chromiumos-wide-profiling/perf_test_files.cc

// Copyright 2016 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chromiumos-wide-profiling/perf_test_files.h"

// TODO(sque): Re-enable callgraph testing when longer-term
// changes to quipper are done.
// #define TEST_CALLGRAPH

namespace perf_test_files {

const std::vector<const char*>& GetPerfDataFiles() {
  static const std::vector<const char*>* files = new std::vector<const char*> {
    // The following perf data contains the following event types, as passed to
    // perf record via the -e option:
    // - cycles
    // - instructions
    // - cache-references
    // - cache-misses
    // - branches
    // - branch-misses

    // Obtained with "perf record -- echo > /dev/null"
    "perf.data.singleprocess-3.4",

    // Obtained with "perf record -a -- sleep $N", for N in {0, 1, 5}.
    "perf.data.systemwide.0-3.4",
#ifdef TEST_LARGE_PERF_DATA
    "perf.data.systemwide.1-3.4",
    "perf.data.systemwide.5-3.4",

    // Obtained with "perf record -a -- sleep $N", for N in {0, 1, 5}.
    // While in the background, this loop is running:
    //   while true; do ls > /dev/null; done
    "perf.data.busy.0-3.4",
    "perf.data.busy.1-3.4",
    "perf.data.busy.5-3.4",
#endif  // defined(TEST_LARGE_PERF_DATA)

    // Obtained with "perf record -a -- sleep 2"
    // While in the background, this loop is running:
    //   while true; do restart powerd; sleep .2; done
    "perf.data.forkexit-3.4",

#ifdef TEST_CALLGRAPH
    // Obtained with "perf record -a -g -- sleep 2"
    "perf.data.callgraph-3.4",
#endif
    // Obtained with "perf record -a -b -- sleep 2"
    "perf.data.branch-3.4",
#ifdef TEST_CALLGRAPH
    // Obtained with "perf record -a -g -b -- sleep 2"
    "perf.data.callgraph_and_branch-3.4",
#endif

    // Obtained with "perf record -a -R -- sleep 2"
    "perf.data.raw-3.4",
#ifdef TEST_CALLGRAPH
    // Obtained with "perf record -a -R -g -b -- sleep 2"
    "perf.data.raw_callgraph_branch-3.4",
#endif

    // Data from other architectures.
    "perf.data.i686-3.4",     // 32-bit x86
    "perf.data.armv7-3.4",    // ARM v7

    // Same as above, obtained from a system running kernel v3.8.
    "perf.data.singleprocess-3.8",
    "perf.data.systemwide.0-3.8",
#ifdef TEST_LARGE_PERF_DATA
    "perf.data.systemwide.1-3.8",
    "perf.data.systemwide.5-3.8",
    "perf.data.busy.0-3.8",
    "perf.data.busy.1-3.8",
    "perf.data.busy.5-3.8",
#endif  // defined(TEST_LARGE_PERF_DATA)

    "perf.data.forkexit-3.8",
#ifdef TEST_CALLGRAPH
    "perf.data.callgraph-3.8",
#endif
    "perf.data.branch-3.8",
#ifdef TEST_CALLGRAPH
    "perf.data.callgraph_and_branch-3.8",
#endif
    "perf.data.armv7.perf_3.14-3.8",      // ARM v7 obtained using perf 3.14.

    // Obtained from a system that uses NUMA topology.
    "perf.data.numatopology-3.2",

    // Perf data that contains hardware and software events.
    // Command:
    //    perf record -a -c 1000000 -e cycles,branch-misses,cpu-clock -- sleep 2
    // HW events are cycles and branch-misses, SW event is cpu-clock.
    // This also tests non-consecutive event types.
    "perf.data.hw_and_sw-3.4",

    // This test first mmap()s a DSO, then fork()s to copy the mapping to the
    // child and then modifies the mapping by mmap()ing a DSO on top of the old
    // one. It then records SAMPLEs events in the child. It ensures the SAMPLEs
    // in the child are attributed to the first DSO that was mmap()ed, not the
    // second one.
    "perf.data.remmap-3.2",

    // This is sample with a frequency higher than the max frequency, so it has
    // throttle and unthrottle events.
    "perf.data.throttle-3.8",
  };
  return *files;
}

const std::vector<const char*>& GetPerfPipedDataFiles() {
  static const std::vector<const char*>* files = new std::vector<const char*> {
    "perf.data.piped.host-3.2",
    "perf.data.piped.target-3.4",
    "perf.data.piped.target.throttled-3.4",
    "perf.data.piped.target-3.8",

    // Piped data that contains hardware and software events.
    // Command:
    //    perf record -a -c 1000000 -e cycles,branch-misses,cpu-clock -o -
    //        -- sleep 2
    // HW events are cycles and branch-misses, SW event is cpu-clock.
    "perf.data.piped.hw_and_sw-3.4",

    // Piped data with extra data at end.
    "perf.data.piped.extrabyte-3.4",
    "perf.data.piped.extradata-3.4",
  };
  return *files;
}

const std::vector<const char*>& GetCorruptedPerfPipedDataFiles()  {
  static const std::vector<const char*>* files = new std::vector<const char*> {
    // Has a SAMPLE event with size set to zero. Don't go into an infinite loop!
    "perf.data.piped.corrupted.zero_size_sample-3.2",
  };
  return *files;
}

const std::vector<const char*>& GetPerfDataProtoFiles()  {
  static const std::vector<const char*>* files = new std::vector<const char*> {
    "perf.callgraph.pb_text",
  };
  return *files;
}

}  // namespace perf_test_files