== sanity test 124b: lru resize (performance test) ================================================================================= 18:06:20 (1787781980)
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 968 (time 1787781993.70 total 10.01 last 96.73)
 - open/close 1836 (time 1787782003.71 total 20.02 last 86.73)
 - open/close 2713 (time 1787782013.72 total 30.02 last 87.62)
 - open/close 3505 (time 1787782023.73 total 40.03 last 79.13)
 - open/close 4366 (time 1787782033.76 total 50.06 last 85.87)
 - open/close 5216 (time 1787782043.76 total 60.06 last 84.99)
 - open/close 5790 (time 1787782053.77 total 70.07 last 57.35)
 - open/close 6571 (time 1787782063.78 total 80.08 last 77.99)
 - open/close 7441 (time 1787782073.78 total 90.09 last 86.97)
total: 8000 open/close in 96.56 seconds: 82.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 143 seconds
lru_size = 400
400
 - unlinked 0 (time 1787782234 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 891 (time 1787782338.84 total 10.00 last 89.06)
 - open/close 1757 (time 1787782348.85 total 20.01 last 86.51)
 - open/close 2648 (time 1787782358.87 total 30.03 last 88.99)
 - open/close 3642 (time 1787782368.87 total 40.04 last 99.31)
 - open/close 4518 (time 1787782378.88 total 50.04 last 87.55)
 - open/close 5356 (time 1787782388.89 total 60.05 last 83.74)
 - open/close 6274 (time 1787782398.90 total 70.06 last 91.68)
 - open/close 7168 (time 1787782408.91 total 80.07 last 89.35)
 - open/close 7968 (time 1787782418.91 total 90.07 last 79.99)
total: 8000 open/close in 90.36 seconds: 88.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1787782523 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second