[lttng-dev] [PATCH lttng-tools] tests: Implement tests for lttng-ust LTTNG_UST_BLOCKING_RETRY_TIMEOUT
Mathieu Desnoyers
mathieu.desnoyers at efficios.com
Tue Nov 8 22:59:12 UTC 2016
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
CC: "Carlos O'Donell" <carlos at redhat.com>
---
configure.ac | 1 +
tests/fast_regression | 1 +
tests/regression/ust/Makefile.am | 2 +-
tests/regression/ust/blocking/Makefile.am | 16 +++
tests/regression/ust/blocking/test_blocking | 155 ++++++++++++++++++++++++++++
5 files changed, 174 insertions(+), 1 deletion(-)
create mode 100644 tests/regression/ust/blocking/Makefile.am
create mode 100755 tests/regression/ust/blocking/test_blocking
diff --git a/configure.ac b/configure.ac
index f56a170..06b7e4b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1021,6 +1021,7 @@ AC_CONFIG_FILES([
tests/regression/ust/clock-override/Makefile
tests/regression/ust/type-declarations/Makefile
tests/regression/ust/rotation-destroy-flush/Makefile
+ tests/regression/ust/blocking/Makefile
tests/stress/Makefile
tests/unit/Makefile
tests/unit/ini_config/Makefile
diff --git a/tests/fast_regression b/tests/fast_regression
index 23211f4..bbce068 100644
--- a/tests/fast_regression
+++ b/tests/fast_regression
@@ -29,6 +29,7 @@ regression/ust/python-logging/test_python_logging
regression/ust/getcpu-override/test_getcpu_override
regression/ust/clock-override/test_clock_override
regression/ust/rotation-destroy-flush/test_rotation_destroy_flush
+regression/ust/blocking/test_blocking
regression/ust/test_event_basic
regression/ust/test_event_tracef
regression/ust/test_event_perf
diff --git a/tests/regression/ust/Makefile.am b/tests/regression/ust/Makefile.am
index 7686251..06cf97a 100644
--- a/tests/regression/ust/Makefile.am
+++ b/tests/regression/ust/Makefile.am
@@ -3,7 +3,7 @@ SUBDIRS = nprocesses high-throughput low-throughput before-after multi-session \
overlap buffers-pid linking daemon exit-fast fork libc-wrapper \
periodical-metadata-flush java-jul java-log4j python-logging \
getcpu-override clock-override type-declarations \
- rotation-destroy-flush
+ rotation-destroy-flush blocking
if HAVE_OBJCOPY
SUBDIRS += baddr-statedump ust-dl
diff --git a/tests/regression/ust/blocking/Makefile.am b/tests/regression/ust/blocking/Makefile.am
new file mode 100644
index 0000000..178cc45
--- /dev/null
+++ b/tests/regression/ust/blocking/Makefile.am
@@ -0,0 +1,16 @@
+noinst_SCRIPTS = test_blocking
+EXTRA_DIST = test_blocking
+
+all-local:
+ @if [ x"$(srcdir)" != x"$(builddir)" ]; then \
+ for script in $(EXTRA_DIST); do \
+ cp -f $(srcdir)/$$script $(builddir); \
+ done; \
+ fi
+
+clean-local:
+ @if [ x"$(srcdir)" != x"$(builddir)" ]; then \
+ for script in $(EXTRA_DIST); do \
+ rm -f $(builddir)/$$script; \
+ done; \
+ fi
diff --git a/tests/regression/ust/blocking/test_blocking b/tests/regression/ust/blocking/test_blocking
new file mode 100755
index 0000000..a856046
--- /dev/null
+++ b/tests/regression/ust/blocking/test_blocking
@@ -0,0 +1,155 @@
+#!/bin/bash
+#
+# Copyright (C) - 2015 Jonathan Rajotte <jonathan.rajotte-julien at efficios.com>
+# Copyright (C) - 2016 Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
+#
+# This library is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation; version 2.1 of the License.
+#
+# This library 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 Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+TEST_DESC="UST - Blocking mode"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/../../..
+SESSION_NAME="blocking"
+
+TESTAPP_PATH="$TESTDIR/utils/testapp"
+TESTAPP_NAME="gen-ust-events"
+TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
+EVENT_NAME="tp:tptest"
+
+NUM_TESTS=35
+
+source $TESTDIR/utils/utils.sh
+
+# MUST set TESTDIR before calling those functions
+# Run app on CPU 0 to ensure we only write in a single ring buffer.
+function run_app()
+{
+ taskset 0x00000001 $TESTAPP_BIN $NUM_EVENT
+ ok $? "Application done"
+}
+
+function test_ust_implicit_no_blocking()
+{
+ NUM_EVENT=500000
+ diag "UST implicit non-blocking mode (default): will hang if fails"
+
+ # Test without the plugin
+ start_lttng_sessiond
+ create_lttng_session_no_output $SESSION_NAME
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ ok 0 "Does not hang"
+}
+
+function test_ust_explicit_no_blocking()
+{
+ NUM_EVENT=500000
+ diag "UST explicit non-blocking mode: will hang if fails"
+
+ # Test without the plugin
+ start_lttng_sessiond
+ create_lttng_session_no_output $SESSION_NAME
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ LTTNG_UST_BLOCKING_RETRY_TIMEOUT=0 run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ ok 0 "Does not hang"
+}
+
+function test_ust_timeout_no_blocking()
+{
+ NUM_EVENT=12500
+ diag "UST 1ms timeout retry mode: will hang if fails"
+
+ start_lttng_sessiond
+ create_lttng_session_no_output $SESSION_NAME
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ # retry timeout 1ms
+ LTTNG_UST_BLOCKING_RETRY_TIMEOUT=1 run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ ok 0 "Does not hang"
+}
+
+function test_ust_snapshot_no_blocking()
+{
+ NUM_EVENT=500000
+ diag "UST blocking mode: don't block in snapshot mode"
+
+ # Test without the plugin
+ start_lttng_sessiond
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH --snapshot
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ ok 0 "Does not hang"
+}
+
+function test_ust_blocking_no_discard()
+{
+ NUM_EVENT=500000
+ diag "UST blocking mode: no event discarded"
+
+ # Test without the plugin
+ start_lttng_sessiond
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ # infinite retry timeout
+ LTTNG_UST_BLOCKING_RETRY_TIMEOUT=-1 run_app
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ nr_events=$(babeltrace $TRACE_PATH 2>/dev/null | wc -l)
+
+ test $nr_events -eq $NUM_EVENT
+ ok $? "No event lost with UST blocking mode: found $nr_events expect $NUM_EVENT"
+}
+
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+TESTS=(
+ "test_ust_implicit_no_blocking"
+ "test_ust_explicit_no_blocking"
+ "test_ust_timeout_no_blocking"
+ "test_ust_snapshot_no_blocking"
+ "test_ust_blocking_no_discard"
+)
+
+TEST_COUNT=${#TESTS[@]}
+i=0
+
+while [ "$i" -lt "$TEST_COUNT" ]; do
+
+ TRACE_PATH=$(mktemp -d)
+
+ # Execute test
+ ${TESTS[$i]}
+
+ rm -rf $TRACE_PATH
+
+ let "i++"
+done
--
2.1.4
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