== sanity test 124b: lru resize (performance test) ================================================================================= 18:22:40 (1788474160)
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 668 (time 1788474176.26 total 10.01 last 66.72)
 - open/close 1466 (time 1788474186.27 total 20.01 last 79.79)
 - open/close 2243 (time 1788474196.27 total 30.02 last 77.67)
 - open/close 3010 (time 1788474206.27 total 40.02 last 76.67)
 - open/close 3721 (time 1788474216.29 total 50.04 last 70.98)
 - open/close 4338 (time 1788474226.30 total 60.04 last 61.66)
 - open/close 4884 (time 1788474236.30 total 70.05 last 54.59)
 - open/close 5589 (time 1788474246.32 total 80.06 last 70.36)
 - open/close 6386 (time 1788474256.32 total 90.07 last 79.66)
 - open/close 7080 (time 1788474266.32 total 100.07 last 69.40)
 - open/close 7907 (time 1788474276.33 total 110.08 last 82.60)
total: 8000 open/close in 111.04 seconds: 72.05 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 177 seconds
lru_size = 400
400
 - unlinked 0 (time 1788474466 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 873 (time 1788474576.13 total 10.00 last 87.26)
 - open/close 1759 (time 1788474586.14 total 20.02 last 88.48)
 - open/close 2710 (time 1788474596.15 total 30.03 last 95.01)
 - open/close 3566 (time 1788474606.15 total 40.03 last 85.58)
 - open/close 4327 (time 1788474616.16 total 50.04 last 76.05)
 - open/close 5154 (time 1788474626.16 total 60.04 last 82.67)
 - open/close 6108 (time 1788474636.16 total 70.04 last 95.37)
 - open/close 6983 (time 1788474646.17 total 80.04 last 87.48)
 - open/close 7948 (time 1788474656.17 total 90.05 last 96.44)
total: 8000 open/close in 90.60 seconds: 88.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1788474765 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second