== sanity test 124b: lru resize (performance test) ================================================================================= 05:02:18 (1761296538)
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 883 (time 1761296551.42 total 10.03 last 88.07)
 - open/close 1704 (time 1761296561.42 total 20.03 last 82.05)
 - open/close 2542 (time 1761296571.43 total 30.03 last 83.77)
 - open/close 3404 (time 1761296581.43 total 40.04 last 86.16)
 - open/close 4296 (time 1761296591.43 total 50.04 last 89.20)
 - open/close 5200 (time 1761296601.44 total 60.05 last 90.35)
 - open/close 6133 (time 1761296611.44 total 70.05 last 93.27)
 - open/close 7110 (time 1761296621.44 total 80.05 last 97.67)
total: 8000 open/close in 89.14 seconds: 89.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 127 seconds
lru_size = 400
400
 - unlinked 0 (time 1761296765 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 784 (time 1761296874.05 total 10.02 last 78.27)
 - open/close 1648 (time 1761296884.05 total 20.02 last 86.39)
 - open/close 2552 (time 1761296894.05 total 30.02 last 90.37)
 - open/close 3389 (time 1761296904.06 total 40.02 last 83.69)
 - open/close 4208 (time 1761296914.06 total 50.03 last 81.86)
 - open/close 4951 (time 1761296924.14 total 60.10 last 73.75)
 - open/close 5681 (time 1761296934.16 total 70.12 last 72.84)
 - open/close 6613 (time 1761296944.16 total 80.13 last 93.13)
 - open/close 7452 (time 1761296954.17 total 90.13 last 83.89)
total: 8000 open/close in 95.79 seconds: 83.51 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 60 seconds
lru_size = 4052
3955
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1761297035 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second