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Re: [Xen-devel] [PATCH][RFC] Serialize scrubbing pages
| To: | Kouya Shimura <kouya@xxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH][RFC] Serialize scrubbing pages |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Mon, 11 Aug 2008 11:12:14 +0100 |
| Cc: | |
| Delivery-date: | Mon, 11 Aug 2008 03:12:46 -0700 |
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| Thread-topic: | [Xen-devel] [PATCH][RFC] Serialize scrubbing pages |
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On 11/8/08 11:01, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote: > I noticed that parallel scrubbing pages is not efficient > due to spinlock contention. (also memory bandwidth?) > Actually heap_lock becomes a bottleneck. I've considered the possibility of moving this kind of thing into a service domain. Then it would be visible to the scheduler and be less of a hack. Anyhow, I hadn't considered the contention for the heap_lock. I think your patch is good and I will apply it for 3.3. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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