== sanity test 124b: lru resize (performance test) ================================================================================= 22:27:09 (1787624829)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 788 (time 1787624844.87 total 10.00 last 78.80)
 - open/close 1495 (time 1787624854.88 total 20.02 last 70.58)
 - open/close 2263 (time 1787624864.88 total 30.02 last 76.79)
 - open/close 2909 (time 1787624874.89 total 40.03 last 64.53)
 - open/close 3666 (time 1787624884.90 total 50.03 last 75.67)
 - open/close 4457 (time 1787624894.90 total 60.03 last 79.10)
 - open/close 5106 (time 1787624904.91 total 70.05 last 64.82)
 - open/close 5754 (time 1787624914.91 total 80.05 last 64.80)
 - open/close 6477 (time 1787624924.93 total 90.07 last 72.13)
 - open/close 7167 (time 1787624934.94 total 100.07 last 68.98)
 - open/close 7883 (time 1787624944.94 total 110.08 last 71.56)
total: 8000 open/close in 111.82 seconds: 71.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 171 seconds
lru_size = 400
400
 - unlinked 0 (time 1787625129 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 805 (time 1787625250.83 total 10.00 last 80.46)
 - open/close 1579 (time 1787625260.84 total 20.02 last 77.29)
 - open/close 2326 (time 1787625270.84 total 30.02 last 74.68)
 - open/close 2990 (time 1787625280.86 total 40.03 last 66.32)
 - open/close 3616 (time 1787625290.86 total 50.04 last 62.59)
 - open/close 4406 (time 1787625300.86 total 60.04 last 78.95)
 - open/close 5129 (time 1787625310.87 total 70.05 last 72.23)
 - open/close 5761 (time 1787625320.88 total 80.06 last 63.14)
 - open/close 6449 (time 1787625330.89 total 90.07 last 68.73)
 - open/close 7254 (time 1787625340.89 total 100.07 last 80.49)
total: 8000 open/close in 109.80 seconds: 72.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 103 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1787625477 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second