== sanity test 124b: lru resize (performance test) ================================================================================= 08:51:40 (1787403100)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 889 (time 1787403114.36 total 10.00 last 88.87)
 - open/close 1882 (time 1787403124.36 total 20.01 last 99.27)
 - open/close 2802 (time 1787403134.37 total 30.01 last 91.95)
 - open/close 3680 (time 1787403144.37 total 40.02 last 87.76)
 - open/close 4548 (time 1787403154.38 total 50.02 last 86.75)
 - open/close 5425 (time 1787403164.40 total 60.04 last 87.53)
 - open/close 6153 (time 1787403174.40 total 70.04 last 72.79)
 - open/close 7042 (time 1787403184.41 total 80.05 last 88.86)
 - open/close 7957 (time 1787403194.41 total 90.05 last 91.47)
total: 8000 open/close in 90.51 seconds: 88.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 157 seconds
lru_size = 400
400
 - unlinked 0 (time 1787403363 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1005 (time 1787403472.10 total 10.01 last 100.35)
 - open/close 1802 (time 1787403482.11 total 20.02 last 79.65)
 - open/close 2571 (time 1787403492.14 total 30.05 last 76.68)
 - open/close 3515 (time 1787403502.14 total 40.05 last 94.37)
 - open/close 4524 (time 1787403512.14 total 50.06 last 100.88)
 - open/close 5373 (time 1787403522.15 total 60.06 last 84.88)
 - open/close 6305 (time 1787403532.15 total 70.06 last 93.18)
 - open/close 7293 (time 1787403542.15 total 80.07 last 98.76)
total: 8000 open/close in 87.19 seconds: 91.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4006
4001
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1787403660 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second