Messages in this thread | | | Date | Thu, 21 Sep 2006 22:22:53 +0100 | From | "Andrew Lyon" <> | Subject | SOLVED: Re: JMicron 20360/20363 AHCI Controller much slower with 2.6.18 |
| |
> Andrew Lyon wrote: > > Hi, > > > > I have a Gigabyte GA_965P_DS3 with Core 2 Duo CPU, wd raptor connected > > to onboard JMicron 20360/20363 AHCI Controller, with 2.6.18 the drive > > is very slow: > > > > beast ~ # uname -a > > Linux beast 2.6.18 #1 SMP Wed Sep 20 15:04:24 BST 2006 i686 Intel(R) > > Core(TM)2 C > > PU 6600 @ 2.40GHz GNU/Linux > > beast ~ # hdparm -t /dev/sda > > > > /dev/sda: > > Timing buffered disk reads: 100 MB in 3.02 seconds = 33.10 MB/sec > > Which IO scheduler are you using? If you're using anticipatory or cfq, > can you try deadline? > > Thanks. > > -- > tejun
Very strange, I rebooted into deadline scheduler kernel, the drive performed as fast as with 2.6.17, due to a different problem I had to do a hard reset and the box booted back into 2.6.18 with anticipatory scheduler, but this time the dirve performed fine!
I had initially upgraded the kernel remotely and had only done shutdown now -r, not a hard reset, Is it generally advisable to do a hard reset when upgrading the kernel? (ive never read that) Is there any way to do that remotely?
One last question, I recently got a sata dvd writer for this box as the pata ports on the jmicron were not supported, I notice there is now support for them in 2.6.18 (with generic ide), but which would be best supported ? the sata dvdrw or the pata? I currently have both available and neither is installed.
Thanks Andy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |