X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=tests%2Fregression%2Ftools%2Fsnapshots%2Ftest_kernel;h=870c437b217fc2ed0eb339628fff428e220312fd;hb=2a05e025c52eda43f8ebafdbe6f47dc0e80efa77;hp=ff563100b2bf40c0796613298811fd9f2e780ebc;hpb=9c8a396496a28702730192ae1ded06105c54c5dc;p=lttng-tools.git diff --git a/tests/regression/tools/snapshots/test_kernel b/tests/regression/tools/snapshots/test_kernel index ff563100b..870c437b2 100755 --- a/tests/regression/tools/snapshots/test_kernel +++ b/tests/regression/tools/snapshots/test_kernel @@ -1,31 +1,20 @@ #!/bin/bash # -# Copyright (C) - 2013 Julien Desfossez +# Copyright (C) 2013 Julien Desfossez # -# 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 +# SPDX-License-Identifier: LGPL-2.1-only + TEST_DESC="Snapshots - Kernel tracing" CURDIR=$(dirname $0)/ TESTDIR=$CURDIR/../../.. EVENT_NAME="sched_switch" -PID_RELAYD=0 SESSION_NAME="" CHANNEL_NAME="snapchan" -TRACE_PATH=$(mktemp -d) +TRACE_PATH=$(mktemp -d -t tmp.test_snapshots_kernel_trace_path.XXXXXX) -NUM_TESTS=2060 +NUM_TESTS=2061 source $TESTDIR/utils/utils.sh @@ -36,18 +25,17 @@ function test_kernel_local_snapshot () enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH lttng_snapshot_record $SESSION_NAME stop_lttng_tracing_ok $SESSION_NAME destroy_lttng_session_ok $SESSION_NAME # Validate test + validate_trace_path_kernel_snapshot "$TRACE_PATH" "" "snapshot-1" 0 "" validate_trace $EVENT_NAME $TRACE_PATH/ if [ $? -eq 0 ]; then # Only delete if successful rm -rf $TRACE_PATH - else - break fi } @@ -59,7 +47,7 @@ function test_kernel_local_snapshot_after_stop () lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME stop_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH lttng_snapshot_record $SESSION_NAME destroy_lttng_session_ok $SESSION_NAME @@ -68,8 +56,6 @@ function test_kernel_local_snapshot_after_stop () if [ $? -eq 0 ]; then # Only delete if successful rm -rf $TRACE_PATH - else - break fi } @@ -83,7 +69,7 @@ function test_kernel_local_snapshot_append_to_metadata () enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME lttng_enable_kernel_event $SESSION_NAME $EVENT1 $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH # first snapshot with only 1 event lttng_snapshot_record $SESSION_NAME @@ -91,8 +77,6 @@ function test_kernel_local_snapshot_append_to_metadata () if [ $? -eq 0 ]; then # Only delete if successful rm -rf $TRACE_PATH - else - break fi diag "Adding event $EVENT2" @@ -104,33 +88,33 @@ function test_kernel_local_snapshot_append_to_metadata () if [ $? -eq 0 ]; then # Only delete if successful rm -rf $TRACE_PATH - else - break fi stop_lttng_tracing_ok $SESSION_NAME destroy_lttng_session_ok $SESSION_NAME } -function true_loop_cpu0() +function generate_filter_events_cpu0() { - # Generate many system call events (fill buffers) on CPU 0 - for a in $(seq 1 $1); do - taskset 0x00000001 /bin/true; - done + # Generate many events (fill buffers) on a single CPU + taskset --cpu-list "$(get_any_available_cpu)" /bin/echo -n "$1" > /proc/lttng-test-filter-event 2> /dev/null } function test_kernel_local_snapshot_discard () { diag "Test local kernel snapshots with small discard buffers" + + local event_name="lttng_test_filter_event" + + modprobe lttng-test create_lttng_session_no_output $SESSION_NAME enable_lttng_mmap_discard_small_kernel_channel $SESSION_NAME \ $CHANNEL_NAME - lttng_enable_kernel_syscall_ok $SESSION_NAME -a $CHANNEL_NAME + enable_kernel_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH - true_loop_cpu0 10000 + generate_filter_events_cpu0 10000 # Take first snapshot, remember first line. lttng_snapshot_record $SESSION_NAME @@ -139,7 +123,8 @@ function test_kernel_local_snapshot_discard () rm -rf $TRACE_PATH - true_loop_cpu0 10000 + # Fill CPU 0's buffer and overwrite previous contents + generate_filter_events_cpu0 10000 # Take 2nd snapshot, compare first line. In discard mode, they # should still be the same. @@ -149,26 +134,31 @@ function test_kernel_local_snapshot_discard () rm -rf $TRACE_PATH if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then - fail "First snapshot event do not match." + fail "First snapshot event do not match" else - pass "First snapshot event match." + pass "First snapshot event match" fi stop_lttng_tracing_ok $SESSION_NAME destroy_lttng_session_ok $SESSION_NAME + modprobe --remove lttng-test } function test_kernel_local_snapshot_overwrite_small_buffers () { diag "Test local kernel snapshot with small overwrite buffers" + + local event_name="lttng_test_filter_event" + + modprobe lttng-test create_lttng_session_no_output $SESSION_NAME enable_lttng_mmap_overwrite_small_kernel_channel $SESSION_NAME \ $CHANNEL_NAME - lttng_enable_kernel_syscall_ok $SESSION_NAME -a $CHANNEL_NAME + enable_kernel_lttng_event_ok $SESSION_NAME $event_name $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH - true_loop_cpu0 10000 + generate_filter_events_cpu0 10000 # Take first snapshot, remember first line. lttng_snapshot_record $SESSION_NAME @@ -177,7 +167,8 @@ function test_kernel_local_snapshot_overwrite_small_buffers () rm -rf $TRACE_PATH - true_loop_cpu0 10000 + # Fill CPU 0's buffer and overwrite previous contents + generate_filter_events_cpu0 10000 # Take 2nd snapshot, compare first line. In overwrite mode, they # WILL be different. @@ -187,13 +178,14 @@ function test_kernel_local_snapshot_overwrite_small_buffers () rm -rf $TRACE_PATH if [ x"$FIRST_LINE" != x"$FIRST_LINE_2" ]; then - pass "First snapshot event do not match." + pass "First snapshot event do not match" else - fail "First snapshot event match." + fail "First snapshot event match" fi stop_lttng_tracing_ok $SESSION_NAME destroy_lttng_session_ok $SESSION_NAME + modprobe --remove lttng-test } function test_kernel_1000_local_snapshots () @@ -205,7 +197,7 @@ function test_kernel_1000_local_snapshots () enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME start_lttng_tracing_ok $SESSION_NAME - lttng_snapshot_add_output_ok $SESSION_NAME $TRACE_PATH + lttng_snapshot_add_output_ok $SESSION_NAME file://$TRACE_PATH for i in $(seq 1 $NB_SNAP); do diag "Snapshot $i/$NB_SNAP" rm -rf $TRACE_PATH/snapshot/* 2>/dev/null @@ -227,13 +219,16 @@ plan_tests $NUM_TESTS print_test_banner "$TEST_DESC" +bail_out_if_no_babeltrace + + if [ "$(id -u)" == "0" ]; then isroot=1 else isroot=0 fi -skip $isroot "Root access is needed. Skipping all kernel snapshot tests." $NUM_TESTS || +skip $isroot "Root access is needed. Skipping all kernel snapshot tests" $NUM_TESTS || { validate_lttng_modules_present