Use FreezeLock for CStore

[Zoxc]

This uses FreezeLock to protect the CStore. FreezeReadGuard and FreezeWriteGuard are changed to support a map operation.

r? @oli-obk

[oli-obk]

@bors try @rust-timer queue

[bors]

⌛ Trying commit 1d8fdc0 with merge 73e9d0d...

[bors]

☀️ Try build successful - checks-actions
Build commit: 73e9d0d (73e9d0dfe548ffe86e60eb613f202da7c7574438)

[rust-timer]

Finished benchmarking commit (73e9d0d): comparison URL.

Overall result: no relevant changes - no action needed

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-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.4%	[-3.4%, -1.5%]	2
Improvements ✅ (secondary)	-3.0%	[-3.9%, -2.0%]	2
All ❌✅ (primary)	-2.4%	[-3.4%, -1.5%]	2

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.0%	[-3.0%, -3.0%]	1
All ❌✅ (primary)	-	-	0

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 626.843s -> 629.492s (0.42%)
Artifact size: 317.92 MiB -> 317.99 MiB (0.02%)

[oli-obk]

@bors r+ rollup

[bors]

📌 Commit 1d8fdc0 has been approved by oli-obk

It is now in the queue for this repository.

[bors]

⌛ Testing commit 1d8fdc0 with merge 6645a93...

[bors]

☀️ Test successful - checks-actions
Approved by: oli-obk
Pushing 6645a93 to master...

[rust-timer]

Finished benchmarking commit (6645a93): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 629.364s -> 630.365s (0.16%)
Artifact size: 317.94 MiB -> 318.00 MiB (0.02%)