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2006 Jul 13
1
Ext3 overhead vs Raw
Hi,
I am trying to find way to speed up read access on ext3 filesystem.
I did some tests using dd, with different block sizes, directio and
none, etc. The test file is about 1Gig in size, and spread across 25
fragments (found using filefrag). Block size is 4k. I have also tried
setting readahead buffer using blockdev , from 256 to 32767.
time /root/dd conv=nocreat ibs=4096 obs=4096