Tests: use CPU ids from online ranges

[lttng-tools.git] / tests / regression / tools / tracefile-limits / test_tracefile_count

diff --git a/tests/regression/tools/tracefile-limits/test_tracefile_count b/tests/regression/tools/tracefile-limits/test_tracefile_count
index eb5d1a5f13c146aa78771414112d139f2c141bc9..9d6c2d9a80f4dbe1423136763eeb70c708d7a3eb 100755 (executable)
--- a/tests/regression/tools/tracefile-limits/test_tracefile_count
+++ b/tests/regression/tools/tracefile-limits/test_tracefile_count
@@ -17,7 +17,6 @@ TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
 STATS_BIN="$TESTDIR/utils/babelstats.pl"
 NUM_TESTS=74
 
-NUM_CPUS=$(nproc)
 PAGE_SIZE=$(getconf PAGE_SIZE)
 TRACEFILE_SIZE=$PAGE_SIZE
 
@@ -27,6 +26,13 @@ if [ ! -x "$TESTAPP_BIN" ]; then
        BAIL_OUT "No UST events binary detected."
 fi
 
+function pick_random_cpuid ()
+{
+       local cpuids
+       read -r -a cpuids <<< "$(get_online_cpus)"
+       echo "${cpuids[ $RANDOM % ${#cpuids[@]} ]}"
+}
+
 function enable_lttng_channel_count_limit ()
 {
        sess_name="$1"
@@ -82,7 +88,7 @@ function test_tracefile_count_limit ()
        local count_limit="$1"
 
        local channel_name="channel"
-       local cpuno=$((RANDOM % NUM_CPUS))
+       local cpuno=$(pick_random_cpuid)
        local event_name="tp:tptest"
        local expected_size=$((count_limit * TRACEFILE_SIZE))
        local num_iter=100000