== sanity test 124b: lru resize (performance test) ================================================================================= 09:06:36 (1786971996)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 857 (time 1786972012.13 total 10.01 last 85.62)
 - open/close 1757 (time 1786972022.13 total 20.01 last 89.99)
 - open/close 2742 (time 1786972032.14 total 30.02 last 98.43)
 - open/close 3538 (time 1786972042.16 total 40.03 last 79.47)
 - open/close 4577 (time 1786972052.16 total 50.04 last 103.88)
 - open/close 5629 (time 1786972062.16 total 60.04 last 105.14)
 - open/close 6575 (time 1786972072.17 total 70.05 last 94.50)
 - open/close 7487 (time 1786972082.18 total 80.06 last 91.17)
total: 8000 open/close in 85.94 seconds: 93.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1786972253 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 991 (time 1786972360.65 total 10.01 last 99.00)
 - open/close 1822 (time 1786972370.66 total 20.01 last 83.08)
 - open/close 2668 (time 1786972380.66 total 30.02 last 84.58)
 - open/close 3447 (time 1786972390.66 total 40.02 last 77.87)
 - open/close 4438 (time 1786972400.68 total 50.03 last 98.97)
 - open/close 5468 (time 1786972410.68 total 60.04 last 102.94)
 - open/close 6575 (time 1786972420.70 total 70.06 last 110.49)
 - open/close 7524 (time 1786972430.70 total 80.06 last 94.88)
total: 8000 open/close in 84.50 seconds: 94.67 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1786972549 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second