 Home |
Products |
Support |
Community |
News |
xen-devel
Re: [Xen-devel] [PATCH][RFC] open HVM backing storage with O_SYNC
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH][RFC] open HVM backing storage with O_SYNC |
| From: | Rik van Riel <riel@xxxxxxxxxx> |
| Date: | Fri, 28 Jul 2006 13:02:40 -0400 |
| Delivery-date: | Fri, 28 Jul 2006 10:03:07 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
| In-reply-to: | <44C9B75B.7060809@xxxxxxxxxx> |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Organization: | Red Hat, Inc |
| References: | <44C9B75B.7060809@xxxxxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| User-agent: | Thunderbird 1.5.0.4 (X11/20060614) |
Rik van Riel wrote: Any comments on this patch? I got some comments from Alan, who would like to see this behaviour tunable with hdparm from inside the guest. This requires larger qemu changes though, to be specific an ->fsync callback into each of the backing store drivers, so that is something for the qemu mailing list. The current bottleneck seems to be that MAX_MULT_COUNT is only 16. I will try raising this to 256 so we can transport a lot more data per world and domain switch... -- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Xen-devel] [PATCH] turn off writable page tables, Keir Fraser |
|---|---|
| Next by Date: | RE: [Xen-devel] [PATCH] Minor fix to xentop to stop it dying whendomains go away at the wrong time, Graham, Simon |
| Previous by Thread: | [Xen-devel] [PATCH][RFC] open HVM backing storage with O_SYNC, Rik van Riel |
| Next by Thread: | Re: [Xen-devel] [PATCH][RFC] open HVM backing storage with O_SYNC, Rik van Riel |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
