Re: Anatomy of Perfomance tests

2012-06-29 Thread Wojciech Puchar
___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org" It would be very interesting to see the results of stress-testing sy

Re: Anatomy of Perfomance tests

2012-06-29 Thread Wojciech Puchar
That said, I think that the Linux kernel performs better simply due to wider adoption (larger developer base, wider set of use-cases, etc) and thus a higher chance of getting performance improvements. Note that stability matters too. of course - this is what i pointed out at first. the second

Re: Anatomy of Perfomance tests

2012-06-29 Thread Fred Morcos
On Fri, Jun 29, 2012 at 1:12 PM, Wojciech Puchar wrote: > what i would like to see too is how these systems compare on such test: > > - run lots of heavy disk I/O tests, many different in the same time, > including ones doing many writes to different places. > > - turn off power while doing this,

Re: Anatomy of Perfomance tests

2012-06-29 Thread Wojciech Puchar
what i would like to see too is how these systems compare on such test: - run lots of heavy disk I/O tests, many different in the same time, including ones doing many writes to different places. - turn off power while doing this, by unplugging from wall plug. - compare amount of loss and dest

Re: Anatomy of Perfomance tests

2012-06-29 Thread Jakub Lach
At least he should have used one or at very least identical systems, not 3 different, albeit similar. And I do not care If it would change results or not, comparing different systems invalidates benchmarks period. -- View this message in context: http://freebsd.1045724.n5.nabble.com/Anatomy-of-

Re: Anatomy of Perfomance tests

2012-06-29 Thread Walter Hurry
On Fri, 29 Jun 2012 11:40:37 +0200, Julien Cigar wrote: > On 06/29/2012 11:00, Fred Morcos wrote: >> On Fri, Jun 29, 2012 at 10:53 AM, Wojciech Puchar >> wrote: >>> Most probably all filesystems were used with defaults. >>> >>> MAYBE softupdates, but not even sure for this. Compare this to linux

Re: Anatomy of Perfomance tests

2012-06-29 Thread Julien Cigar
On 06/29/2012 11:00, Fred Morcos wrote: On Fri, Jun 29, 2012 at 10:53 AM, Wojciech Puchar wrote: Most probably all filesystems were used with defaults. MAYBE softupdates, but not even sure for this. Compare this to linux which is async-like. Comparing with UFS+async would be more fair. Still

Re: Anatomy of Perfomance tests

2012-06-29 Thread Wojciech Puchar
when properly configured FreeBSD is quite good. if that company: http://www.phoronix.com/scan.php?page=news_item&px=MTExNDM chose FreeBSD in spite of hype-overloaded linux it must be a reason. As well as it seems they know what they are doing, storage configuration is IMGO an example how suc

Re: Anatomy of Perfomance tests

2012-06-29 Thread Fred Morcos
On Fri, Jun 29, 2012 at 10:53 AM, Wojciech Puchar wrote: > Most probably all filesystems were used with defaults. > > MAYBE softupdates, but not even sure for this. Compare this to linux which > is async-like. Comparing with UFS+async would be more fair. > > Still - FreeBSD default MAXPHYS in para

Re: Anatomy of Perfomance tests

2012-06-29 Thread Wojciech Puchar
Most probably all filesystems were used with defaults. MAYBE softupdates, but not even sure for this. Compare this to linux which is async-like. Comparing with UFS+async would be more fair. Still - FreeBSD default MAXPHYS in param.h is far too low. i change it to 2048*1024 (default is 128*102