third_party/tcmalloc/chromium/src/tests/sampling_test.sh

   1 #!/bin/sh
   2
   3 # Copyright (c) 2008, Google Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions are
   8 # met:
   9 #
  10 #     * Redistributions of source code must retain the above copyright
  11 # notice, this list of conditions and the following disclaimer.
  12 #     * Redistributions in binary form must reproduce the above
  13 # copyright notice, this list of conditions and the following disclaimer
  14 # in the documentation and/or other materials provided with the
  15 # distribution.
  16 #     * Neither the name of Google Inc. nor the names of its
  17 # contributors may be used to endorse or promote products derived from
  18 # this software without specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 #
  32 # ---
  33 # Author: Craig Silverstein
  34 #
  35 # This is a test that tcmalloc creates, and pprof reads, sampling data
  36 # correctly: both for the heap profile (ReadStackTraces) and for
  37 # growth in the heap sized (ReadGrowthStackTraces).
  38
  39 BINDIR="${BINDIR:-.}"
  40 PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
  41
  42 if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
  43   echo "USAGE: $0 [unittest dir] [path to pprof]"
  44   echo "       By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH"
  45   exit 1
  46 fi
  47
  48 SAMPLING_TEST="${1:-$BINDIR/sampling_test}"
  49 PPROF="${2:-$PPROF_PATH}"
  50 OUTDIR="/tmp/sampling_test_dir"
  51
  52 # libtool is annoying, and puts the actual executable in a different
  53 # directory, replacing the seeming-executable with a shell script.
  54 # We use the error output of sampling_test to indicate its real location
  55 SAMPLING_TEST_BINARY=`"$SAMPLING_TEST" 2>&1 | awk '/USAGE/ {print $2; exit;}'`
  56
  57 # A kludge for cygwin.  Unfortunately, 'test -f' says that 'foo' exists
  58 # even when it doesn't, and only foo.exe exists.  Other unix utilities
  59 # (like nm) need you to say 'foo.exe'.  We use one such utility, cat, to
  60 # see what the *real* binary name is.
  61 if ! cat "$SAMPLING_TEST_BINARY" >/dev/null 2>&1; then
  62   SAMPLING_TEST_BINARY="$SAMPLING_TEST_BINARY".exe
  63 fi
  64
  65 die() {    # runs the command given as arguments, and then dies.
  66     echo "FAILED.  Output from $@"
  67     echo "----"
  68     "$@"
  69     echo "----"
  70     exit 1
  71 }
  72
  73 rm -rf "$OUTDIR" || die "Unable to delete $OUTDIR"
  74 mkdir "$OUTDIR" || die "Unable to create $OUTDIR"
  75
  76 # This puts the output into out.heap and out.growth.  It allocates
  77 # 8*10^7 bytes of memory, which is 76M.  Because we sample, the
  78 # estimate may be a bit high or a bit low: we accept anything from
  79 # 50M to 99M.
  80 "$SAMPLING_TEST" "$OUTDIR/out"
  81
  82 echo "Testing heap output..."
  83 "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap" \
  84    | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \
  85    || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap"
  86 echo "OK"
  87
  88 echo "Testing growth output..."
  89 "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth" \
  90    | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \
  91    || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth"
  92 echo "OK"
  93
  94 echo "PASS"