tests/perf/test_perf_raw.in

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2016 Julien Desfossez <jdesfossez@efficios.com>
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License, version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This program is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 # more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # this program; if not, write to the Free Software Foundation, Inc., 51
  16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 TEST_DESC="Perf counters"
  19
  20 CURDIR=$(dirname $0)/
  21 TESTDIR=$CURDIR/..
  22 LTTNG_BIN="lttng"
  23 SESSION_NAME="perf_counters"
  24 NUM_TESTS=20
  25 NR_ITER=1
  26 NR_USEC_WAIT=1
  27 TESTAPP_PATH="$TESTDIR/utils/testapp"
  28 TESTAPP_NAME="gen-ust-events"
  29 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
  30 # Empty if libpfm is installed, "#" otherwise
  31 HAVE_LIBPFM="@LTTNG_TOOLS_BUILD_WITH_LIBPFM_TRUE@"
  32
  33 source $TESTDIR/utils/utils.sh
  34
  35 function enable_ust_lttng_event_per_chan()
  36 {
  37         sess_name="$1"
  38         event_name="$2"
  39         chan_name="$3"
  40
  41         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -c $chan_name -u >/dev/null 2>&1
  42         ok $? "Enable event $event_name for session $sess_name in channel $chan_name"
  43 }
  44
  45 function have_libpfm()
  46 {
  47         test -z $HAVE_LIBPFM
  48         ok $? "Have libpfm installed"
  49 }
  50
  51 function test_ust_raw()
  52 {
  53         TRACE_PATH=$(mktemp -d)
  54         SESSION_NAME="ust_perf"
  55         CHAN_NAME="mychan"
  56         EVENT_NAME="tp:tptest"
  57         PMU="UNHALTED_REFERENCE_CYCLES"
  58         PERFID=$($CURDIR/find_event $PMU)
  59         test $? -eq "0"
  60         ok $? "Find PMU $PMU"
  61
  62         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  63
  64         enable_ust_lttng_channel_ok $SESSION_NAME $CHAN_NAME
  65
  66         enable_ust_lttng_event_per_chan $SESSION_NAME $EVENT_NAME $CHAN_NAME
  67
  68         add_context_ust_ok $SESSION_NAME $CHAN_NAME "perf:thread:raw:${PERFID}:test"
  69
  70         start_lttng_tracing_ok
  71
  72         $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
  73
  74         stop_lttng_tracing_ok
  75
  76         destroy_lttng_session_ok $SESSION_NAME
  77
  78         validate_trace "perf_thread_raw_${PERFID}_test" $TRACE_PATH
  79
  80         rm -rf $TRACE_PATH
  81 }
  82
  83 function test_kernel_raw()
  84 {
  85         TRACE_PATH=$(mktemp -d)
  86         SESSION_NAME="kernel_perf"
  87         CHAN_NAME="mychan"
  88         EVENT_NAME="lttng_test_filter_event"
  89         PMU="UNHALTED_REFERENCE_CYCLES"
  90         PERFID=$($CURDIR/find_event $PMU)
  91         test $? -eq "0"
  92         ok $? "Find PMU $PMU"
  93
  94         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  95
  96         lttng_enable_kernel_channel_ok $SESSION_NAME $CHAN_NAME
  97
  98         enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHAN_NAME
  99
 100         add_context_kernel_ok $SESSION_NAME $CHAN_NAME "perf:cpu:raw:${PERFID}:test"
 101
 102         start_lttng_tracing_ok
 103
 104         echo -n 10 > /proc/lttng-test-filter-event
 105
 106         stop_lttng_tracing_ok
 107
 108         destroy_lttng_session_ok $SESSION_NAME
 109
 110         validate_trace "perf_cpu_raw_${PERFID}_test" $TRACE_PATH
 111
 112         rm -rf $TRACE_PATH
 113 }
 114
 115 if [ "$(id -u)" == "0" ]; then
 116         isroot=1
 117 else
 118         isroot=0
 119 fi
 120
 121 # MUST set TESTDIR before calling those functions
 122 plan_tests $NUM_TESTS
 123
 124 print_test_banner "$TEST_DESC"
 125
 126 start_lttng_sessiond
 127
 128 have_libpfm
 129
 130 test_ust_raw
 131
 132 skip $isroot "Root access is needed for kernel testing, skipping." 9 ||
 133 {
 134         modprobe lttng-test
 135         test_kernel_raw
 136         rmmod lttng-test
 137 }
 138
 139 stop_lttng_sessiond