From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Zhijian <lizhijian@cn.fujitsu.com>, <mingo@redhat.com>,
<shuah@kernel.org>, <linux-kselftest@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Philip Li <philip.li@intel.com>,
kernel test robot <lkp@intel.com>
Subject: Re: [PATCH] kselftests: ftrace: limit the executing time by reading from cached trace
Date: Thu, 21 Oct 2021 09:31:31 +0900 [thread overview]
Message-ID: <20211021093131.affc348280aba040f76f769e@kernel.org> (raw)
In-Reply-To: <20211020101659.42360147@gandalf.local.home>
On Wed, 20 Oct 2021 10:16:59 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> On Wed, 20 Oct 2021 11:55:22 +0900
> Masami Hiramatsu <mhiramat@kernel.org> wrote:
>
> > --- a/tools/testing/selftests/ftrace/test.d/functions
> > +++ b/tools/testing/selftests/ftrace/test.d/functions
> > @@ -124,6 +124,12 @@ initialize_ftrace() { # Reset ftrace to initial-state
> > [ -f uprobe_events ] && echo > uprobe_events
> > [ -f synthetic_events ] && echo > synthetic_events
> > [ -f snapshot ] && echo 0 > snapshot
> > +
> > +# Stop tracing while reading the trace file by default, to prevent
> > +# the test results while checking it and to avoid taking a long time
> > +# to check the result.
> > + [ -f options/pause-on-trace ] && echo 1 > options/pause-on-trace
> > +
>
> Is there a way we can save the previous setting and put it back on reset?
No, since each testcase must be run under the clean state. Would we need to
recover the settings?
Thank you,
>
> -- Steve
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2021-10-21 0:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-18 13:26 [PATCH] kselftests: ftrace: limit the executing time by reading from cached trace Li Zhijian
2021-10-19 2:16 ` Steven Rostedt
2021-10-20 2:20 ` Masami Hiramatsu
2021-10-20 2:34 ` Steven Rostedt
2021-10-20 2:55 ` Masami Hiramatsu
2021-10-20 4:10 ` lizhijian
2021-10-20 14:16 ` Steven Rostedt
2021-10-21 0:31 ` Masami Hiramatsu [this message]
2021-10-26 2:17 ` Steven Rostedt
2021-10-26 12:13 ` Masami Hiramatsu
2021-10-26 13:15 ` Steven Rostedt
2021-10-26 14:13 ` Masami Hiramatsu
2021-10-26 15:16 ` Steven Rostedt
2021-10-26 23:19 ` Masami Hiramatsu
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