Suparna Bhattacharya wrote:
cc'ing linux-aio, for the AIO part of the discussion. You might be able to find some of your answers in the archives.
there are several tests for AIO - I tend to use Chris Mason's aio-stress which can be used to compare performance in terms of throughput for streaming reads/writes for different variations of options.
(the following page isn't exactly up-to-date, but should still give
you some pointers: lse.sf.net/io/aio.html)
Thanks - those were lists that I was not aware of.
This went in with the patch http://cifs.bkbits.net:8080/linux-2.5cifs/[EMAIL PROTECTED]You had mentioned do_sync_read - is there a reason to change the current call to generic_file_read in the cifs read entry point to do_sync_read. Some filesystems which export aio routines still call generic_file_read and others call do_sync_read and it was not obvious to me what that would change.
I think you could keep it the way it is - generic_file_read will take care of things. But maybe I should comment only after I see your patch. Are you planning to post it some time ?
Regards
Suparna
and merged into mainline about six days ago (note that it is disabled by default - unless CONFIG_CIFS_EXPERIMENTAL
is selected).
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