From: Shaun Ruffell <sruffell@digium.com>
To: Venkatesh Pallipadi <venki@google.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Proper kernel irq time accounting -v4
Date: Thu, 14 Oct 2010 11:12:35 -0500 [thread overview]
Message-ID: <4CB72BF3.4030601@digium.com> (raw)
In-Reply-To: <1286237003-12406-1-git-send-email-venki@google.com>
On 10/04/2010 07:03 PM, Venkatesh Pallipadi wrote:
> Solution to (1) involves adding extra timing on irq entry/exit to
> get the fine granularity info and then exporting it to user.
> The following patchset addresses this problem in a way similar to [2][3].
> Keeps most of the code that does the timing generic
> (CONFIG_IRQ_TIME_ACCOUNTING), based off of sched_clock(). And adds support for
> this in x86. This time is not yet exported to userspace yet. Patch for that
> coming soon.
>
Would you be willing to share your thoughts on how you plan to export
this information to userspace?
I applied this set to one of my machines in hopes of seeing more
accurate hi time before I noticed that in the quoted paragraph you said
this is still forthcoming.
Thanks,
Shaun
next prev parent reply other threads:[~2010-10-14 16:42 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 0:03 Proper kernel irq time accounting -v4 Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 1/8] si time accounting accounts bh_disable'd time to si -v4 Venkatesh Pallipadi
2010-10-18 19:24 ` [tip:sched/core] sched: Fix softirq time accounting tip-bot for Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 2/8] Consolidate account_system_vtime extern declaration -v4 Venkatesh Pallipadi
2010-10-18 19:24 ` [tip:sched/core] sched: Consolidate account_system_vtime extern declaration tip-bot for Venkatesh Pallipadi
2010-10-18 19:27 ` [tip:sched/core] sched: Export account_system_vtime() tip-bot for Ingo Molnar
2010-10-05 0:03 ` [PATCH 3/8] Add a PF flag for ksoftirqd identification Venkatesh Pallipadi
2010-10-15 14:26 ` Peter Zijlstra
2010-10-15 14:46 ` Eric Dumazet
2010-10-18 19:25 ` [tip:sched/core] sched: " tip-bot for Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 4/8] Add IRQ_TIME_ACCOUNTING, finer accounting of irq time -v4 Venkatesh Pallipadi
2010-10-15 14:28 ` Peter Zijlstra
2010-10-18 19:25 ` [tip:sched/core] sched: Add IRQ_TIME_ACCOUNTING, finer accounting of irq time tip-bot for Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 5/8] x86: Add IRQ_TIME_ACCOUNTING in x86 -v4 Venkatesh Pallipadi
2010-10-15 14:38 ` Peter Zijlstra
2010-10-18 19:26 ` [tip:sched/core] x86: Add IRQ_TIME_ACCOUNTING tip-bot for Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 6/8] sched: Do not account irq time to current task -v4 Venkatesh Pallipadi
2010-10-18 19:26 ` [tip:sched/core] sched: Do not account irq time to current task tip-bot for Venkatesh Pallipadi
2010-11-29 8:45 ` Yong Zhang
2010-11-29 11:59 ` Peter Zijlstra
2010-11-29 14:22 ` Yong Zhang
2010-11-29 17:06 ` Raistlin
2010-11-30 5:57 ` Yong Zhang
2010-12-01 18:55 ` Venkatesh Pallipadi
2010-12-01 19:16 ` Peter Zijlstra
2010-10-05 0:03 ` [PATCH 7/8] sched: Remove irq time from available CPU power -v4 Venkatesh Pallipadi
2010-10-18 19:26 ` [tip:sched/core] sched: Remove irq time from available CPU power tip-bot for Venkatesh Pallipadi
2010-10-05 0:03 ` [PATCH 8/8] Call tick_check_idle before __irq_enter Venkatesh Pallipadi
2010-10-17 9:05 ` Yong Zhang
2010-10-18 9:15 ` Peter Zijlstra
2010-10-18 19:27 ` [tip:sched/core] sched: " tip-bot for Venkatesh Pallipadi
2010-10-12 19:00 ` Proper kernel irq time accounting -v4 Venkatesh Pallipadi
2010-10-14 16:12 ` Shaun Ruffell [this message]
2010-10-14 18:19 ` Venkatesh Pallipadi
2010-10-14 20:00 ` Shaun Ruffell
2010-10-15 15:11 ` Peter Zijlstra
2010-10-15 15:27 ` Peter Zijlstra
2010-10-15 17:13 ` Venkatesh Pallipadi
2010-10-15 17:20 ` Peter Zijlstra
2010-10-17 9:11 ` Yong Zhang
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