From: Jiri Olsa <jolsa@redhat.com>
To: Jin Yao <yao.jin@linux.intel.com>
Cc: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
mingo@redhat.com, alexander.shishkin@linux.intel.com,
Linux-kernel@vger.kernel.org, ak@linux.intel.com,
kan.liang@intel.com, yao.jin@intel.com
Subject: Re: [PATCH v3 1/6] perf header: Record first sample time and last sample time in perf file header
Date: Mon, 2 Oct 2017 13:50:57 +0200 [thread overview]
Message-ID: <20171002115057.GA16128@krava> (raw)
In-Reply-To: <1506602721-3784-2-git-send-email-yao.jin@linux.intel.com>
On Thu, Sep 28, 2017 at 08:45:16PM +0800, Jin Yao wrote:
SNIP
> + return ret;
> +
> + return do_write(ff, &evlist->last_sample_time,
> + sizeof(evlist->last_sample_time));
> +}
> +
> static void print_hostname(struct feat_fd *ff, FILE *fp)
> {
> fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);
> @@ -1506,6 +1520,19 @@ static void print_group_desc(struct feat_fd *ff, FILE *fp)
> }
> }
>
> +static void print_sample_time(struct feat_fd *ff, FILE *fp)
> +{
> + struct perf_session *session;
> +
> + session = container_of(ff->ph, struct perf_session, header);
> +
> + fprintf(fp, "# time of first sample : %" PRIu64 "\n",
> + session->evlist->first_sample_time);
> +
> + fprintf(fp, "# time of last sample : %" PRIu64 "\n",
> + session->evlist->last_sample_time);
this could be done in some follow up patch, but could we
display this in some human readable way..
# time of first sample : 218077073264620
# time of last sample : 218077073395488
jirka
next prev parent reply other threads:[~2017-10-02 11:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-28 12:45 [PATCH v3 0/6] perf report/script: Support percent and multiple range in --time option Jin Yao
2017-09-28 12:45 ` [PATCH v3 1/6] perf header: Record first sample time and last sample time in perf file header Jin Yao
2017-10-02 11:50 ` Jiri Olsa [this message]
2017-10-02 12:52 ` Jin, Yao
2017-10-02 13:00 ` Jiri Olsa
2017-10-02 13:48 ` Jin, Yao
2017-10-02 14:15 ` Jiri Olsa
2017-09-28 12:45 ` [PATCH v3 2/6] perf record: Get the first sample time and last sample time Jin Yao
2017-09-28 12:45 ` [PATCH v3 3/6] perf util: Create function to parse time percent Jin Yao
2017-09-28 12:45 ` [PATCH v3 4/6] perf util: Create function to perform multiple time range checking Jin Yao
2017-09-28 12:45 ` [PATCH v3 5/6] perf report: support time percent and multiple time ranges Jin Yao
2017-10-02 11:52 ` Jiri Olsa
2017-10-02 12:57 ` Jin, Yao
2017-09-28 12:45 ` [PATCH v3 6/6] perf script: " Jin Yao
2017-10-02 11:58 ` Jiri Olsa
2017-10-02 13:41 ` Jin, Yao
2017-10-02 14:21 ` Jiri Olsa
2017-10-02 14:28 ` Jin, Yao
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