linux-kernel - Re: [PATCH -tip v3 3/9] selftests: ftrace: Add --quiet option not to show error logs on screen

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Date:   Tue, 22 Nov 2016 14:44:59 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Shuah Khan <shuahkhan@...il.com>, Shuah Khan <shuah@...nel.org>,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH -tip v3 3/9] selftests: ftrace: Add --quiet option not
 to show error logs on screen

On Wed, 16 Nov 2016 17:13:17 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Since the verbose error logs scrolls out previous test results
> --quiet option suppress to show such message.

I wonder if -q should be default, and -v be what we have, and -vv be
verbose?

-- Steve

> 
> e.g.
>  # ./ftracetest -q
> === Ftrace unit tests ===
> [1] Basic trace file check	[PASS]
> [2] Basic test for tracers	[PASS]
> [3] Basic trace clock test	[PASS]
> [4] Basic event tracing check	[PASS]
> [5] event tracing - enable/disable with event level files	[PASS]
> [6] event tracing - restricts events based on pid	[PASS]
> [7] event tracing - enable/disable with subsystem level files	[PASS]
> [8] event tracing - enable/disable with top level files	[PASS]
> [9] ftrace - function graph filters with stack tracer	[UNSUPPORTED]
> [10] ftrace - function graph filters	[UNSUPPORTED]
> [11] ftrace - function profiler with function tracing	[UNSUPPORTED]
> [12] Test creation and deletion of trace instances while setting an event
> 	[PASS]
> [13] Test creation and deletion of trace instances	[PASS]
> [14] Kprobe dynamic event - adding and removing	[UNSUPPORTED]
> [15] Kprobe dynamic event - busy event check	[UNSUPPORTED]
> [16] Kprobe dynamic event with arguments	[UNSUPPORTED]
> [17] Kprobe dynamic event with function tracer	[UNSUPPORTED]
> [18] Kretprobe dynamic event with arguments	[UNSUPPORTED]
> [19] event trigger - test event enable/disable trigger	[PASS]
> [20] event trigger - test trigger filter	[PASS]
> [21] event trigger - test histogram modifiers	[UNSUPPORTED]
> [22] event trigger - test histogram trigger	[UNSUPPORTED]
> [23] event trigger - test multiple histogram triggers	[UNSUPPORTED]
> [24] event trigger - test snapshot-trigger	[FAIL]
> [25] event trigger - test stacktrace-trigger	[PASS]
> [26] event trigger - test traceon/off trigger	[PASS]
>