (cum <= 0.02s)
      flat  flat%   sum%        cum   cum%
         0     0%     0%     -0.15s  3.75%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
         0     0%     0%     -0.10s  2.50%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
         0     0%     0%     -0.10s  2.50%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
         0     0%     0%     -0.07s  1.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%     0%     -0.07s  1.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%     0%     -0.07s  1.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%     0%     -0.07s  1.75%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
         0     0%     0%      0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
    -0.06s  1.50%  1.50%     -0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  1.50%     -0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
         0     0%  1.50%     -0.06s  1.50%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  1.50%     -0.04s  1.00%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
         0     0%  1.50%     -0.04s  1.00%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
         0     0%  1.50%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PlatformCollector).Collect
         0     0%  1.50%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect
     0.02s   0.5%  1.00%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*realProcFS).CPUInfo
         0     0%  1.00%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
         0     0%  1.00%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).ReadAll
     0.02s   0.5%   0.5%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).readPowerSubsystem
         0     0%   0.5%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*Service).Power
    -0.04s  1.00%  1.50%     -0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).AllProcs
     0.02s   0.5%  1.00%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Comm
     0.02s   0.5%   0.5%      0.02s   0.5%  github.com/sustainable-computing-io/kepler/internal/resource.WrapProc (inline)
     0.01s  0.25%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectPodMetrics
    -0.01s  0.25%   0.5%     -0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
    -0.01s  0.25%  0.75%     -0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection
     0.01s  0.25%   0.5%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
     0.01s  0.25%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).Cgroups
         0     0%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
         0     0%  0.25%      0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
         0     0%  0.25%     -0.01s  0.25%  github.com/sustainable-computing-io/kepler/internal/resource.newProcess

💾 Memory Comparison with base Kepler (Inuse)

File: kepler
Build ID: 8cf875623da14a20b3426e7132f7ca709424b4c5
Type: inuse_space
Time: 2026-02-16 05:25:01 UTC
Duration: 120.02s, Total samples = 10592.28kB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for -21.45kB, 0.2% of 10592.28kB total
      flat  flat%   sum%        cum   cum%
         0     0%     0%  2048.29kB 19.34%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
         0     0%     0%  1536.12kB 14.50%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
         0     0%     0% -1028.70kB  9.71%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
 -512.03kB  4.83%  4.83% -1024.91kB  9.68%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect
         0     0%  4.83%  1024.20kB  9.67%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%  4.83%  1024.20kB  9.67%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
 1024.09kB  9.67%  4.83%  1024.09kB  9.67%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%  4.83%  1024.09kB  9.67%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
         0     0%  4.83%  -528.17kB  4.99%  github.com/sustainable-computing-io/kepler/internal/resource.computeTypeInfoFromProc.func1
 -528.17kB  4.99%  0.15%  -528.17kB  4.99%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromCgroupPaths
         0     0%  0.15%  -528.17kB  4.99%  github.com/sustainable-computing-io/kepler/internal/resource.containerInfoFromProc
 -516.64kB  4.88%  5.03%  -516.64kB  4.88%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
 -512.88kB  4.84%  9.87%  -512.88kB  4.84%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*realProcFS).CPUInfo
         0     0%  9.87%   512.14kB  4.84%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
  512.14kB  4.84%  5.04%   512.14kB  4.84%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
  512.03kB  4.83%   0.2%   512.03kB  4.83%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
         0     0%   0.2%    -4.50kB 0.042%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%   0.2%    -4.50kB 0.042%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%   0.2%    -4.50kB 0.042%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%   0.2%    -4.50kB 0.042%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1

💾 Memory Comparison with base Kepler (Alloc)

File: kepler
Build ID: 8cf875623da14a20b3426e7132f7ca709424b4c5
Type: alloc_space
Time: 2026-02-16 05:25:01 UTC
Duration: 120.02s, Total samples = 197.42MB 
Active filters:
   show=github.com/sustainable-computing-io
Showing nodes accounting for 3.54MB, 1.79% of 197.42MB total
Dropped 3 nodes (cum <= 0.99MB)
      flat  flat%   sum%        cum   cum%
   -1.01MB  0.51%  0.51%    -7.03MB  3.56%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh
    6.51MB  3.30%  2.79%     6.51MB  3.30%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).collectProcessMetrics
         0     0%  2.79%    -6.04MB  3.06%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePower
         0     0%  2.79%    -6.04MB  3.06%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).refreshSnapshot
         0     0%  2.79%    -6.04MB  3.06%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh
         0     0%  2.79%    -6.04MB  3.06%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).synchronizedPowerRefresh.func1
         0     0%  2.79%    -6.02MB  3.05%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshProcesses
         0     0%  2.79%     3.50MB  1.77%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*gpuInfoCollector).Collect
         0     0%  2.79%    -3.02MB  1.53%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).scheduleNextCollection.func1
   -3.02MB  1.53%  1.26%    -3.02MB  1.53%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).AllProcs
         0     0%  1.26%    -3.02MB  1.53%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).ensureFreshData
      -3MB  1.52%  0.26%       -3MB  1.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*procWrapper).CPUTime
         0     0%  0.26%       -3MB  1.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).updateProcessCache
         0     0%  0.26%       -3MB  1.52%  github.com/sustainable-computing-io/kepler/internal/resource.populateProcessFields
       3MB  1.52%  1.26%        2MB  1.01%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Process).Clone (inline)
         0     0%  1.26%    -1.52MB  0.77%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).Snapshot
         0     0%  1.26%     1.50MB  0.76%  github.com/sustainable-computing-io/kepler/internal/monitor.(*Snapshot).Clone
         0     0%  1.26%     1.49MB  0.75%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PowerCollector).Collect
    1.02MB  0.52%  1.77%     1.02MB  0.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*procFSReader).CPUUsageRatio
         0     0%  1.77%     1.02MB  0.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).Refresh.func3
         0     0%  1.77%     1.02MB  0.52%  github.com/sustainable-computing-io/kepler/internal/resource.(*resourceInformer).refreshNode
      -1MB  0.51%  1.27%       -1MB  0.51%  maps.Copy[go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.map[github.com/sustainable-computing-io/kepler/internal/device.EnergyZone]github.com/sustainable-computing-io/kepler/internal/monitor.Usage,go.shape.interface { Energy ; Index int; MaxEnergy github.com/sustainable-computing-io/kepler/internal/device.Energy; Name string; Path string; Power  },go.shape.struct { EnergyTotal github.com/sustainable-computing-io/kepler/internal/device.Energy; Power github.com/sustainable-computing-io/kepler/internal/device.Power }] (inline)
   -0.96MB  0.48%  0.78%    -0.96MB  0.48%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*realProcFS).CPUInfo
         0     0%  0.78%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*PlatformCollector).Collect
         0     0%  0.78%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).ReadAll
    0.50MB  0.26%  1.04%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*PowerReader).readPowerSubsystem
         0     0%  1.04%     0.50MB  0.26%  github.com/sustainable-computing-io/kepler/internal/platform/redfish.(*Service).Power
         0     0%  1.04%     0.50MB  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculatePodPower
    0.50MB  0.25%  1.29%     0.50MB  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*TerminatedResourceTracker[go.shape.*uint8]).Clear (inline)
    0.50MB  0.25%  1.54%     0.50MB  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.newProcess (inline)
   -0.51MB  0.26%  1.28%     0.49MB  0.25%  github.com/sustainable-computing-io/kepler/internal/monitor.(*PowerMonitor).calculateProcessPower
       1MB  0.51%  1.79%     0.04MB 0.023%  github.com/sustainable-computing-io/kepler/internal/exporter/prometheus/collector.(*cpuInfoCollector).Collect

⬇️ Download the Profiling artifacts from the Actions Summary page

📦 Artifact name: profile-artifacts-2420

🔧 Or use GitHub CLI to download artifacts:

gh run download 22051110203 -n profile-artifacts-2420

github-actions Bot added the test Adding or updating tests label Feb 15, 2026

vprashar2929 force-pushed the fake-gpu branch from 8fa969d to 9dc0f33 Compare February 15, 2026 17:07

vprashar2929 requested review from KaiyiLiu1234 and vimalk78 February 15, 2026 17:08

vprashar2929 force-pushed the fake-gpu branch from 9dc0f33 to fd8649e Compare February 16, 2026 05:21

nikimanoledaki mentioned this pull request Apr 13, 2026

[reboot]: Support GPU Power reporting / NVidia #2081

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test: add fake NVML backed for GPU dev/testing#2420

test: add fake NVML backed for GPU dev/testing#2420
vprashar2929 wants to merge 1 commit intosustainable-computing-io:mainfrom
vprashar2929:fake-gpu

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