From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 22 Jun 2022 19:05:55 +0000 (-0400)
Subject: Tests: rotation: add a kernel size-based rotation test
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=34764ec838debdb5fdb59e178b31a44047ea7229;p=lttng-tools.git

Tests: rotation: add a kernel size-based rotation test

Change-Id: I035814dcbe5e74227f907bae300eacffd132d80f
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/tests/regression/tools/rotation/rotate_utils.sh b/tests/regression/tools/rotation/rotate_utils.sh
index 2803517f2..8ac2afab7 100644
--- a/tests/regression/tools/rotation/rotate_utils.sh
+++ b/tests/regression/tools/rotation/rotate_utils.sh
@@ -145,17 +145,18 @@ function rotate_timer_test ()
 	shopt -u extglob
 }
 
-function wait_for_archives ()
+function trace_until_n_archives ()
 {
-	local trace_path=$1
-	local target_archive_count=$2
+	local produce_events=$1
+	local trace_path=$2
+	local target_archive_count=$3
 	local archive_count=0
 
 	diag "Waiting for $target_archive_count size-based rotations to occur"
 	while [[ archive_count -lt $target_archive_count ]]
 	do
-		archive_count=$(find "$TRACE_PATH" -mindepth 2 -maxdepth 2 -type d -path "*archives*" | wc -l)
-		$TESTAPP_BIN -i 2000 -w 0 > /dev/null 2>&1
+		archive_count=$(find "$trace_path" -mindepth 2 -maxdepth 2 -type d -path "*archives*" | wc -l)
+		$produce_events 2000
 	done
 
 	[[ $archive_count -eq $target_archive_count ]]
diff --git a/tests/regression/tools/rotation/test_kernel b/tests/regression/tools/rotation/test_kernel
index 3b7b94fb1..62bc5c33d 100755
--- a/tests/regression/tools/rotation/test_kernel
+++ b/tests/regression/tools/rotation/test_kernel
@@ -12,7 +12,7 @@ EVENT_NAME="lttng_test_filter_event"
 
 TRACE_PATH=$(mktemp --tmpdir -d -t tmp.rotation_kernel_tracing.XXXXXX)
 
-NUM_TESTS=60
+NUM_TESTS=66
 
 source $TESTDIR/utils/utils.sh
 source $CURDIR/rotate_utils.sh
@@ -78,6 +78,29 @@ function test_kernel_streaming_timer ()
 	rotate_timer_test "${TRACE_PATH}/${HOSTNAME}/${SESSION_NAME}*/archives" 0
 }
 
+function produce_n_events ()
+{
+	local event_count=$1
+
+	echo -n $event_count > /proc/lttng-test-filter-event
+}
+
+function test_kernel_local_size ()
+{
+	diag "Rotate kernel local session every 2MiB"
+	local size_threshold=$((2 * 1024 * 1024))
+
+	diag "Test ust local with size-based session rotation per-uid"
+	create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+	enable_kernel_lttng_event_ok $SESSION_NAME $EVENT_NAME "channel0"
+	lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
+	start_lttng_tracing_ok $SESSION_NAME
+
+	trace_until_n_archives produce_n_events "$TRACE_PATH" 5
+
+	destroy_lttng_session_ok $SESSION_NAME
+}
+
 plan_tests $NUM_TESTS
 
 print_test_banner "$TEST_DESC"
@@ -97,7 +120,7 @@ skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_
 	start_lttng_sessiond
 	modprobe lttng-test
 
-	tests=( test_kernel_streaming test_kernel_local test_kernel_local_timer test_kernel_streaming_timer)
+	tests=( test_kernel_streaming test_kernel_local test_kernel_local_timer test_kernel_streaming_timer test_kernel_local_size )
 
 	for fct_test in ${tests[@]};
 	do
diff --git a/tests/regression/tools/rotation/test_ust b/tests/regression/tools/rotation/test_ust
index 7c52f34bc..aaeee4454 100755
--- a/tests/regression/tools/rotation/test_ust
+++ b/tests/regression/tools/rotation/test_ust
@@ -255,6 +255,13 @@ function test_incompatible_sessions ()
 	destroy_lttng_session_ok $SESSION_NAME
 }
 
+function produce_n_events ()
+{
+	local event_count=$1
+
+	$TESTAPP_BIN -i "$event_count" -w 0 > /dev/null 2>&1
+}
+
 function test_ust_local_size_uid ()
 {
 	diag "Rotate uid local session every 2MiB"
@@ -267,7 +274,7 @@ function test_ust_local_size_uid ()
 	lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
 	start_lttng_tracing_ok $SESSION_NAME
 
-	wait_for_archives "$TRACE_PATH" 5
+	trace_until_n_archives produce_n_events "$TRACE_PATH" 5
 
 	destroy_lttng_session_ok $SESSION_NAME
 }
@@ -284,7 +291,7 @@ function test_ust_local_size_pid ()
 	lttng_enable_rotation_size_ok $SESSION_NAME $size_threshold
 	start_lttng_tracing_ok $SESSION_NAME
 
-	wait_for_archives "$TRACE_PATH" 3
+	trace_until_n_archives produce_n_events "$TRACE_PATH" 3
 
 	destroy_lttng_session_ok $SESSION_NAME
 }