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From: Peter Zijlstra <peterz@infradead.org>
To: Ze Gao <zegao2021@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ian Rogers <irogers@google.com>, Ingo Molnar <mingo@redhat.com>,
	Jiri Olsa <jolsa@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org,
	linux-trace-devel@vger.kernel.org, Ze Gao <zegao@tencent.com>
Subject: Re: [RFC PATCH v3 3/6] sched, tracing: add to report task state in symbolic chars
Date: Tue, 1 Aug 2023 13:45:45 +0200	[thread overview]
Message-ID: <20230801114545.GD79828@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20230801090124.8050-4-zegao@tencent.com>

On Tue, Aug 01, 2023 at 05:01:21PM +0800, Ze Gao wrote:
> @@ -233,6 +255,7 @@ TRACE_EVENT(sched_switch,
>  		__field(	pid_t,	prev_pid			)
>  		__field(	int,	prev_prio			)
>  		__field(	long,	prev_state			)
> +		__field(	char,	prev_state_char			)
>  		__array(	char,	next_comm,	TASK_COMM_LEN	)
>  		__field(	pid_t,	next_pid			)
>  		__field(	int,	next_prio			)

And this again will wreck everybody that consumes the raw tracepoint
without looking at tracefs.

  parent reply	other threads:[~2023-08-01 11:46 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-01  9:01 [RFC PATCH v3 0/6] add to report task state in symbolic chars from sched tracepoint Ze Gao
2023-08-01  9:01 ` [RFC PATCH v3 1/6] perf sched: sync state char array with the kernel Ze Gao
2023-08-01  9:01 ` [RFC PATCH v3 2/6] perf sched: reorganize sched-out task state report code Ze Gao
2023-08-01  9:01 ` [RFC PATCH v3 3/6] sched, tracing: add to report task state in symbolic chars Ze Gao
2023-08-01 11:34   ` Peter Zijlstra
2023-08-01 13:03     ` Ze Gao
2023-08-01 13:41       ` Peter Zijlstra
2023-08-02  3:03         ` Ze Gao
2023-08-01 11:45   ` Peter Zijlstra [this message]
2023-08-01 13:08     ` Ze Gao
2023-08-01 14:27     ` Steven Rostedt
2023-08-01  9:01 ` [RFC PATCH v3 4/6] sched, tracing: reorganize fields of switch event struct Ze Gao
2023-08-01 11:46   ` Peter Zijlstra
2023-08-01 13:16     ` Ze Gao
2023-08-01 14:33     ` Steven Rostedt
2023-08-02  3:06       ` Ze Gao
2023-08-01 14:16   ` Steven Rostedt
2023-08-02  3:07     ` Ze Gao
2023-08-01  9:01 ` [RFC PATCH v3 5/6] perf sched: prefer to use prev_state_char introduced in sched_switch Ze Gao
2023-08-01  9:01 ` [RFC PATCH v3 6/6] libtraceevent: " Ze Gao
2023-08-01 14:19   ` Steven Rostedt
2023-08-02  3:08     ` Ze Gao

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