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Re: [Xen-users] xen 3.3 -> tap:aio performance over nfs
| To: | C V <rayvittal-lists@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-users] xen 3.3 -> tap:aio performance over nfs |
| From: | Stefan de Konink <stefan@xxxxxxxxx> |
| Date: | Sat, 31 Jan 2009 03:48:27 +0100 |
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| Delivery-date: | Fri, 30 Jan 2009 18:49:16 -0800 |
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C V wrote: It seems that 1. tap:aio causes synchronous writes to the nfs mount (6 writes, wait for ack, write 6 more etc) as opposed to NFSv3 async write2. Each synchronous write writes very small blocks (4K bytes vs max of 32K bytes) Then increase it ;) Is there any configuration option to tweak this behavior to get better-performing async writes to the filer? This is my big comparison table: http://xen.bot.nu/benchmarks/virtueel.html Stefan _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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