Fix: Wrong assumption about possible CPUs

[lttng-tools.git] / tests / regression / tools / snapshots / ust_test

diff --git a/tests/regression/tools/snapshots/ust_test b/tests/regression/tools/snapshots/ust_test
index 26cfbf88e9a8961a696eb128261d7d045be700c8..d1ba07071636001d51a99e6cb7cfa43d62ea607e 100755 (executable)
--- a/tests/regression/tools/snapshots/ust_test
+++ b/tests/regression/tools/snapshots/ust_test
@@ -298,14 +298,15 @@ function test_ust_local_snapshot_small_overwrite_buffers ()
 function test_ust_local_snapshot_max_size ()
 {
        local possible_cpus
-       local online_cpus
+       local cpus_list
        local subbuf_size
        local subbuf_count
        local snapshot_max_size
        local channel_max_size_per_cpu
 
+       IFS=" " read -r -a cpus_list <<< "$(get_exposed_cpus_list)"
+
        possible_cpus=$(get_possible_cpus_count)
-       online_cpus=$(conf_proc_count)
        subbuf_size=$(getconf PAGE_SIZE)
        subbuf_count=8
        snapshot_max_size=$((subbuf_size*possible_cpus))
@@ -325,9 +326,10 @@ function test_ust_local_snapshot_max_size ()
 
        # Fill all ring-buffers of the channel; assuming event size of at least one
        # byte
-       for cpu in $(seq "$online_cpus");
+       for cpu in "${cpus_list[@]}";
        do
-               taskset --cpu-list $((cpu-1)) "$TESTAPP_BIN" \
+               diag "setting affinity to $cpu"
+               taskset --cpu-list "$cpu" "$TESTAPP_BIN" \
                        --iter "$channel_max_size_per_cpu"
        done
        diag "Filled channel ring-buffers"