Hi, I am using the iozone tool for measuring the file system performance. but when I use the auto mode in iozone the read performance is very low in some cases(getting 32MB/s for record length > 128kb, for iGB file size) compared to throughput mode(70MB/sec irrespective of the record or file size). What is the reason for this difference.
Regards, Pradeepkumar S On 10/24/08, Mulyadi Santosa <[EMAIL PROTECTED]> wrote: > > Hi... > > > On Fri, Oct 24, 2008 at 9:41 PM, pradeepkumar soman > <[EMAIL PROTECTED]> wrote: > > > > high means better performance. > > I am using the sequential reading > > How VFS takes decision on whether to turn on readahead? > > > I see.... fortunately newer readahead is invented by Fengguang Wu and > once I wrote about it with him. > > Here's the URL: > http://www.samag.com/documents/sam0616a/ > > regards, > > > Mulyadi. >
