----- Original Message ---- > From: Alasdair G Kergon <[EMAIL PROTECTED]> > To: Martin Knoblauch <[EMAIL PROTECTED]> > Cc: Linus Torvalds <[EMAIL PROTECTED]>; Mel Gorman <[EMAIL PROTECTED]>; > Fengguang Wu <[EMAIL PROTECTED]>; Mike Snitzer <[EMAIL PROTECTED]>; Peter > Zijlstra <[EMAIL PROTECTED]>; [EMAIL PROTECTED]; Ingo Molnar <[EMAIL > PROTECTED]>; linux-kernel@vger.kernel.org; "[EMAIL PROTECTED]" <[EMAIL > PROTECTED]>; [EMAIL PROTECTED]; Jens Axboe <[EMAIL PROTECTED]>; Milan Broz > <[EMAIL PROTECTED]>; Neil Brown <[EMAIL PROTECTED]> > Sent: Wednesday, January 23, 2008 12:40:52 AM > Subject: Re: regression: 100% io-wait with 2.6.24-rcX > > On Tue, Jan 22, 2008 at 07:25:15AM -0800, Martin Knoblauch wrote: > > [EMAIL PROTECTED] ~]# dmsetup table > > VolGroup00-LogVol02: 0 350945280 linear 104:2 67109248 > > VolGroup00-LogVol01: 0 8388608 linear 104:2 418054528 > > VolGroup00-LogVol00: 0 67108864 linear 104:2 384 > > The IO should pass straight through simple linear targets like > that without needing to get broken up, so I wouldn't expect those patches to > make any difference in this particular case. >
Alasdair, LVM/DM are off the hook :-) I converted one box to direct using partitions and the performance is the same disappointment as with LVM/DM. Thanks anyway for looking at my problem. I will move the discussion now to a new thread, targetting CCISS directly. Cheers Martin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
