[EXPERIMENT] inline fmt::write for Arguments without placeholders

[joboet]

No description provided.

[joboet]

@bors try @rust-timer queue

[rust-bors]

☀️ Try build successful (CI)
Build commit: 13766b5 (13766b51a2eeec4c7c9f28c33f91faf119fe8aa9, parent: 7ad4e69ad585d8ff214f7b42d01f1959eda08f40)

[rust-timer]

Finished benchmarking commit (13766b5): comparison URL.

Overall result: ❌✅ regressions and improvements - please read the text below

Benchmarking this pull request means it may be perf-sensitive – we'll automatically label it not fit for rolling up. You can override this, but we strongly advise not to, due to possible changes in compiler perf.

Next Steps: If you can justify the regressions found in this try perf run, please do so in sufficient writing along with @rustbot label: +perf-regression-triaged. If not, please fix the regressions and do another perf run. If its results are neutral or positive, the label will be automatically removed.

@bors rollup=never
@rustbot label: -S-waiting-on-perf +perf-regression

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.7%	[0.4%, 1.2%]	3
Regressions ❌ (secondary)	0.3%	[0.1%, 0.5%]	8
Improvements ✅ (primary)	-0.4%	[-0.9%, -0.2%]	4
Improvements ✅ (secondary)	-0.2%	[-0.2%, -0.1%]	6
All ❌✅ (primary)	0.1%	[-0.9%, 1.2%]	7

Max RSS (memory usage)

Results (primary -0.4%, secondary -3.3%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	2.6%	[2.3%, 2.8%]	2
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-3.3%	[-5.6%, -1.0%]	2
Improvements ✅ (secondary)	-3.3%	[-4.3%, -1.3%]	3
All ❌✅ (primary)	-0.4%	[-5.6%, 2.8%]	4

Cycles

Results (secondary 4.9%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	11.2%	[9.9%, 13.6%]	5
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-5.4%	[-6.9%, -3.7%]	3
All ❌✅ (primary)	-	-	0

Binary size

Results (primary -0.1%, secondary 0.1%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	0.2%	[0.0%, 0.6%]	14
Regressions ❌ (secondary)	0.3%	[0.0%, 0.3%]	57
Improvements ✅ (primary)	-0.3%	[-1.3%, -0.0%]	16
Improvements ✅ (secondary)	-0.6%	[-4.5%, -0.0%]	13
All ❌✅ (primary)	-0.1%	[-1.3%, 0.6%]	30

Bootstrap: 480.915s -> 484.228s (0.69%)
Artifact size: 398.15 MiB -> 396.09 MiB (-0.52%)

[camsteffen]

Did you mean to use as_statically_known_str?