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| author | Tomas Glozar <tglozar@redhat.com> | 2026-04-23 15:05:52 +0200 |
|---|---|---|
| committer | Tomas Glozar <tglozar@redhat.com> | 2026-05-18 11:00:51 +0200 |
| commit | 7f7ad23bced9a50d0a7115b1c9757d44325be3c2 (patch) | |
| tree | f69ecd9c93797613260f4ac45b6fe90e15347057 /tools/tracing/rtla | |
| parent | d18fd5a34ff3a2628f38af55f276b7377ee6dc5a (diff) | |
| download | linux-next-7f7ad23bced9a50d0a7115b1c9757d44325be3c2.tar.gz linux-next-7f7ad23bced9a50d0a7115b1c9757d44325be3c2.zip | |
rtla/tests: Check -c/--cpus thread affinity
RTLA runtime tests verify the -c/--cpus options, but do not check
whether the correct affinity is actually applied.
Add a script named check-cpus.sh that retrieves the affinity of all
workload threads and use it to check the -c/--cpus option for both
osnoise and timerlat tools.
Also add missing -c/--cpus test for osnoise.
Reviewed-by: Wander Lairson Costa <wander@redhat.com>
Link: https://lore.kernel.org/r/20260423130558.882022-4-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Diffstat (limited to 'tools/tracing/rtla')
| -rw-r--r-- | tools/tracing/rtla/tests/osnoise.t | 2 | ||||
| -rwxr-xr-x | tools/tracing/rtla/tests/scripts/check-cpus.sh | 9 | ||||
| -rw-r--r-- | tools/tracing/rtla/tests/timerlat.t | 4 |
3 files changed, 13 insertions, 2 deletions
diff --git a/tools/tracing/rtla/tests/osnoise.t b/tools/tracing/rtla/tests/osnoise.t index ed6ff0cc3329..5edffb23981b 100644 --- a/tools/tracing/rtla/tests/osnoise.t +++ b/tools/tracing/rtla/tests/osnoise.t @@ -18,6 +18,8 @@ check_top_q_hist "verify the --trace param" \ "osnoise TOOL -s 30 -T 1 -t" 2 "Saving trace to osnoise_trace.txt" check "verify the --entries/-E param" \ "osnoise hist -P F:1 -c 0 -r 900000 -d 10s -b 10 -E 25" +check_top_q_hist "verify the -c/--cpus param" \ + "osnoise TOOL -P F:1 -c 0 -r 900000 -d 10s -S 1 --on-threshold shell,command=tests/scripts/check-cpus.sh" 2 "^Affinity of threads: 0$" # Test setting default period by putting an absurdly high period # and stopping on threshold. diff --git a/tools/tracing/rtla/tests/scripts/check-cpus.sh b/tools/tracing/rtla/tests/scripts/check-cpus.sh new file mode 100755 index 000000000000..0b016d4a7945 --- /dev/null +++ b/tools/tracing/rtla/tests/scripts/check-cpus.sh @@ -0,0 +1,9 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +. "$(dirname $0)/lib/get_workload_pids.sh" +echo -n "Affinity of threads: " +for pid in $(get_workload_pids) +do + echo -n $(taskset -c -p $pid | cut -d ':' -f 2) +done +echo diff --git a/tools/tracing/rtla/tests/timerlat.t b/tools/tracing/rtla/tests/timerlat.t index 765dffd9d42a..fb60022aaa64 100644 --- a/tools/tracing/rtla/tests/timerlat.t +++ b/tools/tracing/rtla/tests/timerlat.t @@ -39,8 +39,8 @@ check "print the auto-analysis if hits the stop tracing condition" \ "timerlat top --aa-only 5" 2 check_top_hist "disable auto-analysis" \ "timerlat TOOL -s 3 -T 10 -t --no-aa" 2 -check_top_hist "verify -c/--cpus" \ - "timerlat TOOL -c 0 -d 10s" +check_top_q_hist "verify -c/--cpus" \ + "timerlat TOOL -c 0 -d 10s -T 1 --on-threshold shell,command=tests/scripts/check-cpus.sh" 2 "^Affinity of threads: 0$" # Actions tests check_top_q_hist "trace output through -t" \ |