Marko wrote: > All Xen domains share same physical volume but have theier uniqe > logical volume. Please be a bit more specific about the volume. Is it a single large disk or a bunch of RAIDx disks? Thanks Shehjar > So, yes I'd expect performance degradation becouse of that (that is > why test DHT2 performed better than DHT4). But I cant expect > performance drop when I use a performance "booster". > > Regards, Marko > > Shehjar Tikoo wrote: >> Marko wrote: >>> Hi Shehjar, >>> >>> Answers: 1.) Filesystem is default ext3 mounted with >>> "defaults,noatime" >> >> I see that each server, i.e. iscsi1 and iscsi2, has /srv/gluster as >> the backend in their corresponding xen domains, but did the xen >> domains also share the same disks/storage device? >> >> Thanks Shehjar >> >>> 2.) I think it how it was becouse I always put io-threads as >>> top(or near top) translator. Iin TEST5 "iot" can be ignored. 3.) >>> Server(brick) iscsi2 was also client on which I was running the >>> test and it was also a Xen guest. >>> >>> One more thing I'd like to point out. In documentation I miss >>> information of best practices which translators should be put >>> before/after other translators. Example: should one put >>> io-threads before or after io-cache? What does it mean if you >>> configure either way. >>> >>> Regards, Marko >>> >>> Shehjar Tikoo wrote: >>>> Marko wrote: >>>>> this document is made for my personal reference so it's a >>>>> little raw. >>>>> >>>>> >>>> >>>> A few questions: >>>> >>>> 1. What was the on-disk file system and the disk organization >>>> under the file system? >>>> >>>> 2. In the TEST5 volfile, the volume iot is dangling. Is that >>>> how it actually was during the test or was it interposed >>>> between volume wb and volume AFR? >>>> >>>>>> On Wed, Apr 8, 2009 at 6:18 PM, Marko <gluster at sopca.com >>>>>> <mailto:gluster at sopca.com>> wrote: >>>>>> >>>>>> Hello, >>>>>> >>>>>> To clearify: * im testing with gluisterfs-2.0.0rc7 * all >>>>>> bricks are on same physical server(Xen guests). It's a >>>>>> testing environment. >>>> >>>> Were the client side tests( i.e., both the test program like >>>> make-many-files and the corresponding glusterfs client..) also >>>> running in a Xen guest? >>>> >>>> Thanks Shehjar >>>> >>>> >>> >>> >> >> > >
