== sanity test 124b: lru resize (performance test) ================================================================================= 13:21:48 (1786641708)
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 981 (time 1786641723.10 total 10.00 last 98.06)
 - open/close 1939 (time 1786641733.11 total 20.01 last 95.75)
 - open/close 3010 (time 1786641743.11 total 30.02 last 107.05)
 - open/close 4087 (time 1786641753.12 total 40.02 last 107.68)
 - open/close 5109 (time 1786641763.12 total 50.02 last 102.14)
 - open/close 6281 (time 1786641773.12 total 60.02 last 117.19)
 - open/close 7316 (time 1786641783.13 total 70.03 last 103.47)
total: 8000 open/close in 77.19 seconds: 103.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1786641940 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1076 (time 1786642050.18 total 10.00 last 107.56)
 - open/close 1952 (time 1786642060.18 total 20.01 last 87.57)
 - open/close 2918 (time 1786642070.20 total 30.02 last 96.47)
 - open/close 3943 (time 1786642080.20 total 40.02 last 102.49)
 - open/close 5038 (time 1786642090.20 total 50.03 last 109.46)
 - open/close 5971 (time 1786642100.20 total 60.03 last 93.29)
 - open/close 6965 (time 1786642110.20 total 70.03 last 99.39)
 - open/close 7993 (time 1786642120.21 total 80.03 last 102.73)
total: 8000 open/close in 80.09 seconds: 99.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1786642226 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second