Re: NFS server bottlenecks

2012-10-20 Thread Nikolay Denev
On Oct 18, 2012, at 6:11 PM, Nikolay Denev wrote: > > On Oct 15, 2012, at 5:34 PM, Ivan Voras wrote: > >> On 15 October 2012 16:31, Nikolay Denev wrote: >>> >>> On Oct 15, 2012, at 2:52 PM, Ivan Voras wrote: >> http://people.freebsd.org/~ivoras/diffs/nfscache_lock.patch It

Re: NFS server bottlenecks

2012-10-20 Thread Ivan Voras
On 20 October 2012 13:42, Nikolay Denev wrote: > Here are the results from testing both patches : > http://home.totalterror.net/freebsd/nfstest/results.html > Both tests ran for about 14 hours ( a bit too much, but I wanted to compare > different zfs recordsize settings ), > and were done first

Re: NFS server bottlenecks

2012-10-20 Thread Rick Macklem
Ivan Voras wrote: > On 20 October 2012 13:42, Nikolay Denev wrote: > > > Here are the results from testing both patches : > > http://home.totalterror.net/freebsd/nfstest/results.html > > Both tests ran for about 14 hours ( a bit too much, but I wanted to > > compare different zfs recordsize setti

Re: NFS server bottlenecks

2012-10-20 Thread Nikolay Denev
On Oct 20, 2012, at 3:11 PM, Ivan Voras wrote: > On 20 October 2012 13:42, Nikolay Denev wrote: > >> Here are the results from testing both patches : >> http://home.totalterror.net/freebsd/nfstest/results.html >> Both tests ran for about 14 hours ( a bit too much, but I wanted to compare >>

Re: NFS server bottlenecks

2012-10-20 Thread Nikolay Denev
On Oct 20, 2012, at 3:11 PM, Ivan Voras wrote: > On 20 October 2012 13:42, Nikolay Denev wrote: > >> Here are the results from testing both patches : >> http://home.totalterror.net/freebsd/nfstest/results.html >> Both tests ran for about 14 hours ( a bit too much, but I wanted to compare >>

Re: NFS server bottlenecks

2012-10-20 Thread Nikolay Denev
On Oct 20, 2012, at 4:00 PM, Nikolay Denev wrote: > > On Oct 20, 2012, at 3:11 PM, Ivan Voras wrote: > >> On 20 October 2012 13:42, Nikolay Denev wrote: >> >>> Here are the results from testing both patches : >>> http://home.totalterror.net/freebsd/nfstest/results.html >>> Both tests ran f

Re: NFS server bottlenecks

2012-10-20 Thread Ivan Voras
On 20 October 2012 14:45, Rick Macklem wrote: > Ivan Voras wrote: >> I don't know how to interpret the rise in context switches; as this is >> kernel code, I'd expect no context switches. I hope someone else can >> explain. >> > Don't the mtx_lock() calls spin for a little while and then context

Re: NFS server bottlenecks

2012-10-20 Thread Outback Dingo
On Sat, Oct 20, 2012 at 3:28 PM, Ivan Voras wrote: > On 20 October 2012 14:45, Rick Macklem wrote: >> Ivan Voras wrote: > >>> I don't know how to interpret the rise in context switches; as this is >>> kernel code, I'd expect no context switches. I hope someone else can >>> explain. >>> >> Don't t

Re: NFS server bottlenecks

2012-10-20 Thread Nikolay Denev
On Oct 20, 2012, at 10:45 PM, Outback Dingo wrote: > On Sat, Oct 20, 2012 at 3:28 PM, Ivan Voras wrote: >> On 20 October 2012 14:45, Rick Macklem wrote: >>> Ivan Voras wrote: >> I don't know how to interpret the rise in context switches; as this is kernel code, I'd expect no context

Re: NFS server bottlenecks

2012-10-20 Thread Rick Macklem
Outback Dingo wrote: > On Sat, Oct 20, 2012 at 3:28 PM, Ivan Voras > wrote: > > On 20 October 2012 14:45, Rick Macklem wrote: > >> Ivan Voras wrote: > > > >>> I don't know how to interpret the rise in context switches; as > >>> this is > >>> kernel code, I'd expect no context switches. I hope som