On Fri, Jul 17, 2009 at 12:06:52AM +0300, Georgy Goshin wrote: > Hello! > > I've replaced the old Windows NT 4.0 server with new modern > > (Core 2 DUO 2.4Ghz with 1GB RAM, SATA drives in linux software RAID 1 > under CentOS 5, Samba 3.3.0-38) > > But client started to complain that the speed was slowed down. I made > some tests with old and new servers and see that working with files is > really slow. Office and pdf documents opening sometimes up to minute > comparing 1-2 second from old server. > > Please point me to the right way to catch the problem > > hdparm shows good numbers: > > /dev/md0: > Timing buffered disk reads: 182 MB in 3.01 seconds = 60.48 MB/sec > /dev/md0: > Timing cached reads: 4528 MB in 2.00 seconds = 2265.41 MB/sec
This is not needed (and may be harmful) socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 But this won't make a difference between 1-2 seconds and one minute. Is it slow to initially connect to the share ? If so I'd suspect DNS lookups. If it's slow accessing the share but fast to connect I'd get a wireshark capture trace and looks for timestamp gaps in the packet stream. That should give a clue. You can do the same with a timestamped smbd log at debug level 10 - look for suspicious gaps in activity, as there's some "waiting" problem that's being triggered here. Jeremy. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba