Re: Where is the performance bottleneck?
From: Al Boldi
Date: Mon Aug 29 2005 - 15:12:32 EST
Holger Kiehl wrote:
> Why do I only get 247 MB/s for writting and 227 MB/s for reading (from the
> bonnie++ results) for a Raid0 over 8 disks? I was expecting to get nearly
> three times those numbers if you take the numbers from the individual
> What limit am I hitting here?
You may be hitting a 2.6 kernel bug, which has something to do with
readahead, ask Jens Axboe about it! (see "[git patches] IDE update" thread)
Sadly, 2.6.13 did not fix it either.
Did you try 2.4.31?
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