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Add support for the cache-related operations counters in benchlib

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This adds support for checking cache accesses and misses, per
operation (read, write and prefetch) as well as per cache level (L1
for data, L1 for instructions, last level).

The branch prediction unit (BPU) is also accessed via the cache
monitor subsystem.

Change-Id: I8fa96b141cc777c9d231bd57fa36bca33ae7bdfd
Reviewed-by: Jason McDonald <macadder1@gmail.com>
This commit is contained in:
Thiago Macieira 2012-04-09 18:06:21 -03:00 committed by The Qt Project
parent 051f68c2d3
commit 914b56dbf5
1 changed files with 180 additions and 23 deletions
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203
src/testlib/qbenchmarkperfevents.cpp
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@ -59,6 +59,29 @@
#include "3rdparty/linux_perf_event_p.h"
// for PERF_TYPE_HW_CACHE, the config is a bitmask
// lowest 8 bits: cache type
// bits 8 to 15: cache operation
// bits 16 to 23: cache result
#define CACHE_L1D_READ (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_L1D_WRITE (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_L1D_PREFETCH (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_L1I_READ (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_L1I_PREFETCH (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_LLC_READ (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_LLC_WRITE (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8| PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_LLC_PREFETCH (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_L1D_READ_MISS (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_L1D_WRITE_MISS (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_L1D_PREFETCH_MISS (PERF_COUNT_HW_CACHE_L1D | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_L1I_READ_MISS (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_L1I_PREFETCH_MISS (PERF_COUNT_HW_CACHE_L1I | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_LLC_READ_MISS (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_LLC_WRITE_MISS (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_WRITE << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_LLC_PREFETCH_MISS (PERF_COUNT_HW_CACHE_LL | PERF_COUNT_HW_CACHE_OP_PREFETCH << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
#define CACHE_BRANCH_READ (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16)
#define CACHE_BRANCH_READ_MISS (PERF_COUNT_HW_CACHE_BPU | PERF_COUNT_HW_CACHE_OP_READ << 8 | PERF_COUNT_HW_CACHE_RESULT_MISS << 16)
QT_BEGIN_NAMESPACE
static quint32 event_type = PERF_TYPE_HARDWARE;
@ -118,6 +141,24 @@ bool QBenchmarkPerfEventsMeasurer::isAvailable()
SOFTWARE CPU_MIGRATIONS CPUMigrations cpu-migrations migrations
SOFTWARE ALIGNMENT_FAULTS AlignmentFaults alignment-faults
SOFTWARE EMULATION_FAULTS EmulationFaults emulation-faults
HW_CACHE L1D_READ CacheReads l1d-cache-reads l1d-cache-loads l1d-reads l1d-loads
HW_CACHE L1D_WRITE CacheWrites l1d-cache-writes l1d-cache-stores l1d-writes l1d-stores
HW_CACHE L1D_PREFETCH CachePrefetches l1d-cache-prefetches l1d-prefetches
HW_CACHE L1I_READ CacheReads l1i-cache-reads l1i-cache-loads l1i-reads l1i-loads
HW_CACHE L1I_PREFETCH CachePrefetches l1i-cache-prefetches l1i-prefetches
HW_CACHE LLC_READ CacheReads llc-cache-reads llc-cache-loads llc-loads llc-reads
HW_CACHE LLC_WRITE CacheWrites llc-cache-writes llc-cache-stores llc-writes llc-stores
HW_CACHE LLC_PREFETCH CachePrefetches llc-cache-prefetches llc-prefetches
HW_CACHE L1D_READ_MISS CacheReads l1d-cache-read-misses l1d-cache-load-misses l1d-read-misses l1d-load-misses
HW_CACHE L1D_WRITE_MISS CacheWrites l1d-cache-write-misses l1d-cache-store-misses l1d-write-misses l1d-store-misses
HW_CACHE L1D_PREFETCH_MISS CachePrefetches l1d-cache-prefetch-misses l1d-prefetch-misses
HW_CACHE L1I_READ_MISS CacheReads l1i-cache-read-misses l1i-cache-load-misses l1i-read-misses l1i-load-misses
HW_CACHE L1I_PREFETCH_MISS CachePrefetches l1i-cache-prefetch-misses l1i-prefetch-misses
HW_CACHE LLC_READ_MISS CacheReads llc-cache-read-misses llc-cache-load-misses llc-read-misses llc-load-misses
HW_CACHE LLC_WRITE_MISS CacheWrites llc-cache-write-misses llc-cache-store-misses llc-write-misses llc-store-misses
HW_CACHE LLC_PREFETCH_MISS CachePrefetches llc-cache-prefetch-misses llc-prefetch-misses
HW_CACHE BRANCH_READ BranchInstructions branch-reads branch-loads branch-predicts
HW_CACHE BRANCH_READ_MISS BranchMisses branch-mispredicts branch-read-misses branch-load-misses
Use the following Perl script to re-generate the list
=== cut perl ===
@ -173,7 +214,13 @@ struct Events {
static const char eventlist_strings[] =
"alignment-faults\0"
"branch-instructions\0"
"branch-load-misses\0"
"branch-loads\0"
"branch-mispredicts\0"
"branch-misses\0"
"branch-predicts\0"
"branch-read-misses\0"
"branch-reads\0"
"branches\0"
"bus-cycles\0"
"cache-misses\0"
@ -189,6 +236,58 @@ static const char eventlist_strings[] =
"idle-cycles-backend\0"
"idle-cycles-frontend\0"
"instructions\0"
"l1d-cache-load-misses\0"
"l1d-cache-loads\0"
"l1d-cache-prefetch-misses\0"
"l1d-cache-prefetches\0"
"l1d-cache-read-misses\0"
"l1d-cache-reads\0"
"l1d-cache-store-misses\0"
"l1d-cache-stores\0"
"l1d-cache-write-misses\0"
"l1d-cache-writes\0"
"l1d-load-misses\0"
"l1d-loads\0"
"l1d-prefetch-misses\0"
"l1d-prefetches\0"
"l1d-read-misses\0"
"l1d-reads\0"
"l1d-store-misses\0"
"l1d-stores\0"
"l1d-write-misses\0"
"l1d-writes\0"
"l1i-cache-load-misses\0"
"l1i-cache-loads\0"
"l1i-cache-prefetch-misses\0"
"l1i-cache-prefetches\0"
"l1i-cache-read-misses\0"
"l1i-cache-reads\0"
"l1i-load-misses\0"
"l1i-loads\0"
"l1i-prefetch-misses\0"
"l1i-prefetches\0"
"l1i-read-misses\0"
"l1i-reads\0"
"llc-cache-load-misses\0"
"llc-cache-loads\0"
"llc-cache-prefetch-misses\0"
"llc-cache-prefetches\0"
"llc-cache-read-misses\0"
"llc-cache-reads\0"
"llc-cache-store-misses\0"
"llc-cache-stores\0"
"llc-cache-write-misses\0"
"llc-cache-writes\0"
"llc-load-misses\0"
"llc-loads\0"
"llc-prefetch-misses\0"
"llc-prefetches\0"
"llc-read-misses\0"
"llc-reads\0"
"llc-store-misses\0"
"llc-stores\0"
"llc-write-misses\0"
"llc-writes\0"
"major-faults\0"
"migrations\0"
"minor-faults\0"
@ -201,29 +300,87 @@ static const char eventlist_strings[] =
static const Events eventlist[] = {
{ 0, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS, QTest::AlignmentFaults },
{ 17, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, QTest::BranchInstructions },
{ 37, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, QTest::BranchMisses },
{ 51, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, QTest::BranchInstructions },
{ 60, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, QTest::BusCycles },
{ 71, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, QTest::CacheMisses },
{ 84, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, QTest::CacheReferences },
{ 101, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches },
{ 118, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK, QTest::WalltimeMilliseconds },
{ 128, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles },
{ 139, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations },
{ 154, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches },
{ 157, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles },
{ 164, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, QTest::EmulationFaults },
{ 181, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults },
{ 188, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles },
{ 208, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles },
{ 229, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, QTest::Instructions },
{ 242, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, QTest::MajorPageFaults },
{ 255, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations },
{ 266, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, QTest::MinorPageFaults },
{ 279, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults },
{ 291, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles },
{ 314, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles },
{ 338, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK, QTest::WalltimeMilliseconds },
{ 37, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ_MISS, QTest::BranchMisses },
{ 56, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ, QTest::BranchInstructions },
{ 69, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ_MISS, QTest::BranchMisses },
{ 88, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, QTest::BranchMisses },
{ 102, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ, QTest::BranchInstructions },
{ 118, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ_MISS, QTest::BranchMisses },
{ 137, PERF_TYPE_HW_CACHE, CACHE_BRANCH_READ, QTest::BranchInstructions },
{ 150, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, QTest::BranchInstructions },
{ 159, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, QTest::BusCycles },
{ 170, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, QTest::CacheMisses },
{ 183, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, QTest::CacheReferences },
{ 200, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches },
{ 217, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK, QTest::WalltimeMilliseconds },
{ 227, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles },
{ 238, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations },
{ 253, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, QTest::ContextSwitches },
{ 256, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, QTest::CPUCycles },
{ 263, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, QTest::EmulationFaults },
{ 280, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults },
{ 287, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles },
{ 307, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles },
{ 328, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, QTest::Instructions },
{ 341, PERF_TYPE_HW_CACHE, CACHE_L1D_READ_MISS, QTest::CacheReads },
{ 363, PERF_TYPE_HW_CACHE, CACHE_L1D_READ, QTest::CacheReads },
{ 379, PERF_TYPE_HW_CACHE, CACHE_L1D_PREFETCH_MISS, QTest::CachePrefetches },
{ 405, PERF_TYPE_HW_CACHE, CACHE_L1D_PREFETCH, QTest::CachePrefetches },
{ 426, PERF_TYPE_HW_CACHE, CACHE_L1D_READ_MISS, QTest::CacheReads },
{ 448, PERF_TYPE_HW_CACHE, CACHE_L1D_READ, QTest::CacheReads },
{ 464, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE_MISS, QTest::CacheWrites },
{ 487, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE, QTest::CacheWrites },
{ 504, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE_MISS, QTest::CacheWrites },
{ 527, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE, QTest::CacheWrites },
{ 544, PERF_TYPE_HW_CACHE, CACHE_L1D_READ_MISS, QTest::CacheReads },
{ 560, PERF_TYPE_HW_CACHE, CACHE_L1D_READ, QTest::CacheReads },
{ 570, PERF_TYPE_HW_CACHE, CACHE_L1D_PREFETCH_MISS, QTest::CachePrefetches },
{ 590, PERF_TYPE_HW_CACHE, CACHE_L1D_PREFETCH, QTest::CachePrefetches },
{ 605, PERF_TYPE_HW_CACHE, CACHE_L1D_READ_MISS, QTest::CacheReads },
{ 621, PERF_TYPE_HW_CACHE, CACHE_L1D_READ, QTest::CacheReads },
{ 631, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE_MISS, QTest::CacheWrites },
{ 648, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE, QTest::CacheWrites },
{ 659, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE_MISS, QTest::CacheWrites },
{ 676, PERF_TYPE_HW_CACHE, CACHE_L1D_WRITE, QTest::CacheWrites },
{ 687, PERF_TYPE_HW_CACHE, CACHE_L1I_READ_MISS, QTest::CacheReads },
{ 709, PERF_TYPE_HW_CACHE, CACHE_L1I_READ, QTest::CacheReads },
{ 725, PERF_TYPE_HW_CACHE, CACHE_L1I_PREFETCH_MISS, QTest::CachePrefetches },
{ 751, PERF_TYPE_HW_CACHE, CACHE_L1I_PREFETCH, QTest::CachePrefetches },
{ 772, PERF_TYPE_HW_CACHE, CACHE_L1I_READ_MISS, QTest::CacheReads },
{ 794, PERF_TYPE_HW_CACHE, CACHE_L1I_READ, QTest::CacheReads },
{ 810, PERF_TYPE_HW_CACHE, CACHE_L1I_READ_MISS, QTest::CacheReads },
{ 826, PERF_TYPE_HW_CACHE, CACHE_L1I_READ, QTest::CacheReads },
{ 836, PERF_TYPE_HW_CACHE, CACHE_L1I_PREFETCH_MISS, QTest::CachePrefetches },
{ 856, PERF_TYPE_HW_CACHE, CACHE_L1I_PREFETCH, QTest::CachePrefetches },
{ 871, PERF_TYPE_HW_CACHE, CACHE_L1I_READ_MISS, QTest::CacheReads },
{ 887, PERF_TYPE_HW_CACHE, CACHE_L1I_READ, QTest::CacheReads },
{ 897, PERF_TYPE_HW_CACHE, CACHE_LLC_READ_MISS, QTest::CacheReads },
{ 919, PERF_TYPE_HW_CACHE, CACHE_LLC_READ, QTest::CacheReads },
{ 935, PERF_TYPE_HW_CACHE, CACHE_LLC_PREFETCH_MISS, QTest::CachePrefetches },
{ 961, PERF_TYPE_HW_CACHE, CACHE_LLC_PREFETCH, QTest::CachePrefetches },
{ 982, PERF_TYPE_HW_CACHE, CACHE_LLC_READ_MISS, QTest::CacheReads },
{ 1004, PERF_TYPE_HW_CACHE, CACHE_LLC_READ, QTest::CacheReads },
{ 1020, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE_MISS, QTest::CacheWrites },
{ 1043, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE, QTest::CacheWrites },
{ 1060, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE_MISS, QTest::CacheWrites },
{ 1083, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE, QTest::CacheWrites },
{ 1100, PERF_TYPE_HW_CACHE, CACHE_LLC_READ_MISS, QTest::CacheReads },
{ 1116, PERF_TYPE_HW_CACHE, CACHE_LLC_READ, QTest::CacheReads },
{ 1126, PERF_TYPE_HW_CACHE, CACHE_LLC_PREFETCH_MISS, QTest::CachePrefetches },
{ 1146, PERF_TYPE_HW_CACHE, CACHE_LLC_PREFETCH, QTest::CachePrefetches },
{ 1161, PERF_TYPE_HW_CACHE, CACHE_LLC_READ_MISS, QTest::CacheReads },
{ 1177, PERF_TYPE_HW_CACHE, CACHE_LLC_READ, QTest::CacheReads },
{ 1187, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE_MISS, QTest::CacheWrites },
{ 1204, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE, QTest::CacheWrites },
{ 1215, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE_MISS, QTest::CacheWrites },
{ 1232, PERF_TYPE_HW_CACHE, CACHE_LLC_WRITE, QTest::CacheWrites },
{ 1243, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, QTest::MajorPageFaults },
{ 1256, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, QTest::CPUMigrations },
{ 1267, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, QTest::MinorPageFaults },
{ 1280, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, QTest::PageFaults },
{ 1292, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, QTest::StalledCycles },
{ 1315, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, QTest::StalledCycles },
{ 1339, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK, QTest::WalltimeMilliseconds },
{ 0, PERF_TYPE_MAX, 0, QTest::Events }
};
/* -- END GENERATED CODE -- */