From: David Ahern <dsahern@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>,
linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@kernel.org>,
Jean Pihet <jean.pihet@linaro.org>,
Namhyung Kim <namhyung@kernel.org>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCHv2 00/18] perf tools: Factor ordered samples queue
Date: Thu, 19 Jun 2014 11:54:40 -0600 [thread overview]
Message-ID: <53A323E0.8040307@gmail.com> (raw)
In-Reply-To: <20140619103448.GA7619@krava.brq.redhat.com>
On 6/19/14, 4:34 AM, Jiri Olsa wrote:
>> I've skimmed through the patches. What happens if you are in the middle of a
>> round and the max queue size is reached?
>
> half of the queue (time half) is flushed to make some free space
right, I believe there will be scenarios where that will cause failures
with out of order timestamps.
David
next prev parent reply other threads:[~2014-06-19 17:54 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-18 14:58 [PATCHv2 00/18] perf tools: Factor ordered samples queue Jiri Olsa
2014-06-18 14:58 ` [PATCH 01/18] perf tools: Always force PERF_RECORD_FINISHED_ROUND event Jiri Olsa
2014-06-18 14:58 ` [PATCH 02/18] perf tools: Fix accounting of ordered samples queue Jiri Olsa
2014-06-18 14:58 ` [PATCH 03/18] perf tools: Rename ordered_samples to ordered_events Jiri Olsa
2014-06-18 14:58 ` [PATCH 04/18] perf tools: Rename ordered_events_queue members Jiri Olsa
2014-06-18 14:58 ` [PATCH 05/18] perf tools: Add ordered_events_(get|put) interface Jiri Olsa
2014-06-27 23:06 ` David Ahern
2014-06-29 16:39 ` Jiri Olsa
2014-06-29 16:50 ` David Ahern
2014-06-30 15:02 ` Arnaldo Carvalho de Melo
2014-06-30 15:03 ` Arnaldo Carvalho de Melo
2014-06-18 14:58 ` [PATCH 06/18] perf tools: Factor ordered_events_flush to be more generic Jiri Olsa
2014-06-18 14:58 ` [PATCH 07/18] perf tools: Limit ordered events queue size Jiri Olsa
2014-06-27 23:11 ` David Ahern
2014-06-30 17:58 ` Jiri Olsa
2014-06-18 14:58 ` [PATCH 08/18] perf tools: Flush ordered events in case of allocation failure Jiri Olsa
2014-06-27 23:07 ` David Ahern
2014-06-29 16:41 ` Jiri Olsa
2014-06-18 14:58 ` [PATCH 09/18] perf tools: Make perf_session_deliver_event global Jiri Olsa
2014-06-18 14:58 ` [PATCH 10/18] perf tools: Create ordered-events object Jiri Olsa
2014-06-18 14:58 ` [PATCH 11/18] perf tools: Use list_move in ordered_event_put function Jiri Olsa
2014-06-18 14:58 ` [PATCH 12/18] perf tools: Add ordered_events_queue_init function Jiri Olsa
2014-06-18 14:58 ` [PATCH 13/18] perf tools: Add ordered_events_queue_free function Jiri Olsa
2014-06-18 14:58 ` [PATCH 14/18] perf tools: Add perf_config_u64 function Jiri Olsa
2014-06-27 23:08 ` David Ahern
2014-06-29 16:44 ` Jiri Olsa
2014-06-18 14:58 ` [PATCH 15/18] perf tools: Add report.queue-size config file option Jiri Olsa
2014-06-18 14:58 ` [PATCH 16/18] perf tools: Add debug prints for ordered events queue Jiri Olsa
2014-06-28 2:52 ` David Ahern
2014-06-29 16:46 ` Jiri Olsa
2014-06-29 16:52 ` David Ahern
2014-06-18 14:58 ` [PATCH 17/18] perf tools: Limit the ordered events queue by default to 100MB Jiri Olsa
2014-06-18 14:58 ` [PATCH 18/18] perf tools: Allow out of order messages in forced flush Jiri Olsa
2014-06-18 19:44 ` [PATCHv2 00/18] perf tools: Factor ordered samples queue David Ahern
2014-06-19 10:34 ` Jiri Olsa
2014-06-19 17:54 ` David Ahern [this message]
2014-06-20 7:15 ` Jiri Olsa
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