Re: Samba read speed performance tuning

2010-03-20 Thread Dan Naumov
On Sat, Mar 20, 2010 at 3:49 AM, Gary Gatten ggat...@waddell.com wrote: It MAY make a big diff, but make sure during your tests you use unique files or flush the cache or you'll me testing cache speed and not disk speed. Yeah I did make sure to use unique files for testing the effects of

Re: Samba read speed performance tuning

2010-03-19 Thread Dan Naumov
On Fri, Mar 19, 2010 at 11:14 PM, Dan Naumov dan.nau...@gmail.com wrote: On a FreeBSD 8.0-RELEASE/amd64 system with a Supermicro X7SPA-H board using an Intel gigabit nic with the em driver, running on top of a ZFS mirror, I was seeing a strange issue. Local reads and writes to the pool easily

Re: Samba read speed performance tuning

2010-03-19 Thread Gary Gatten
-...@freebsd.org; freebsd-questions@freebsd.org freebsd-questions@freebsd.org; FreeBSD-STABLE Mailing List freebsd-sta...@freebsd.org; freebsd-performa...@freebsd.org freebsd-performa...@freebsd.org Sent: Fri Mar 19 20:28:02 2010 Subject: Re: Samba read speed performance tuning On Fri, Mar 19, 2010

Re: Samba read speed performance tuning

2010-03-19 Thread Adam Vande More
On Fri, Mar 19, 2010 at 8:28 PM, Dan Naumov dan.nau...@gmail.com wrote: Oh my god... Why did noone tell me how much of an enormous performance boost vfs.zfs.prefetch_disable=0 (aka actually enabling prefetch) is. My local reads off the mirror pool jumped from 75mb/s to 96mb/s (ie. they are