On Wed, May 5, 2010 at 4:39 AM, Mikulas Patocka <mpatocka@xxxxxxxxxx> wrote: > See the patch that I sent you. Does it improve performance for NON-shared > snapshots? (eventually, I'll make the same change to shared snapshots too) The server and RAID I had for testing has now been used for something else so I am unable to do any more tests atm. > BTW. what disks and raid array do you use? Is it a hardware or software > raid? Hardware (Infortrend) RAID. > I have found that with Maxtor disks (IDE, SATA and SCSI), you have to > limit the request size to 256kB, or you get unpredictable performance > drops. I played with the request size but it made little difference. >> Out of interest what are Redhat's plans for this feature? Will it be >> in RHEL6 or is it going to wait until it is accepted upstream and then >> make it into some later Fedora release? Could it be easily backported >> to RHEL5 do you think? > > Not in RHEL 6.0. Maybe in 6.1. > > It's not planned to backport to 5.x. Okay. Thanks. I will try and test this again when I get some hardware. Daire -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
