On Wed, 2013-06-05 at 08:08 +1000, Dave Chinner wrote: > On Tue, Jun 04, 2013 at 01:38:29PM -0500, Chandra Seetharaman wrote: > > On Tue, 2013-06-04 at 12:53 +1000, Dave Chinner wrote: > > > On Mon, Jun 03, 2013 at 11:10:11AM +0200, Emmanuel Florac wrote: > > > > Le Mon, 3 Jun 2013 17:44:52 +1000 vous écriviez: > > > > > > > > > There has been some assertions made recently that metadata CRCs have > > > > > too much overhead to always be enabled. So I'll run some quick > > > > > benchmarks to demonstrate the "too much overhead" assertions are > > > > > completely unfounded. > > > > > > > > Just a quick question: what is the minimal kernel version and xfsprogs > > > > version needed to run xfs with metadata CRC? I'd happily test it on > > > > real hardware, I have a couple of storage servers in test in the 40 to > > > > 108 TB range. > > > > > > If the maintainers merge all the patches I send for the 3.10-rc > > > series, then the 3.10 release should be stable enough to use for > > > testing with data you don't care if you lose. > > > > > > As for the userspace code - that is still just a patchset. I haven't > > > had any feedback from the maintainers about it in the past month, so > > > I've got no idea what they are doing with it. I'll post out a new > > > version in the next couple of days - it's 50-odd patches by now, so > > > it'd be nice to have it in the xfsprogs git tree so people could > > > just pull it and build it for testing purposes by the time that 3.10 > > > releases.... > > > > Dave, > > > > I was of the impression that the user space changes will be released > > sometime later (i.e when CRC comes out of experimental). If we make the > > user space changes to create V5 filesystem now, it will be an annoyance > > for people that created V5 super blocks without my changes (getting rid > > of OQUOTA.* flags). > > People still need access to the code to test it. I'm not talking > about an official release here at all, just getting it committed to > the git tree to make it easy for people to get the code and for > developers to build on top of it and fix bugs. > Oh, I see. It is clear now. Also, is there a git tree where I can pull your xfsprogs changes from ? I tried to apply xfsprogs-kern-sync-patchset-v2.tar.gz on top of xfsprogs git tree, it seems to have some problems. Or is there a later version ? > > BTW, I am waiting for your response to do a final re-post on the kernel > > changes, after which I will post my user space changes. > > I must have missed your question, I'll go back and have a look for > it. > Thanks. > Cheers, > > Dave. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
