Messages in this thread |  | | Date | Tue, 9 Oct 2001 10:06:24 +0100 (BST) | From | Alistair Riddell <> | Subject | Re: write/read cache raid5 |
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On Tue, 9 Oct 2001, David Chow wrote:
> Yes my server serve lots of clients and have lots of NICs even > gigabit... how can I increase write/read cache on RAID5 ? It is better > performed when big cache allows on top (before) raid computation work > and physical disk writes.
In that case more memory will certainly help. You might like to check out Jens Axboe's block-highmem patch if you have more than 1GB of RAM. It allows hardware to DMA direct to high memory, rather than using bounce buffers, which can increase performance considerably.
-- Alistair Riddell - BOFH IT Manager, George Watson's College, Edinburgh Tel: +44 131 447 7931 Ext 176 Fax: +44 131 452 8594 Microsoft - because god hates us
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