== sanity test 124b: lru resize (performance test) ================================================================================= 21:25:59 (1788571559)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 717 (time 1788571574.92 total 10.01 last 71.63)
 - open/close 1674 (time 1788571584.93 total 20.01 last 95.66)
 - open/close 2677 (time 1788571594.93 total 30.02 last 100.28)
 - open/close 3677 (time 1788571604.94 total 40.02 last 99.92)
 - open/close 4471 (time 1788571614.94 total 50.03 last 79.35)
 - open/close 5448 (time 1788571624.94 total 60.03 last 97.70)
 - open/close 6304 (time 1788571634.95 total 70.04 last 85.54)
 - open/close 7023 (time 1788571644.96 total 80.05 last 71.80)
 - open/close 7685 (time 1788571654.97 total 90.06 last 66.15)
total: 8000 open/close in 95.50 seconds: 83.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 400
400
 - unlinked 0 (time 1788571783 ; 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 863 (time 1788571905.77 total 10.00 last 86.26)
 - open/close 1826 (time 1788571915.77 total 20.01 last 96.27)
 - open/close 2699 (time 1788571925.79 total 30.02 last 87.18)
 - open/close 3547 (time 1788571935.80 total 40.03 last 84.72)
 - open/close 4539 (time 1788571945.80 total 50.04 last 99.12)
 - open/close 5570 (time 1788571955.81 total 60.05 last 103.04)
 - open/close 6471 (time 1788571965.81 total 70.05 last 90.10)
 - open/close 7129 (time 1788571975.82 total 80.05 last 65.75)
 - open/close 7919 (time 1788571985.82 total 90.06 last 78.96)
total: 8000 open/close in 91.19 seconds: 87.73 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 98 seconds
lru_size = 4052
3955
ls -la is 9% faster with lru resize enabled
 - unlinked 0 (time 1788572107 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second