== sanity test 124b: lru resize (performance test) ================================================================================= 00:18:16 (1788754696)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 763 (time 1788754713.13 total 10.00 last 76.30)
 - open/close 1702 (time 1788754723.14 total 20.01 last 93.84)
 - open/close 2683 (time 1788754733.14 total 30.01 last 98.09)
 - open/close 3631 (time 1788754743.15 total 40.01 last 94.74)
 - open/close 4537 (time 1788754753.15 total 50.02 last 90.53)
 - open/close 5334 (time 1788754763.17 total 60.04 last 79.57)
 - open/close 6192 (time 1788754773.19 total 70.05 last 85.67)
 - open/close 6959 (time 1788754783.19 total 80.06 last 76.65)
 - open/close 7797 (time 1788754793.20 total 90.07 last 83.71)
total: 8000 open/close in 92.81 seconds: 86.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1788754965 ; total 0 ; last 0)
total: 8000 unlinks in 112 seconds: 71.428574 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 841 (time 1788755093.09 total 10.02 last 83.95)
 - open/close 1650 (time 1788755103.10 total 20.02 last 80.85)
 - open/close 2595 (time 1788755113.10 total 30.02 last 94.50)
 - open/close 3441 (time 1788755123.11 total 40.04 last 84.50)
 - open/close 4310 (time 1788755133.12 total 50.05 last 86.79)
 - open/close 5287 (time 1788755143.13 total 60.06 last 97.58)
 - open/close 6124 (time 1788755153.14 total 70.07 last 83.65)
 - open/close 6797 (time 1788755163.14 total 80.07 last 67.27)
 - open/close 7707 (time 1788755173.15 total 90.08 last 90.95)
total: 8000 open/close in 93.47 seconds: 85.59 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 4052
3955
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1788755297 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second