[Cluster-devel] [gfs2-utils PATCH 0/7] fsck.gfs2 performance improvements

Bob Peterson rpeterso at redhat.com
Wed Jun 22 19:26:45 UTC 2016


My recent set of patches to fsck.gfs2 saved a lot of memory, thus
enabling us to run fsck.gfs2 on much larger file systems. However,
it slowed things down and our performance regressed. This is a set
of seven patches designed to improve performance again. There are
probably more improvements I can make, but I've been busy with kernel
work, so it's not my primary focus. If I come up with more patches,
I'll post them later.
---
Bob Peterson (7):
  fsck.gfs2: Don't bother to pass bl blockmap pointer
  fsck.gfs2: Remember the previous rgrp pointer for speed
  fsck.gfs2: Don't set gfs1rg pointer unless we need to
  fsck.gfs2: Make _fsck_bitmap_set not send a return code
  fsck.gfs2: convert fsck_bitmap_set to a macro
  fsck.gfs2: Speed up function bitmap_type
  fsck.gfs2: Make pass2 go by directory rbtree for performance

 gfs2/fsck/metawalk.c | 69 ++++++----------------------------------------------
 gfs2/fsck/metawalk.h | 65 +++++++++++++++++++++++++++++++++++++++++++------
 gfs2/fsck/pass1.c    | 47 +++++++++++++++++++++--------------
 gfs2/fsck/pass2.c    | 21 ++++++----------
 gfs2/fsck/util.h     |  8 +++++-
 5 files changed, 110 insertions(+), 100 deletions(-)

-- 
2.5.5




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