== sanity test 124b: lru resize (performance test) ================================================================================= 17:22:34 (1787865754)
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 825 (time 1787865769.55 total 10.01 last 82.42)
 - open/close 1559 (time 1787865779.55 total 20.01 last 73.36)
 - open/close 2277 (time 1787865789.57 total 30.03 last 71.68)
 - open/close 3096 (time 1787865799.59 total 40.05 last 81.75)
 - open/close 4030 (time 1787865809.59 total 50.06 last 93.34)
 - open/close 4913 (time 1787865819.60 total 60.06 last 88.28)
 - open/close 5743 (time 1787865829.60 total 70.07 last 82.92)
 - open/close 6642 (time 1787865839.61 total 80.07 last 89.86)
 - open/close 7427 (time 1787865849.61 total 90.08 last 78.47)
total: 8000 open/close in 96.38 seconds: 83.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 163 seconds
lru_size = 400
400
 - unlinked 0 (time 1787866031 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 888 (time 1787866136.10 total 10.00 last 88.78)
 - open/close 1731 (time 1787866146.12 total 20.02 last 84.18)
 - open/close 2660 (time 1787866156.12 total 30.02 last 92.88)
 - open/close 3600 (time 1787866166.12 total 40.02 last 93.98)
 - open/close 4553 (time 1787866176.12 total 50.02 last 95.27)
 - open/close 5447 (time 1787866186.13 total 60.03 last 89.36)
 - open/close 6359 (time 1787866196.13 total 70.03 last 91.20)
 - open/close 7325 (time 1787866206.14 total 80.04 last 96.45)
total: 8000 open/close in 88.34 seconds: 90.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1787866316 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second