[Samba] performance regression between 30.14a and 3.0.20
jra at samba.org
Mon Apr 24 08:01:02 GMT 2006
On Sun, Apr 23, 2006 at 10:24:37PM -0400, Greg Dickie wrote:
> Perhaps another data point that might ring a bell. While using 3.0.21c
> and monitoring direct IO vs. buffered IO (on XFS): if you see 40MBs of
> direct IO you will see another 40 MBs of buffered IO on 21c that you do
> not see on 14a. According to a colleague he saw this at one point in a
> previous revision and thought it was a problem of an extraneous sync
> somewhere.... This might explain why you don't see this with your ram disk.
Ok, I don't understand this message :-). Can you explain exactly
what you mean with "40 MBs of bufferd IO on 21c that you do not
see on 14a" - how are you measuring this and where do you see it ?
Use small words please, I'm very jet-lagged :-).
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