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[Xen-devel] Re: [PATCH 0 of 4] Xen spinlock updates and performance meas
| To: | Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH 0 of 4] Xen spinlock updates and performance measurements |
| From: | Ingo Molnar <mingo@xxxxxxx> |
| Date: | Thu, 21 Aug 2008 13:53:04 +0200 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 21 Aug 2008 04:53:47 -0700 |
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* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> Hi Ingo,
>
> This series has some updates to Xen's spinlock implementation,
> including adding a set of performance measurements in debugfs.
>
> The series consists of:
> - correctly deal with a spinlock in an interrupt handler interrupting
> another spinlock spinning on a lock. [2.6.27 bugfix]
> - Add Xen debugfs support, including performance metrics for
> spinlocks, multicalls and mmu operations.
> - Allow interrupts to be enabled while spinning (blocking) for a lock
> - Measure time spinlocks spend blocked
applied to tip/x86/xen - thanks Jeremy.
Ingo
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