/tests/utils/testapp/gen-ust-tracef/gen-ust-tracef
/tests/regression/tools/live/live_test
/tests/unit/ini_config/ini_config
+/tests/perf/find_event
+/tests/perf/test_perf_raw
# man pages
/doc/man/*.1
pages with the `--help` option or with the `lttng help` command.
Note that without `man`, you cannot get offline help with
LTTng-tools commands, not even their usage.
+ - **libpfm >= 4.0**: needed to run the perf regression test suite.
+ - Debian/Ubuntu package: `libpfm4-dev`
LTTng-tools supports both the [LTTng Linux Kernel tracer](https://lttng.org)
and [LTTng user space tracer](https://lttng.org) released as part of the same
]
)
+# check for libpfm
+AC_CHECK_LIB([pfm], [pfm_initialize],
+ [
+ have_libpfm=yes
+ ])
+AM_CONDITIONAL([LTTNG_TOOLS_BUILD_WITH_LIBPFM], [test "x$have_libpfm" = "xyes"])
+
AC_ARG_ENABLE([git-version],
[AC_HELP_STRING([--disable-git-version],
[Do not use the git version for the build])],
tests/stress/Makefile
tests/unit/Makefile
tests/unit/ini_config/Makefile
+ tests/perf/Makefile
tests/utils/Makefile
tests/utils/tap/Makefile
tests/utils/testapp/Makefile
# Inject variable into python test script.
AC_CONFIG_FILES([tests/regression/ust/python-logging/test_python_logging],[chmod +x tests/regression/ust/python-logging/test_python_logging])
+# Inject LTTNG_TOOLS_BUILD_WITH_LIBPFM variable in test script.
+AC_CONFIG_FILES([tests/perf/test_perf_raw],[chmod +x tests/perf/test_perf_raw])
AC_OUTPUT
SUBDIRS =
-DIST_SUBDIRS = utils regression unit stress destructive
+DIST_SUBDIRS = utils regression unit stress destructive perf
if BUILD_TESTS
-SUBDIRS += . utils regression unit stress destructive
+SUBDIRS += . utils regression unit stress destructive perf
if HAS_PGREP
check-am:
$(top_srcdir)/tests/utils/warn_processes.sh $(PGREP)
endif
-dist_noinst_SCRIPTS = run.sh fast_regression long_regression root_regression root_destructive_tests
-EXTRA_DIST = run.sh fast_regression long_regression root_regression README root_destructive_tests
+dist_noinst_SCRIPTS = run.sh fast_regression long_regression root_regression root_destructive_tests perf_regression
+EXTRA_DIST = run.sh fast_regression long_regression root_regression README root_destructive_tests perf_regression
all-local:
@if [ x"$(srcdir)" != x"$(builddir)" ]; then \
--- /dev/null
+if LTTNG_TOOLS_BUILD_WITH_LIBPFM
+LIBS += -lpfm
+
+noinst_PROGRAMS = find_event
+find_event_SOURCES = find_event.c
+endif
--- /dev/null
+/*
+ * Copyright (c) 2016 Julien Desfossez <jdesfossez@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <perfmon/pfmlib.h>
+#include <string.h>
+
+int main(int argc, char **argv)
+{
+ int ret, i;
+ unsigned int j;
+ pfm_pmu_info_t pinfo;
+
+ if (argc != 2) {
+ fprintf(stderr, "Usage: %s <pmu counter to find>\n"
+ "ex: %s UNHALTED_REFERENCE_CYCLES\n"
+ "Returns the first occurence it finds with "
+ "return code 0.\n"
+ "If not found returns 1, on error returns -1\n",
+ argv[0], argv[0]);
+ ret = -1;
+ goto end;
+ }
+
+ memset(&pinfo, 0, sizeof(pinfo));
+ pinfo.size = sizeof(pinfo);
+
+ ret = pfm_initialize();
+ if (ret != PFM_SUCCESS) {
+ fprintf(stderr, "Failed to initialise libpfm: %s",
+ pfm_strerror(ret));
+ ret = -1;
+ goto end;
+ }
+
+ pfm_for_all_pmus(j) {
+ ret = pfm_get_pmu_info(j, &pinfo);
+ if (ret != PFM_SUCCESS) {
+ continue;
+ }
+
+ for (i = pinfo.first_event; i != -1; i = pfm_get_event_next(i)) {
+ pfm_event_info_t info =
+ { .size = sizeof(pfm_event_info_t) };
+
+ ret = pfm_get_event_info(i, PFM_OS_NONE, &info);
+ if (ret != PFM_SUCCESS) {
+ fprintf(stderr, "Cannot get event info: %s\n",
+ pfm_strerror(ret));
+ ret = -1;
+ goto end;
+ }
+
+ if (info.pmu != j) {
+ continue;
+ }
+
+ if (strcmp(info.name, argv[1]) == 0) {
+ fprintf(stdout, "r%" PRIx64 "\n", info.code);
+ ret = 0;
+ goto end;
+ }
+ }
+ }
+
+ ret = 1;
+
+end:
+ return ret;
+}
--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2016 Julien Desfossez <jdesfossez@efficios.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License, version 2 only, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+TEST_DESC="Perf counters"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/..
+LTTNG_BIN="lttng"
+SESSION_NAME="perf_counters"
+NUM_TESTS=20
+NR_ITER=1
+NR_USEC_WAIT=1
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+# Empty if libpfm is installed, "#" otherwise
+HAVE_LIBPFM="@LTTNG_TOOLS_BUILD_WITH_LIBPFM_TRUE@"
+
+source $TESTDIR/utils/utils.sh
+
+function enable_ust_lttng_event_per_chan()
+{
+ sess_name="$1"
+ event_name="$2"
+ chan_name="$3"
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" -s $sess_name -c $chan_name -u >/dev/null 2>&1
+ ok $? "Enable event $event_name for session $sess_name in channel $chan_name"
+}
+
+function have_libpfm()
+{
+ test -z $HAVE_LIBPFM
+ ok $? "Have libpfm installed"
+}
+
+function test_ust_raw()
+{
+ TRACE_PATH=$(mktemp -d)
+ SESSION_NAME="ust_perf"
+ CHAN_NAME="mychan"
+ EVENT_NAME="tp:tptest"
+ PMU="UNHALTED_REFERENCE_CYCLES"
+ PERFID=$($CURDIR/find_event $PMU)
+ test $? -eq "0"
+ ok $? "Find PMU $PMU"
+
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+
+ enable_ust_lttng_channel_ok $SESSION_NAME $CHAN_NAME
+
+ enable_ust_lttng_event_per_chan $SESSION_NAME $EVENT_NAME $CHAN_NAME
+
+ add_context_ust_ok $SESSION_NAME $CHAN_NAME "perf:thread:raw:${PERFID}:test"
+
+ start_lttng_tracing_ok
+
+ $TESTAPP_BIN $NR_ITER $NR_USEC_WAIT >/dev/null 2>&1
+
+ stop_lttng_tracing_ok
+
+ destroy_lttng_session_ok $SESSION_NAME
+
+ validate_trace "perf_thread_raw_${PERFID}_test" $TRACE_PATH
+
+ rm -rf $TRACE_PATH
+}
+
+function test_kernel_raw()
+{
+ TRACE_PATH=$(mktemp -d)
+ SESSION_NAME="kernel_perf"
+ CHAN_NAME="mychan"
+ EVENT_NAME="lttng_test_filter_event"
+ PMU="UNHALTED_REFERENCE_CYCLES"
+ PERFID=$($CURDIR/find_event $PMU)
+ test $? -eq "0"
+ ok $? "Find PMU $PMU"
+
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+
+ lttng_enable_kernel_channel_ok $SESSION_NAME $CHAN_NAME
+
+ enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME $CHAN_NAME
+
+ add_context_kernel_ok $SESSION_NAME $CHAN_NAME "perf:cpu:raw:${PERFID}:test"
+
+ start_lttng_tracing_ok
+
+ echo -n 10 > /proc/lttng-test-filter-event
+
+ stop_lttng_tracing_ok
+
+ destroy_lttng_session_ok $SESSION_NAME
+
+ validate_trace "perf_cpu_raw_${PERFID}_test" $TRACE_PATH
+
+ rm -rf $TRACE_PATH
+}
+
+if [ "$(id -u)" == "0" ]; then
+ isroot=1
+else
+ isroot=0
+fi
+
+# MUST set TESTDIR before calling those functions
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+start_lttng_sessiond
+
+have_libpfm
+
+test_ust_raw
+
+skip $isroot "Root access is needed for kernel testing, skipping." 9 ||
+{
+ modprobe lttng-test
+ test_kernel_raw
+ rmmod lttng-test
+}
+
+stop_lttng_sessiond
--- /dev/null
+perf/test_perf_raw
projects / lttng-tools.git / commitdiff
