== sanity test 124b: lru resize (performance test) ================================================================================= 22:08:00 (1789610880)
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 876 (time 1789610895.67 total 10.01 last 87.47)
 - open/close 1736 (time 1789610905.68 total 20.02 last 85.95)
 - open/close 2548 (time 1789610915.68 total 30.02 last 81.19)
 - open/close 3334 (time 1789610925.70 total 40.04 last 78.46)
 - open/close 4163 (time 1789610935.70 total 50.05 last 82.83)
 - open/close 4900 (time 1789610945.71 total 60.05 last 73.67)
 - open/close 5703 (time 1789610955.73 total 70.07 last 80.16)
 - open/close 6544 (time 1789610965.74 total 80.08 last 83.98)
 - open/close 7380 (time 1789610975.74 total 90.09 last 83.57)
total: 8000 open/close in 97.39 seconds: 82.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1789611149 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 887 (time 1789611263.27 total 10.00 last 88.67)
 - open/close 1738 (time 1789611273.27 total 20.00 last 85.10)
 - open/close 2520 (time 1789611283.28 total 30.02 last 78.10)
 - open/close 3412 (time 1789611293.31 total 40.05 last 88.92)
 - open/close 4271 (time 1789611303.32 total 50.06 last 85.83)
 - open/close 5182 (time 1789611313.33 total 60.06 last 91.04)
 - open/close 6059 (time 1789611323.34 total 70.08 last 87.57)
 - open/close 6980 (time 1789611333.35 total 80.08 last 92.05)
 - open/close 7851 (time 1789611343.35 total 90.09 last 87.08)
total: 8000 open/close in 91.65 seconds: 87.29 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1789611446 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second