** Reply to message from Me <[EMAIL PROTECTED]> on Sat, 22 Mar 2003 14:25:55 -0500 (EST)
> Okay, I just did my write tests. You may be a bit supprised at my > results. I know I was. :/ > > Upgraded to samba 2.2.8 custom build > Used speedtest.tar.bz2. Changed to socket options = TCP_NODELAY > SO_RCVBUF=32768 SO_SNDBUF=32768 > 3/21/03 /dev/hdc nyonker 1972.375 287 412.34 6.87 > > Used speedtest.tar.bz2. Changed to socket options = TCP_NODELAY > SO_RCVBUF=32768 SO_SNDBUF=32768 > 3/22/03 nyonker /dev/hdc 1972.375 272 435.08 7.25 > > Used speedtest directory. Changed to socket options = TCP_NODELAY > SO_RCVBUF=32768 SO_SNDBUF=32768 > 3/22/03 /dev/hdc nyonker 2,026 290 419.13 6.99 > > Used speedtest directory. Changed to socket options = TCP_NODELAY > SO_RCVBUF=32768 SO_SNDBUF=32768 > 3/22/03 nyonker /dev/hdc 2,026 294 413.42 6.89 > > The speedtest directory has 416 files in 29 directories. > > According to these results, I'm getting the same performance on reads AND > writes. Combine this with the data I got from upgrading my CPU and > switching to 2.2.8 leaves me with only one conclusion: > > I am getting the maximum speed I can over a 100Mb network (switched)... > That means SMB incurs an almost 30% performance hit as compared to FTP. > The only real way for me to make sure though is to go to gigabit. It's > not that important to me right now. <snip> There is a nice discussion on the latest lwn.net about ext2/ext3 (subscriber only). Apparently Alex Tomas recently killed a locking problem in ext2 which sped up throughput for one user from 62 to 104 MB/s! This change will likely be accepted for the 2.5 series. As for ext3, you really are trading off scalability and performance for journalling. Ext3 is still a heavy user of the Big Kernel Lock and does not scale well as a result. Hopefully changes in ext2 will force corresponding changes in ext3 as ext3 gains prominence as the "default" linux fs. jb -- Jack Bowling mailto:[EMAIL PROTECTED] Prince George, BC -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
