Re: Proper kernel irq time accounting -v4

From: Shaun Ruffell
Date: Thu Oct 14 2010 - 12:42:31 EST


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
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