Hi, On Tue, 2007-12-11 at 18:43 -0600, Bob Peterson wrote: > Hi GFS2 Folks, > > The following is a set of ten patches designed to give gfs2 somewhat > better performance than before. Some are trivial and may or may not > have a real impact on performance. I'll let Steve Whitehouse decide > which ones should go upstream and which ones aren't worth it. > The patches may be summarized as follows: > I've applied most of these with the exceptions of:
> 1. Journal extent mapping > 2. Get rid of useless "found" variable in quota.c > 3. Run through full bitmaps quicker in gfs2_bitfit > 4. Get rid of sd_statfs_mutex - Needs fixing as per previous email. > 5. Shortcut in gfs2_write_alloc_required if writing past eof. > 6. Reorganize function gfs2_glmutex_lock > 7. Only fetch the dinode once in block_map > 8. Only find indirect pointer buffers once in block_map - I'd really far rather see a fix to bz #307091. Also, although it might make writes faster, I rather suspect that it will have the opposite effect on reads, since the indirect blocks will not be in the journal at all. So on balance I think I'd rather not take this patch right now. > 9. Move meta_inval to glops.c and declare static, more attach_bufdata > to trans.c and declare static. - This is also done in bz #349271 and I only want to apply one or the other of these two patches so I'm deferring this until we know what we are doing with the patches for #349271. > 10. Function meta_read optimization. > Regards, > > Bob Peterson > Red Hat GFS > > Also, please use git-send-email if you are sending multiple patches. I'm not sure what you did to git to get the rather strange paths in these patches, but I had to edit all the patches except the first one by hand in order to get them to apply, Steve.
