Re: Extreme performance falling on ZFS by durable operation of a server

2010-04-08 Thread K. Macy
Hi Alexandr, - How much memory do you have? - What are your ARC settings? Thanks, Kip On Thu, Apr 8, 2010 at 8:32 AM, Alexandr D. Sergeev wrote: > Hi, all! > > There are problems with a server on FreeBSD 7.2 CURRENT (6 Jul 2009), > carrying out the task of mail server SMTP, IMAP. > > Messages

Re: Extreme performance falling on ZFS by durable operation of a server

2010-04-12 Thread K. Macy
her transition to FreeBSD 8.0 RELEASE / STABLE can help? > ZFS in it is declared as "bug free" > > On Fri, Apr 09, 2010 at 06:44:09AM +0400, Alexandr D. Sergeev wrote: >> On Thu, Apr 08, 2010 at 01:14:42PM -0700, K. Macy wrote: >> > Hi Alexandr, >> >> H

Re: PHORONIX: OpenCL, GLSL Back-End For LLVM May Soon Open Up

2011-08-30 Thread K. Macy
> But the lack of response and non-shown interests shows a undeobtly signal > that freeBSD seems to be > dead for the HPC community and this could be also an indication for the lack > of CUDA support > by nVidia, Why performing efforts if no one cares? A great chance seems to > have passed by ...

Re: Tor on FreeBSD Performance issues

2012-02-06 Thread K. Macy
On Mon, Feb 6, 2012 at 9:38 PM, Julian Wissmann wrote: > Hi, > > I'm an admin for a non-profit that runs Tor exit nodes, most of them on Linux > currently, but due to problems on our high bandwidth nodes, we decided to > migrate one of them to FreeBSD to do some testing. > I've been using FreeBS

Re: pmap and mtx scalability problem

2012-04-24 Thread K. Macy
Known problem. There is an open disagreement about how to improve the granularity of locking in pmap. -Kip On Tue, Apr 24, 2012 at 9:14 PM, Slawa Olhovchenkov wrote: > I treid make -j 30 build{world,kernel} (latest -CURRENT) on 24-core machine > and see poor > scalability of pmap/mtx -- more th

Re: pmap and mtx scalability problem

2012-04-24 Thread K. Macy
Slawa Olhovchenkov wrote: > On Tue, Apr 24, 2012 at 09:27:30PM +0200, K. Macy wrote: > >> Known problem. There is an open disagreement about how to improve the >> granularity of locking in pmap. > > split locking to process-specific information and global information?

Re: pmap and mtx scalability problem

2012-04-24 Thread K. Macy
It's a bit dated at this point. Nonetheless, when gitorious is able to give something other than 503 to my search queries I'll post it. On Tue, Apr 24, 2012 at 10:45 PM, Slawa Olhovchenkov wrote: > On Tue, Apr 24, 2012 at 10:43:08PM +0200, K. Macy wrote: > >> No. I develo

Re: pmap and mtx scalability problem

2012-04-24 Thread K. Macy
You can try these. Your mileage *will* vary. https://gitorious.org/~kmm/freebsd/kmm-sandbox/commits/work/svn_release_8_1_0_page_lock https://gitorious.org/~kmm/freebsd/kmm-sandbox/commits/work/svn_trunk_page_lock On Tue, Apr 24, 2012 at 10:51 PM, K. Macy wrote: > It's a bit dated

Re: ixgbe: Network performance tuning (#TCP connections)

2016-02-03 Thread K. Macy
Also - check for txq overruns and rxq drops in sysctl. 64 is very low on FreeBSD. You may also look in to increasing the size of your pcb hash table. On Wed, Feb 3, 2016 at 9:50 AM, Allan Jude wrote: > On 2016-02-03 08:37, Meyer, Wolfgang wrote: >> Hello, >> >> we are evaluating network perform