== sanity test 124b: lru resize (performance test) ================================================================================= 03:41:36 (1787125296)
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 859 (time 1787125310.77 total 10.01 last 85.85)
 - open/close 1662 (time 1787125320.77 total 20.01 last 80.27)
 - open/close 2517 (time 1787125330.77 total 30.01 last 85.48)
 - open/close 3426 (time 1787125340.77 total 40.01 last 90.88)
 - open/close 4186 (time 1787125350.78 total 50.02 last 75.96)
 - open/close 5052 (time 1787125360.79 total 60.03 last 86.54)
 - open/close 5905 (time 1787125370.79 total 70.03 last 85.27)
 - open/close 6724 (time 1787125380.80 total 80.04 last 81.84)
 - open/close 7537 (time 1787125390.80 total 90.04 last 81.27)
total: 8000 open/close in 96.36 seconds: 83.02 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 157 seconds
lru_size = 400
400
 - unlinked 0 (time 1787125564 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 891 (time 1787125671.95 total 10.01 last 89.03)
 - open/close 1745 (time 1787125681.96 total 20.01 last 85.38)
 - open/close 2575 (time 1787125691.97 total 30.02 last 82.90)
 - open/close 3347 (time 1787125701.97 total 40.02 last 77.19)
 - open/close 4233 (time 1787125711.99 total 50.04 last 88.42)
 - open/close 5048 (time 1787125722.00 total 60.06 last 81.39)
 - open/close 5927 (time 1787125732.02 total 70.07 last 87.80)
 - open/close 6781 (time 1787125742.03 total 80.08 last 85.29)
 - open/close 7566 (time 1787125752.03 total 90.09 last 78.46)
total: 8000 open/close in 95.28 seconds: 83.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4006
4001
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1787125855 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second