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Re: [Xen-devel] alloc_heap_pages is low efficient with more CPUs

  • To: tupeng212 <tupeng212@xxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxx>
  • Date: Mon, 15 Oct 2012 16:45:57 +0100
  • Cc: Jan Beulich <JBeulich@xxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxx>
  • Delivery-date: Mon, 15 Oct 2012 15:46:19 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Ac2q7CrCExH23rm/tkiC9JNAARv1qQ==
  • Thread-topic: [Xen-devel] alloc_heap_pages is low efficient with more CPUs
On 15/10/2012 14:27, "tupeng212" <tupeng212@xxxxxxxxx> wrote:

> Please try the attached patch.
> : Great!  you have done a good job, needless time decreases badly to 1s.
>  
> If anybody has no proposal, I suggest you to commit this patch.

I have applied it to xen-unstable. It probably makes sense to put it in 4.1
and 4.2 as well (cc'ed Jan, and attaching the backport for 4.1 again).

 -- Keir

Attachment: 00-reduce-tlbflush_filter
Description: Binary data

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