From: Borislav Petkov <bp@alien8.de>
To: Robert Richter <rric@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Arnaldo Carvalho de Melo <acme@infradead.org>,
Jiri Olsa <jolsa@redhat.com>,
linux-kernel@vger.kernel.org,
Tomasz Nowicki <tomasz.nowicki@linaro.org>
Subject: Re: [PATCH v4 00/16] perf, persistent: Add persistent events
Date: Tue, 6 May 2014 20:50:50 +0200 [thread overview]
Message-ID: <20140506185050.GD25013@pd.tnic> (raw)
In-Reply-To: <20140506123907.GV32718@rric.localhost>
On Tue, May 06, 2014 at 02:39:07PM +0200, Robert Richter wrote:
> Creation of events basically does (function arguments are a bit pseudo
> code):
>
> attr.type = pmu_type;
> attr.config = event_config;
> event = perf_event_open(attr, cpu, ...);
> id = ioctl(event, PERF_EVENT_IOC_UNCLAIM, 0);
Remind me again pls why we decided for the CLAIM/UNCLAIM part? It is
very unintuitive. What was against we detach from the event (we're
implicitly attached to it in the normal case, when it is not persistent)
and then reattach?
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2014-05-06 18:50 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-07 15:04 [PATCH v4 00/16] perf, persistent: Add persistent events Jean Pihet
2014-04-07 15:04 ` [PATCH 01/16] perf, mmap: Factor out ring_buffer_detach_all() Jean Pihet
2014-04-07 15:04 ` [PATCH 02/16] perf, mmap: Factor out try_get_event()/put_event() Jean Pihet
2014-04-07 15:04 ` [PATCH 03/16] perf, mmap: Factor out perf_alloc/free_rb() Jean Pihet
2014-04-22 14:25 ` Peter Zijlstra
2014-04-07 15:04 ` [PATCH 04/16] perf, mmap: Factor out perf_get_fd() Jean Pihet
2014-04-22 14:27 ` Peter Zijlstra
2014-04-25 13:54 ` Robert Richter
2014-04-25 14:43 ` Peter Zijlstra
2014-04-25 14:52 ` Peter Zijlstra
2014-04-29 15:34 ` Robert Richter
2014-04-07 15:04 ` [PATCH 05/16] perf: Add persistent events Jean Pihet
2014-04-07 15:04 ` [PATCH 06/16] mce, x86: Enable " Jean Pihet
2014-04-07 15:04 ` [PATCH 07/16] perf, persistent: Implementing a persistent pmu Jean Pihet
2014-04-07 15:04 ` [PATCH 08/16] perf, persistent: Exposing persistent events using sysfs Jean Pihet
2014-04-07 15:04 ` [PATCH 09/16] perf, persistent: Use unique event ids Jean Pihet
2014-04-07 15:04 ` [PATCH 10/16] perf, persistent: Implement reference counter for events Jean Pihet
2014-04-07 15:04 ` [PATCH 11/16] perf, persistent: Dynamically resize list of sysfs entries Jean Pihet
2014-04-07 15:04 ` [PATCH 12/16] perf, persistent: ioctl functions to control persistency Jean Pihet
2014-04-07 15:04 ` [PATCH 13/16] perf tools: Rename flex conditions to avoid name conflicts Jean Pihet
2014-04-07 15:04 ` [PATCH 14/16] perf tools: Modify event parser to update event attribute by index Jean Pihet
2014-04-07 15:04 ` [PATCH 15/16] perf tools: Add attr<num> syntax to event parser Jean Pihet
2014-04-07 15:04 ` [PATCH 16/16] perf tools: Retry mapping buffers readonly on EACCES Jean Pihet
2014-04-17 12:44 ` [PATCH v4 00/16] perf, persistent: Add persistent events Jean Pihet
2014-04-17 12:50 ` Borislav Petkov
2014-04-17 13:17 ` Jean Pihet
2014-04-17 13:21 ` Borislav Petkov
2014-04-22 8:20 ` Jean Pihet
2014-04-22 10:07 ` Jean Pihet
2014-04-22 10:20 ` Borislav Petkov
2014-05-06 12:39 ` Robert Richter
2014-05-06 18:50 ` Borislav Petkov [this message]
2014-05-06 18:53 ` Borislav Petkov
2014-05-07 16:44 ` Robert Richter
2014-05-08 18:23 ` Borislav Petkov
2014-05-09 9:17 ` Robert Richter
2014-05-06 18:58 ` Borislav Petkov
2014-05-07 17:01 ` Robert Richter
2014-05-08 18:36 ` Borislav Petkov
2014-05-09 8:52 ` Robert Richter
2014-05-09 10:17 ` Borislav Petkov
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