== sanity test 124b: lru resize (performance test) ================================================================================= 21:40:59 (1746150059)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 788 (time 1746150074.32 total 10.01 last 78.70)
 - open/close 1630 (time 1746150084.32 total 20.02 last 84.15)
 - open/close 2427 (time 1746150094.34 total 30.03 last 79.61)
 - open/close 3336 (time 1746150104.34 total 40.03 last 90.87)
 - open/close 4196 (time 1746150114.35 total 50.05 last 85.87)
 - open/close 5147 (time 1746150124.35 total 60.05 last 95.09)
 - open/close 5892 (time 1746150134.36 total 70.06 last 74.43)
 - open/close 6670 (time 1746150144.37 total 80.06 last 77.76)
 - open/close 7455 (time 1746150154.37 total 90.07 last 78.47)
total: 8000 open/close in 95.95 seconds: 83.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 128 seconds
lru_size = 400
400
 - unlinked 0 (time 1746150294 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 987 (time 1746150392.95 total 10.01 last 98.64)
 - open/close 1749 (time 1746150402.95 total 20.01 last 76.18)
 - open/close 2596 (time 1746150412.96 total 30.01 last 84.68)
 - open/close 3456 (time 1746150422.96 total 40.02 last 85.95)
 - open/close 4468 (time 1746150432.97 total 50.02 last 101.12)
 - open/close 5286 (time 1746150442.97 total 60.03 last 81.79)
 - open/close 5956 (time 1746150452.98 total 70.03 last 66.95)
 - open/close 6694 (time 1746150462.99 total 80.05 last 73.69)
 - open/close 7399 (time 1746150472.99 total 90.05 last 70.50)
total: 8000 open/close in 98.63 seconds: 81.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 4052
3955
ls -la is 60% faster with lru resize enabled
 - unlinked 0 (time 1746150543 ; total 0 ; last 0)
total: 8000 unlinks in 49 seconds: 163.265305 unlinks/second