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| author | shaw young <58664393+shawbyoung@users.noreply.github.com> | 2024-06-17 13:27:56 -0700 |
|---|---|---|
| committer | shawbyoung <shawbyoung@gmail.com> | 2024-06-17 15:14:35 -0700 |
| commit | 68fc8dffe4669fed1f7eb88e6770509505f9960a (patch) | |
| tree | 830bc57368944cde8d5b2133680f50727792e440 /bolt/test | |
| parent | 6c17f1cabdee3399feceb478921a8369bde18b16 (diff) | |
| download | llvm-68fc8dffe4669fed1f7eb88e6770509505f9960a.zip llvm-68fc8dffe4669fed1f7eb88e6770509505f9960a.tar.gz llvm-68fc8dffe4669fed1f7eb88e6770509505f9960a.tar.bz2 | |
[BOLT] Drop high discrepancy profiles in matching (#95156)
Summary: Functions with high discrepancy
(measured by matched function blocks)
can be ignored with an added command line
argument for better performance.
Test Plan: Added
stale-matching-min-matched-block.test
---------
Co-authored-by: Amir Ayupov <aaupov@fb.com>
Diffstat (limited to 'bolt/test')
| -rw-r--r-- | bolt/test/X86/Inputs/blarge_profile_stale_low_matched_blocks.yaml | 57 | ||||
| -rw-r--r-- | bolt/test/X86/stale-matching-min-matched-block.test | 10 |
2 files changed, 67 insertions, 0 deletions
diff --git a/bolt/test/X86/Inputs/blarge_profile_stale_low_matched_blocks.yaml b/bolt/test/X86/Inputs/blarge_profile_stale_low_matched_blocks.yaml new file mode 100644 index 0000000..785e239 --- /dev/null +++ b/bolt/test/X86/Inputs/blarge_profile_stale_low_matched_blocks.yaml @@ -0,0 +1,57 @@ +--- +header: + profile-version: 1 + binary-name: 'reader-yaml.test.tmp.exe' + binary-build-id: '<unknown>' + profile-flags: [ lbr ] + profile-origin: branch profile reader + profile-events: '' + dfs-order: false + hash-func: xxh3 +functions: + - name: SolveCubic + fid: 6 + hash: 0x0000000000000000 + exec: 151 + nblocks: 18 + blocks: + - bid: 0 + insns: 43 + hash: 0x4600940a609c0000 + exec: 151 + succ: [ { bid: 1, cnt: 151, mis: 2 }, { bid: 7, cnt: 0 } ] + - bid: 1 + insns: 7 + hash: 0x167a1f084f130088 + succ: [ { bid: 13, cnt: 151 }, { bid: 2, cnt: 0 } ] + - bid: 13 + insns: 26 + hash: 0xa8d50000f81902a7 + succ: [ { bid: 3, cnt: 89 }, { bid: 2, cnt: 10 } ] + - bid: 3 + insns: 9 + hash: 0xc516000073dc00a0 + succ: [ { bid: 5, cnt: 151 } ] + - bid: 5 + insns: 9 + hash: 0x6446e1ea500111 + - name: usqrt + fid: 7 + hash: 0x0000000000000000 + exec: 20 + nblocks: 6 + blocks: + - bid: 0 + insns: 4 + hash: 0x0000000000000001 + exec: 20 + succ: [ { bid: 1, cnt: 0 } ] + - bid: 1 + insns: 9 + hash: 0x0000000000000001 + succ: [ { bid: 3, cnt: 320, mis: 171 }, { bid: 2, cnt: 0 } ] + - bid: 3 + insns: 2 + hash: 0x0000000000000001 + succ: [ { bid: 1, cnt: 300, mis: 33 }, { bid: 4, cnt: 20 } ] +... diff --git a/bolt/test/X86/stale-matching-min-matched-block.test b/bolt/test/X86/stale-matching-min-matched-block.test new file mode 100644 index 0000000..383d4d7 --- /dev/null +++ b/bolt/test/X86/stale-matching-min-matched-block.test @@ -0,0 +1,10 @@ +## This script checks the stale-matching-min-matched-block flag. + +RUN: yaml2obj %p/Inputs/blarge.yaml &> %t.exe + +## Testing "usqrt" +RUN: llvm-bolt %t.exe -o %t.null --b %p/Inputs/blarge_profile_stale_low_matched_blocks.yaml \ +RUN: --infer-stale-profile=1 --stale-matching-min-matched-block=75 \ +RUN: --profile-ignore-hash=1 --debug-only=bolt-prof 2>&1 | FileCheck %s + +CHECK: BOLT-INFO: inferred profile for 1 (50.00% of profiled, 50.00% of stale) functions responsible for 46.31% samples (552 out of 1192) |