[Linux-cluster] optimising DLM speed?

[Alan Brown]

 > A faster way to just grab lock numbers is to grep for gfs2
in /proc/slabinfo as that will show how many are allocated at any one
time.

True, but it doesn't show mow many are used per fs.

FWIW, here are current stats on each cluster node (it's evening and 
lightly loaded)


gfs2_quotad           47    108    144   27    1 : tunables  120   60 
  8 : slabdata      4      4      0
gfs2_rgrpd          9563   9618    184   21    1 : tunables  120   60 
  8 : slabdata    458    458      0
gfs2_bufdata      318804 318840     96   40    1 : tunables  120   60 
  8 : slabdata   7971   7971      1
gfs2_inode        725605 725605    800    5    1 : tunables   54   27 
  8 : slabdata 145121 145121      0
gfs2_glock        738297 738297    424    9    1 : tunables   54   27 
  8 : slabdata  82033  82033      0

gfs2_quotad           94    189    144   27    1 : tunables  120   60 
  8 : slabdata      7      7      0
gfs2_rgrpd          1658   1680    184   21    1 : tunables  120   60 
  8 : slabdata     80     80      0
gfs2_bufdata      1065806 1067080     96   40    1 : tunables  120   60 
    8 : slabdata  26677  26677      0
gfs2_inode        986986 1024845    800    5    1 : tunables   54   27 
   8 : slabdata 204969 204969      0
gfs2_glock        1105575 1812825    424    9    1 : tunables   54   27 
    8 : slabdata 201425 201425      1

gfs2_quotad           45    108    144   27    1 : tunables  120   60 
  8 : slabdata      4      4      2
gfs2_rgrpd          6515   6573    184   21    1 : tunables  120   60 
  8 : slabdata    313    313      0
gfs2_bufdata      100785 101000     96   40    1 : tunables  120   60 
  8 : slabdata   2525   2525      0
gfs2_inode        2954515 2954515    800    5    1 : tunables   54   27 
    8 : slabdata 590903 590903      0
gfs2_glock        3332311 3639843    424    9    1 : tunables   54   27 
    8 : slabdata 404427 404427      0