Enable tracing for all queries

[oli-obk]

This allows you to log everything within a specific query, e.g.

env RUSTC_LOG=[mir_borrowck]

dumping all borrowck queries may be a bit verbose, so you can also restrict it to just an item of your choice:

env RUSTC_LOG=[mir_borrowck{key=\.\*name_of_item\.\*}]

the regex .* in the key name are because the key is a debug printed DefId, so you'd get all kinds of things like hashes in there. The tracing logs will show you the key, so you can restrict it further if you want.

[rust-highfive]

r? @michaelwoerister

(rust-highfive has picked a reviewer for you, use r? to override)

[oli-obk]

@bors try @rust-timer queue

[rust-timer]

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

[bors]

⌛ Trying commit b4a8846fc3f07345f46068b75c34338528defb2d with merge 1d59938c45561174f235b85ff117546120d6fd4f...

[bors]

☀️ Try build successful - checks-actions
Build commit: 1d59938c45561174f235b85ff117546120d6fd4f (1d59938c45561174f235b85ff117546120d6fd4f)

[rust-timer]

Queued 1d59938c45561174f235b85ff117546120d6fd4f with parent 21d613b, future comparison URL.

[rust-timer]

Finished benchmarking commit (1d59938c45561174f235b85ff117546120d6fd4f): comparison url.

Summary:

• Primary benchmarks: no relevant changes found
• Secondary benchmarks: 😿 relevant regressions found

	Regressions 😿 (primary)	Regressions 😿 (secondary)	Improvements 🎉 (primary)	Improvements 🎉 (secondary)	All 😿 🎉 (primary)
count1	0	8	0	0	0
mean2	N/A	0.4%	N/A	N/A	N/A
max	N/A	0.6%	N/A	N/A	N/A

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

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

Footnotes

1. number of relevant changes ↩

2. the arithmetic mean of the percent change ↩

[michaelwoerister]

That's pretty neat! There's a small performance regression in some secondary benchmarks. Not sure if we should take those seriously? Does #[instrument] do anything when debug-assertions are disabled?

[oli-obk]

That's pretty neat! There's a small performance regression in some secondary benchmarks. Not sure if we should take those seriously? Does #[instrument] do anything when debug-assertions are disabled?

no, it's statically compiled out, I was just worried I screwed some of that up, thus the perf run

[michaelwoerister]

Feel free to r=me.

[oli-obk]

@bors r=michaelwoerister

[bors]

📌 Commit 0d5a738 has been approved by michaelwoerister

[oli-obk]

@bors rollup