== sanity test 124b: lru resize (performance test) ================================================================================= 09:03:52 (1789131832)
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 849 (time 1789131846.57 total 10.00 last 84.87)
 - open/close 1599 (time 1789131856.58 total 20.01 last 74.92)
 - open/close 2409 (time 1789131866.59 total 30.02 last 80.94)
 - open/close 3436 (time 1789131876.59 total 40.03 last 102.63)
 - open/close 4463 (time 1789131886.60 total 50.04 last 102.62)
 - open/close 5502 (time 1789131896.61 total 60.05 last 103.79)
 - open/close 6436 (time 1789131906.62 total 70.06 last 93.30)
 - open/close 7389 (time 1789131916.63 total 80.07 last 95.20)
total: 8000 open/close in 86.47 seconds: 92.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 151 seconds
lru_size = 400
400
 - unlinked 0 (time 1789132083 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 939 (time 1789132188.10 total 10.00 last 93.89)
 - open/close 1783 (time 1789132198.11 total 20.00 last 84.36)
 - open/close 2679 (time 1789132208.11 total 30.01 last 89.54)
 - open/close 3570 (time 1789132218.12 total 40.02 last 89.05)
 - open/close 4523 (time 1789132228.12 total 50.02 last 95.26)
 - open/close 5490 (time 1789132238.13 total 60.03 last 96.64)
 - open/close 6446 (time 1789132248.14 total 70.04 last 95.46)
 - open/close 7410 (time 1789132258.15 total 80.05 last 96.36)
total: 8000 open/close in 86.57 seconds: 92.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1789132370 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second