Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-06 Thread Adam PAPAI
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/5/10 2:43 AM, Igor Mozolevsky wrote: > On 5 June 2010 00:58, Adam PAPAI wrote: > >> How can I tune my disk to make it faster? Is it possible? What is the >> reason of the really slow I/O with more than 4 threads? What do you >> recommend me to d

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Max Laier
On Saturday 05 June 2010 01:58:35 Adam PAPAI wrote: > Why FreeBSD is supreme with 1 and 2 thread. And why is it 2 and 3 times > slower with 4-8-16-32 threads compared to Debian? The first two tests (1 > thread and 2 thread) showed me that FreeBSD is supreme in I/O, but later > tests showed me, that

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Igor Mozolevsky
/usr/src : zfs with compression enabled /usr/src : 386.3MB/s >>> Do I understand it well? It seems that zfs with compression enabled on >>> /usr/src with 8KB block size and 16 threads performs 386.3MB/s which >>> is about 6 times better than debian5? I am thinking about this image >>> ht

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Adam PAPAI
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/5/10 1:04 PM, Bruce Cran wrote: > On Sat, 5 Jun 2010 12:50:15 +0200 > Stefan Miklosovic wrote: > >>> /var : ufs with softupdates >>> /usr/obj : zfs with checksums disabled >>> /usr/src : zfs with compression enabled >>> /home : zfs with compre

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Bruce Cran
On Sat, 5 Jun 2010 12:50:15 +0200 Stefan Miklosovic wrote: > > /var : ufs with softupdates > > /usr/obj : zfs with checksums disabled > > /usr/src : zfs with compression enabled > > /home : zfs with compression disabled and checksums enabled > > > > I ran a test with a blocksize of 8KB and 16 t

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Stefan Miklosovic
> /var : ufs with softupdates > /usr/obj : zfs with checksums disabled > /usr/src : zfs with compression enabled > /home : zfs with compression disabled and checksums enabled > > I ran a test with a blocksize of 8KB and 16 threads. > > /var : 25.2MB/s > /usr/obj : 64.8MB/s > /usr/src : 386.

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-05 Thread Adam PAPAI
On 6/5/10 3:36 AM, Bruce Cran wrote: > Some quick tests show that ufs does do rather poorly on my system too. I have > the following filesystems setup: > > /var : ufs with softupdates > /usr/obj : zfs with checksums disabled > /usr/src : zfs with compression enabled > /home : zfs with compressi

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-04 Thread Bruce Cran
On Saturday 05 June 2010 00:58:35 Adam PAPAI wrote: > Why FreeBSD is supreme with 1 and 2 thread. And why is it 2 and 3 times > slower with 4-8-16-32 threads compared to Debian? The first two tests (1 > thread and 2 thread) showed me that FreeBSD is supreme in I/O, but later > tests showed me, tha

Re: sysbench / fileio - Linux vs. FreeBSD

2010-06-04 Thread Igor Mozolevsky
On 5 June 2010 00:58, Adam PAPAI wrote: > How can I tune my disk to make it faster? Is it possible? What is the > reason of the really slow I/O with more than 4 threads? What do you > recommend me to do? Why is it damn slow with 8K blocksize? Does linux still have async disk writes by default?

sysbench / fileio - Linux vs. FreeBSD

2010-06-04 Thread Adam PAPAI
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi List, A week ago I started to benchmark Linux vs. FreeBSD on a Dell Poweredge 1850. CPU: 2 x 3.4Ghz Xeon (Dual Core) Memory: 8GB (4x2) Disk: 1 x SEAGATE ST373454LC D404 (SCSI) FreeBSD kazoku 8.0-RELEASE-p3 FreeBSD 8.0-RELEASE-p3 #0: Tue May 25 20