== sanity test 124b: lru resize (performance test) ================================================================================= 23:23:07 (1786072987)
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 944 (time 1786073001.77 total 10.00 last 94.39)
 - open/close 1750 (time 1786073011.78 total 20.00 last 80.57)
 - open/close 2704 (time 1786073021.78 total 30.01 last 95.37)
 - open/close 3757 (time 1786073031.78 total 40.01 last 105.26)
 - open/close 4732 (time 1786073041.80 total 50.02 last 97.38)
 - open/close 5328 (time 1786073051.85 total 60.07 last 59.31)
 - open/close 6204 (time 1786073061.85 total 70.08 last 87.56)
 - open/close 6817 (time 1786073071.86 total 80.08 last 61.26)
 - open/close 7439 (time 1786073081.87 total 90.10 last 62.11)
total: 8000 open/close in 96.43 seconds: 82.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 175 seconds
lru_size = 400
400
 - unlinked 0 (time 1786073276 ; total 0 ; last 0)
total: 8000 unlinks in 129 seconds: 62.015503 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 810 (time 1786073423.68 total 10.01 last 80.91)
 - open/close 1588 (time 1786073433.69 total 20.02 last 77.72)
 - open/close 2461 (time 1786073443.70 total 30.03 last 87.21)
 - open/close 3221 (time 1786073453.71 total 40.04 last 75.93)
 - open/close 4098 (time 1786073463.71 total 50.04 last 87.69)
 - open/close 4829 (time 1786073473.73 total 60.06 last 72.94)
 - open/close 5387 (time 1786073483.75 total 70.08 last 55.69)
 - open/close 6036 (time 1786073493.76 total 80.09 last 64.86)
 - open/close 6783 (time 1786073503.76 total 90.09 last 74.68)
 - open/close 7586 (time 1786073513.77 total 100.10 last 80.21)
total: 8000 open/close in 106.49 seconds: 75.12 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 44% faster with lru resize enabled
 - unlinked 0 (time 1786073643 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second