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From: Howard Chu <howardchu95@gmail.com>
To: acme@kernel.org
Cc: mingo@redhat.com, namhyung@kernel.org, mark.rutland@arm.com,
	alexander.shishkin@linux.intel.com, jolsa@kernel.org,
	irogers@google.com, adrian.hunter@intel.com,
	peterz@infradead.org, kan.liang@linux.intel.com,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	Howard Chu <howardchu95@gmail.com>
Subject: [PATCH v1 3/5] perf test trace: Stop tracing hrtimer_init event in trace enum test
Date: Sat, 17 May 2025 09:32:28 -0700	[thread overview]
Message-ID: <20250517163230.1237469-4-howardchu95@gmail.com> (raw)
In-Reply-To: <20250517163230.1237469-1-howardchu95@gmail.com>

The event 'timer:hrtimer_setup' is relatively new, for older kernels,
perf trace enum tests won't run as the event 'timer:hrtimer_setup'
cannot be found.

It was originally called 'timer:hrtimer_init', before being renamed in:

commit 244132c4e577 ("tracing/timers: Rename the hrtimer_init event to hrtimer_setup")

Using timer:hrtimer_start should be enough for current testing, and
hopefully 'start' won't be renamed in the future.

Before:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 786187
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint timer:hrtimer_setup,timer:hrtimer_start
    [tracepoint failure] Failed to trace timer:hrtimer_setup,timer:hrtimer_start tracepoint, output:
    event syntax error: 'timer:hrtimer_setup,timer:hrtimer_start'
			 \___ unknown tracepoint

    Error:  File /sys/kernel/tracing//events/timer/hrtimer_setup not found.
    Hint:   Perhaps this kernel misses some CONFIG_ setting to enable this feature?.

    Run 'perf list' for a list of valid events

     Usage: perf trace [<options>] [<command>]
	or: perf trace [<options>] -- <command> [<options>]
	or: perf trace record [<options>] [<command>]
	or: perf trace record [<options>] -- <command> [<options>]

	-e, --event <event>   event/syscall selector. use 'perf list' to list available events
    ---- end(-1) ----
    107: perf trace enum augmentation tests                              : FAILED!

After:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 808547
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint timer:hrtimer_start
    ---- end(0) ----
    107: perf trace enum augmentation tests                              : Ok

Signed-off-by: Howard Chu <howardchu95@gmail.com>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index cd4c8754f5d4..da6903108c8b 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -5,7 +5,7 @@
 err=0
 
 syscall="landlock_add_rule"
-non_syscall="timer:hrtimer_setup,timer:hrtimer_start"
+non_syscall="timer:hrtimer_start"
 
 TESTPROG="perf test -w landlock"
 
-- 
2.45.2


  parent reply	other threads:[~2025-05-17 16:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-17 16:32 [PATCH v1 0/5] perf test trace: Reduce test failures and make error messages verbose Howard Chu
2025-05-17 16:32 ` [PATCH v1 1/5] perf test trace: Use shell's -f flag to check if vmlinux exists Howard Chu
2025-05-17 16:32 ` [PATCH v1 2/5] perf test trace: Remove set -e and print trace test's error messages Howard Chu
2025-05-18 17:36   ` Namhyung Kim
2025-05-18 18:14     ` Howard Chu
2025-05-17 16:32 ` Howard Chu [this message]
2025-05-17 16:32 ` [PATCH v1 4/5] perf test trace: Remove set -e for BTF general tests Howard Chu
2025-05-18 17:38   ` Namhyung Kim
2025-05-18 18:18     ` Howard Chu
2025-05-17 16:32 ` [PATCH v1 5/5] perf test trace BTF: Use --sort-events in " Howard Chu
2025-05-18 17:51   ` Namhyung Kim
2025-05-18 18:11     ` Howard Chu

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