== sanity test 124b: lru resize (performance test) ================================================================================= 11:57:43 (1788623863)
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 658 (time 1788623878.64 total 10.00 last 65.77)
 - open/close 1361 (time 1788623888.64 total 20.01 last 70.29)
 - open/close 2154 (time 1788623898.66 total 30.02 last 79.19)
 - open/close 2879 (time 1788623908.67 total 40.03 last 72.43)
 - open/close 3666 (time 1788623918.67 total 50.03 last 78.68)
 - open/close 4442 (time 1788623928.67 total 60.03 last 77.58)
 - open/close 5200 (time 1788623938.68 total 70.05 last 75.71)
 - open/close 5940 (time 1788623948.69 total 80.05 last 73.97)
 - open/close 6674 (time 1788623958.69 total 90.05 last 73.37)
 - open/close 7410 (time 1788623968.70 total 100.06 last 73.54)
total: 8000 open/close in 108.20 seconds: 73.94 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 1788624145 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 749 (time 1788624263.63 total 10.02 last 74.74)
 - open/close 1414 (time 1788624273.64 total 20.04 last 66.40)
 - open/close 2065 (time 1788624283.64 total 30.04 last 65.10)
 - open/close 2681 (time 1788624293.67 total 40.06 last 61.43)
 - open/close 3184 (time 1788624303.68 total 50.08 last 50.24)
 - open/close 3912 (time 1788624313.69 total 60.08 last 72.76)
 - open/close 4603 (time 1788624323.69 total 70.08 last 69.09)
 - open/close 5283 (time 1788624333.70 total 80.09 last 67.93)
 - open/close 6043 (time 1788624343.70 total 90.10 last 75.97)
 - open/close 6777 (time 1788624353.71 total 100.10 last 73.35)
 - open/close 7356 (time 1788624363.73 total 110.13 last 57.78)
 - open/close 7866 (time 1788624373.76 total 120.15 last 50.86)
total: 8000 open/close in 122.73 seconds: 65.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788624480 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second