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From: Jiri Olsa <jolsa@redhat.com>
To: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Andi Kleen <ak@linux.intel.com>,
	linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v7 2/2]: perf record: enable asynchronous trace writing
Date: Thu, 6 Sep 2018 13:04:23 +0200	[thread overview]
Message-ID: <20180906110423.GH8248@krava> (raw)
In-Reply-To: <dc18a621-4464-e5a5-ce10-5f7b2f6a9176@linux.intel.com>

On Wed, Sep 05, 2018 at 10:39:25AM +0300, Alexey Budankov wrote:

SNIP

> +		} else if (errno != EAGAIN) {
> +			cblock->aio_fildes = -1;
> +			pr_err("failed to queue perf data, error: %m\n");
> +			break;
> +		}
> +	} while (1);
> +
> +	return rc;
> +}
> +
> +static int record__aio_sync(struct perf_mmap *md)
> +{

this is almost identical to record__aio_sync function,
it looks like we should be able to do the sync with
single function.. for both the in-between syncs and
the final one

jirka

  parent reply	other threads:[~2018-09-06 11:04 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-05  7:16 [PATCH v7 0/2]: perf: reduce data loss when profiling highly parallel CPU bound workloads Alexey Budankov
2018-09-05  7:19 ` [PATCH v7 1/2]: perf util: map data buffer for preserving collected data Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa
2018-09-06 11:50     ` Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa
2018-09-06 11:54     ` Alexey Budankov
2018-09-05  7:39 ` [PATCH v7 2/2]: perf record: enable asynchronous trace writing Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa
2018-09-06 11:57     ` Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa
2018-09-06 11:58     ` Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa
2018-09-06 11:59     ` Alexey Budankov
2018-09-06 11:04   ` Jiri Olsa [this message]
2018-09-06 12:09     ` Alexey Budankov
2018-09-05 11:28 ` [PATCH v7 0/2]: perf: reduce data loss when profiling highly parallel CPU bound workloads Jiri Olsa
2018-09-05 17:37   ` Alexey Budankov
2018-09-05 18:51     ` Arnaldo Carvalho de Melo
2018-09-06  6:03       ` Alexey Budankov
2018-09-06  8:14         ` Jiri Olsa
2018-09-06  8:20           ` Alexey Budankov
2018-09-06  6:59       ` Alexey Budankov
2018-09-06  6:57   ` Alexey Budankov

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