On Wed, 28 May 2008, Peter Rabbitson wrote:
Justin Piszcz wrote:
Hardware:
1. Utilized (6) 400 gigabyte sata hard drives.
2. Everything is on PCI-e (965 chipset & a 2port sata card)
Used the following 'optimizations' for all tests.
# Set read-ahead.
echo "Setting read-ahead to 64 MiB for /dev/md3"
blockdev --setra 65536 /dev/md3
That's actually 65k x 512byte blocks so 32MiB
Ah whoops, thanks!
Results are meaningless without a crucial detail - what was the chunk size
used during array creation time? Otherwise interesting test :)
Indeed, the chunk size used was 256 KiB for all tests.
Justin.
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