== sanity test 124b: lru resize (performance test) ================================================================================= 07:42:52 (1788694972)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1034 (time 1788694986.11 total 10.01 last 103.28)
 - open/close 2111 (time 1788694996.12 total 20.02 last 107.65)
 - open/close 3108 (time 1788695006.12 total 30.02 last 99.63)
 - open/close 4124 (time 1788695016.13 total 40.03 last 101.52)
 - open/close 5176 (time 1788695026.13 total 50.03 last 105.17)
 - open/close 6149 (time 1788695036.14 total 60.04 last 97.25)
 - open/close 7140 (time 1788695046.15 total 70.05 last 99.04)
total: 8000 open/close in 78.80 seconds: 101.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 117 seconds
lru_size = 400
 - unlinked 0 (time 1788695179 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second
 - open/close 1229 (time 1788695253.50 total 10.01 last 122.80)
 - open/close 2334 (time 1788695263.50 total 20.01 last 110.49)
 - open/close 3379 (time 1788695273.50 total 30.01 last 104.44)
 - open/close 4361 (time 1788695283.51 total 40.02 last 98.16)
 - open/close 5294 (time 1788695293.51 total 50.02 last 93.27)
 - open/close 6329 (time 1788695303.52 total 60.03 last 103.44)
 - open/close 7376 (time 1788695313.52 total 70.04 last 104.62)
total: 8000 open/close in 76.10 seconds: 105.12 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 52 seconds
lru_size = 8005
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1788695385 ; total 0 ; last 0)
total: 8000 unlinks in 45 seconds: 177.777771 unlinks/second