Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-09 Thread Steven M. Schultz
On Thu, 8 Jul 2004, Alexei Dets wrote: > > I've very suprised to see those results! When I enabled HT the > > entire system slowed down and encoding ran about 15-20% *SLOWER*. That > > This was a 2.4.x kernel from the kernel.org? I'm not using them since a long It was whatev

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-08 Thread Alexei Dets
Hi! On Tuesday 06 July 2004 13:19, Bernhard Praschinger wrote: > > OS: Linux, Fedora Core 1, kernel-2.4.22-1.2194.nptl (and its SMP version) > > Software version: mjpegtools-1.6.2 > > The values should be even better with a new 2.6.x Kernel I'll try to retest it with 2.6.x kernel. Now, finally, NV

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-08 Thread Alexei Dets
Hi! On Thursday 08 July 2004 00:14, Steven M. Schultz wrote: > Hype(r)Threading (it's mostly "hype" by Intel) is not the same > as actually having a 2nd cpu. Not the same, sure. That's why I wanted to see the difference :-) > > So, the results show that encoding with hyperthreading en

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-08 Thread Alexei Dets
Hi! On Thursday 08 July 2004 10:17, Steven M. Schultz wrote: > On Thu, 8 Jul 2004 [EMAIL PROTECTED] wrote: > > > The "HT" isn't a full/complete cpu (dual core cpus are in the process > > > of being developed by Intel (and others))... > > > > scheduler in the 2.4 series kernel is not HT "aware".

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-08 Thread Steven M. Schultz
On Thu, 8 Jul 2004 [EMAIL PROTECTED] wrote: > > The "HT" isn't a full/complete cpu (dual core cpus are in the process > > of being developed by Intel (and others))... > scheduler in the 2.4 series kernel is not HT "aware". Thus the processor afinity > is incorrectly treated like a tradi

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-08 Thread christoph
> > The "HT" isn't a full/complete cpu (dual core cpus are in the process > of being developed by Intel (and others)). So enabling/disabling > Hype(r)Threading (it's mostly "hype" by Intel) is not the same > as actually having a 2nd cpu. > > But of course you knew

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-07 Thread Steven M. Schultz
Hi! > From: Alexei Dets <[EMAIL PROTECTED]> > I've decided to investigate a bit a dependence of mpeg2enc encoding speed from > the value of its -M (--multithread) encoding option & the type of the kernel > (UP/SMP) the system runs on the Pentium 4 with hyperthreading support. > For the tests with

Re: [Mjpeg-users] mpeg2enc + Pentium-4 Hyperthreading testing results

2004-07-06 Thread Bernhard Praschinger
Hallo > I've decided to investigate a bit a dependence of mpeg2enc encoding speed from > the value of its -M (--multithread) encoding option & the type of the kernel > (UP/SMP) the system runs on the Pentium 4 with hyperthreading support. > For the tests with UP kernel hyperthreading was disabled i