Holger Kiehl wrote:I did read that threat, but due to my limited understanding about kernelWhy 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
disks.
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?No. Will give this a try if the problem is not found.