== sanity test 124b: lru resize (performance test) ================================================================================= 19:33:27 (1787614407)
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 814 (time 1787614421.68 total 10.01 last 81.31)
 - open/close 1682 (time 1787614431.69 total 20.02 last 86.74)
 - open/close 2482 (time 1787614441.69 total 30.02 last 79.96)
 - open/close 3305 (time 1787614451.70 total 40.03 last 82.27)
 - open/close 4081 (time 1787614461.70 total 50.04 last 77.54)
 - open/close 4911 (time 1787614471.71 total 60.04 last 82.93)
 - open/close 5732 (time 1787614481.72 total 70.06 last 82.01)
 - open/close 6394 (time 1787614491.73 total 80.06 last 66.14)
 - open/close 7163 (time 1787614501.74 total 90.07 last 76.87)
 - open/close 7969 (time 1787614511.74 total 100.07 last 80.59)
total: 8000 open/close in 100.54 seconds: 79.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 142 seconds
lru_size = 400
400
 - unlinked 0 (time 1787614666 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 769 (time 1787614781.25 total 10.00 last 76.87)
 - open/close 1633 (time 1787614791.26 total 20.01 last 86.36)
 - open/close 2540 (time 1787614801.26 total 30.01 last 90.69)
 - open/close 3294 (time 1787614811.26 total 40.01 last 75.39)
 - open/close 4079 (time 1787614821.29 total 50.04 last 78.27)
 - open/close 4854 (time 1787614831.29 total 60.04 last 77.48)
 - open/close 5758 (time 1787614841.29 total 70.04 last 90.39)
 - open/close 6569 (time 1787614851.29 total 80.04 last 81.09)
 - open/close 7409 (time 1787614861.30 total 90.05 last 83.97)
total: 8000 open/close in 96.79 seconds: 82.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1787614962 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second