== sanity test 124b: lru resize (performance test) ================================================================================= 01:30:57 (1790746257)
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 889 (time 1790746272.14 total 10.00 last 88.87)
 - open/close 1730 (time 1790746282.14 total 20.01 last 84.07)
 - open/close 2557 (time 1790746292.15 total 30.01 last 82.69)
 - open/close 3411 (time 1790746302.15 total 40.02 last 85.34)
 - open/close 4230 (time 1790746312.16 total 50.03 last 81.80)
 - open/close 5082 (time 1790746322.18 total 60.04 last 85.10)
 - open/close 5963 (time 1790746332.18 total 70.04 last 88.05)
 - open/close 6805 (time 1790746342.18 total 80.05 last 84.18)
 - open/close 7595 (time 1790746352.19 total 90.06 last 78.93)
total: 8000 open/close in 94.37 seconds: 84.77 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 1790746518 ; 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 884 (time 1790746623.64 total 10.00 last 88.38)
 - open/close 1706 (time 1790746633.65 total 20.01 last 82.12)
 - open/close 2588 (time 1790746643.65 total 30.02 last 88.15)
 - open/close 3533 (time 1790746653.66 total 40.02 last 94.46)
 - open/close 4436 (time 1790746663.66 total 50.02 last 90.28)
 - open/close 5371 (time 1790746673.66 total 60.03 last 93.44)
 - open/close 6337 (time 1790746683.67 total 70.04 last 96.54)
 - open/close 7259 (time 1790746693.67 total 80.04 last 92.18)
total: 8000 open/close in 87.94 seconds: 90.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 73 seconds
lru_size = 4052
3956
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1790746791 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second