Re: idle RAID1 cpu usage

2006-12-27 Thread Alistair John Strachan
On Wednesday 27 December 2006 18:09, Paul Slootman wrote: [snip] > My question is: why is CPU being used by the RAID1 threads, even for > those devices that are otherwise unused? What are they doing? > I even started distributed-net to check that it wasn't just idle CPU > cycles that were being use

Re: idle RAID1 cpu usage

2006-12-27 Thread Paul Slootman
Jan Engelhardt <[EMAIL PROTECTED]> wrote: >On Dec 27 2006 19:09, Paul Slootman wrote: >> >>This works fine, but I noticed that quite some time was being used by >>the mdX_raid1 threads; even on a partition that's not even being used at >>this time... (it was an empty mounted filesystem, but I umou

Re: idle RAID1 cpu usage

2006-12-27 Thread Jan Engelhardt
On Dec 27 2006 19:09, Paul Slootman wrote: > >This works fine, but I noticed that quite some time was being used by >the mdX_raid1 threads; even on a partition that's not even being used at >this time... (it was an empty mounted filesystem, but I umounted it to >be sure the filesystem code wasn't

idle RAID1 cpu usage

2006-12-27 Thread Paul Slootman
Summary: why are idle RAID1 devices using CPU? I have a Sun Netra X1 (ultrasparc @ 440MHz) running 2.6.19.1. There's one little modification I made to it: instead of 2 SCSI disks, it has one SCSI and one SATA disk (and a PCI SII 3512 card to connect it). Both disks are basically partitioned ident