On Thu, 12 Jul 2007, Jeff Garzik wrote: > dean gaudet wrote: > > On Thu, 12 Jul 2007, Jeff Garzik wrote: > > > > > dean gaudet wrote: > > > > oh very nice... no warnings on boot, and no warnings while i "dd > > > > if=/dev/sdX > > > > of=/dev/null" and i'm seeing 74MB/s+ from each disk on this simple read > > > > test. > > > > > > > > for lack of a better test i started an untar/diff stress test on the > > > > disks... we'll see how it goes. (it's based on doug ledford's > > > > memtest.sh) > > > Thanks for the testing. Looks like we might have hit on something good... > > > > yep this does look good. no problems overnight in the untar/diff/rm > > workload. if you've got any other workload you'd like me to throw at it, > > let me know. i might be able to scare up a disk or two with errors to check > > error handling. > > Nothing specific. I usually just throw various workloads at it, both > throughput-intensive, seek-intensive, multiple threads at the same time, > stressing multiple disks at the same time, etc. yeah the untar/diff/rm workload is seek/thread intensive. > I presume from your past messages your tests include multiple disks at the > same time? yep, 4 disks... i was getting 4x74MB/s with dd read. unfortunately i don't have more disks in the system at this point so i can't test all 8 ports at full tilt. each disk had its own XFS filesystem. > > i tested hotplug just for kicks... no luck there :) but then you didn't say > > that would work yet. > > hehehe Well I sorta didn't want to mention it, to avoid clouding the waters > further. > > In theory, hotplug and hot unplug -should- work, in version 7. Your report is > a useful contradiction of that theory, and signals where to poke next. Since > all this hacking is a spare-time effort, so promises as to when next I'll poke > at it. It might be tomorrow, or a month from now. Getting "new EH" upstream > was a big hurdle to overcome, and your testing really helped that along. > > Anyway, something like Version 7 is probably what I will push upstream for > 2.6.23-rc1. cool, thanks. -dean - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
