30b93db547
Adds compile time flag -mllvm -memprof-histogram and runtime flag histogram=true|false to turn Histogram collection on and off. The -memprof-histogram flag relies on -memprof-use-callbacks=true to work. Updates shadow mapping logic in histogram mode from having one 8 byte counter for 64 bytes, to 1 byte for 8 bytes, capped at 255. Only supports this granularity as of now. Updates the RawMemprofReader and serializing MemoryInfoBlocks to binary format, including changing to a new version of the raw binary format from version 3 to version 4. Updates creating MemoryInfoBlocks with and without Histograms. When two MemoryInfoBlocks are merged, AccessCounts are summed up and the shorter Histogram is removed. Adds a memprof_histogram test case. Initial commit for adding AccessCountHistograms up until RawProfile for memprof
99 lines
3.4 KiB
Plaintext
99 lines
3.4 KiB
Plaintext
REQUIRES: x86_64-linux
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To update the inputs used below run Inputs/update_memprof_inputs.sh /path/to/updated/clang
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RUN: llvm-profdata show --memory %p/Inputs/padding-histogram.memprofraw --profiled-binary %p/Inputs/padding-histogram.memprofexe -o - | FileCheck %s
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We expect 2 different MIBs with histogram values. This test is to make sure we properly deal with padding.
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CHECK: MemprofProfile:
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CHECK-NEXT: Summary:
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CHECK-NEXT: Version: 4
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CHECK-NEXT: NumSegments: {{[0-9]+}}
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CHECK-NEXT: NumMibInfo: 2
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CHECK-NEXT: NumAllocFunctions: 1
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CHECK-NEXT: NumStackOffsets: 2
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CHECK-NEXT: Segments:
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CHECK-NEXT: -
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CHECK-NEXT: BuildId: {{[[:xdigit:]]+}}
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CHECK-NEXT: Start: 0x{{[[:xdigit:]]+}}
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CHECK-NEXT: End: 0x{{[[:xdigit:]]+}}
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CHECK-NEXT: Offset: 0x{{[[:xdigit:]]+}}
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CHECK-NEXT: -
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CHECK: Records:
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CHEC-NEXT FunctionGUID: {{[0-9]+}}
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CHEC-NEXT AllocSites:
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CHEC-NEXT -
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CHEC-NEXT Callstack:
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CHEC-NEXT -
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CHEC-NEXT Function: {{[0-9]+}}
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CHEC-NEXT SymbolName: main
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CHEC-NEXT LineOffset: 3
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CHEC-NEXT Column: 10
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CHEC-NEXT Inline: 0
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CHEC-NEXT MemInfoBlock:
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CHEC-NEXT AllocCount: 1
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CHEC-NEXT TotalAccessCount: 5
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CHEC-NEXT MinAccessCount: 5
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CHEC-NEXT MaxAccessCount: 5
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CHEC-NEXT TotalSize: 24
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CHEC-NEXT MinSize: 24
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CHEC-NEXT MaxSize: 24
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CHEC-NEXT AllocTimestamp: {{[0-9]+}}
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CHEC-NEXT DeallocTimestamp: {{[0-9]+}}
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CHEC-NEXT TotalLifetime: 0
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CHEC-NEXT MinLifetime: 0
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CHEC-NEXT MaxLifetime: 0
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CHEC-NEXT AllocCpuId: 11
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CHEC-NEXT DeallocCpuId: 11
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CHEC-NEXT NumMigratedCpu: 0
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CHEC-NEXT NumLifetimeOverlaps: 0
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CHEC-NEXT NumSameAllocCpu: 0
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CHEC-NEXT NumSameDeallocCpu: 0
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CHEC-NEXT DataTypeId: 0
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CHEC-NEXT TotalAccessDensity: 20
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CHEC-NEXT MinAccessDensity: 20
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CHEC-NEXT MaxAccessDensity: 20
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CHEC-NEXT TotalLifetimeAccessDensity: 20000
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CHEC-NEXT MinLifetimeAccessDensity: 20000
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CHEC-NEXT MaxLifetimeAccessDensity: 20000
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CHEC-NEXT AccessHistogramSize: 3
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CHEC-NEXT AccessHistogram: {{[0-9]+}}
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CHEC-NEXT AccessHistogramValues: -2 -1 -2
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CHEC-NEXT -
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CHEC-NEXT Callstack:
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CHEC-NEXT -
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CHEC-NEXT Function: {{[0-9]+}}
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CHEC-NEXT SymbolName: main
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CHEC-NEXT LineOffset: 10
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CHEC-NEXT Column: 10
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CHEC-NEXT Inline: 0
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CHEC-NEXT MemInfoBlock:
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CHEC-NEXT AllocCount: 1
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CHEC-NEXT TotalAccessCount: 4
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CHEC-NEXT MinAccessCount: 4
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CHEC-NEXT MaxAccessCount: 4
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CHEC-NEXT TotalSize: 48
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CHEC-NEXT MinSize: 48
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CHEC-NEXT MaxSize: 48
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CHEC-NEXT AllocTimestamp: {{[0-9]+}}
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CHEC-NEXT DeallocTimestamp: {{[0-9]+}}
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CHEC-NEXT TotalLifetime: 0
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CHEC-NEXT MinLifetime: 0
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CHEC-NEXT MaxLifetime: 0
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CHEC-NEXT AllocCpuId: 11
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CHEC-NEXT DeallocCpuId: 11
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CHEC-NEXT NumMigratedCpu: 0
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CHEC-NEXT NumLifetimeOverlaps: 0
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CHEC-NEXT NumSameAllocCpu: 0
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CHEC-NEXT NumSameDeallocCpu: 0
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CHEC-NEXT DataTypeId: 0
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CHEC-NEXT TotalAccessDensity: 8
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CHEC-NEXT MinAccessDensity: 8
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CHEC-NEXT MaxAccessDensity: 8
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CHEC-NEXT TotalLifetimeAccessDensity: 8000
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CHEC-NEXT MinLifetimeAccessDensity: 8000
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CHEC-NEXT MaxLifetimeAccessDensity: 8000
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CHEC-NEXT AccessHistogramSize: 6
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CHEC-NEXT AccessHistogram: {{[0-9]+}}
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CHEC-NEXT AccessHistogramValues: -2 -0 -0 -0 -1 -1 |