Re: Hyperthreading problem with IRQ handling and scheduling

Sven Groot put forth on 3/4/2011 12:42 AM: > My question then is twofold. Firstly, why are all interrupts being handled > by the first CPU? You should read this: http://www.redhat.com/promo/summit/2008/downloads/pdf/Thursday/Mark_Wagner.pdf > I checked the various /proc/irq/#/smp_affinity entri

RE: Hyperthreading problem with IRQ handling and scheduling

ding the kernel will resolve this as well. Thanks, Sven -Original Message- From: Stan Hoeppner [mailto:s...@hardwarefreak.com] Sent: vrijdag 4 maart 2011 16:10 To: debian-user@lists.debian.org Subject: Re: Hyperthreading problem with IRQ handling and scheduling Sven Groot put forth on 3/3/2

Re: Hyperthreading problem with IRQ handling and scheduling

Sven Groot put forth on 3/3/2011 11:28 PM: Hello Sven, > I am using a cluster of machines running Debian 5.0.4, kernel > 2.6.26-2-amd64. These machines have dual Intel Xeon E5530 2.4GHz CPUs, which > are quad-core CPUs with hyperthreading. So that means each machine has 8 > physical CPUs and a to

Hyperthreading problem with IRQ handling and scheduling

Hello all, I am using a cluster of machines running Debian 5.0.4, kernel 2.6.26-2-amd64. These machines have dual Intel Xeon E5530 2.4GHz CPUs, which are quad-core CPUs with hyperthreading. So that means each machine has 8 physical CPUs and a total of 16 logical CPUs. I have run into an app

Hyperthreading problem with IRQ handling and scheduling

Hello all, I am using a cluster of machines running Debian 5.0.4, kernel 2.6.26-2-amd64. These machines have dual Intel Xeon E5530 2.4GHz CPUs, which are quad-core CPUs with hyperthreading. So that means each machine has 8 physical CPUs and a total of 16 logical CPUs. I have run into an app