== sanity test 124b: lru resize (performance test) ================================================================================= 01:26:35 (1789277195)
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 731 (time 1789277210.40 total 10.00 last 73.10)
 - open/close 1446 (time 1789277220.41 total 20.01 last 71.44)
 - open/close 2110 (time 1789277230.42 total 30.03 last 66.29)
 - open/close 2775 (time 1789277240.42 total 40.03 last 66.49)
 - open/close 3358 (time 1789277250.43 total 50.03 last 58.28)
 - open/close 3968 (time 1789277260.44 total 60.04 last 60.93)
 - open/close 4541 (time 1789277270.44 total 70.04 last 57.29)
 - open/close 5216 (time 1789277280.44 total 80.05 last 67.48)
 - open/close 5892 (time 1789277290.46 total 90.06 last 67.49)
 - open/close 6566 (time 1789277300.47 total 100.07 last 67.33)
 - open/close 7185 (time 1789277310.48 total 110.08 last 61.87)
 - open/close 7863 (time 1789277320.48 total 120.08 last 67.80)
total: 8000 open/close in 122.15 seconds: 65.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 183 seconds
lru_size = 400
400
 - unlinked 0 (time 1789277517 ; total 0 ; last 0)
total: 8000 unlinks in 126 seconds: 63.492062 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 681 (time 1789277658.56 total 10.02 last 67.98)
 - open/close 1376 (time 1789277668.57 total 20.03 last 69.42)
 - open/close 2073 (time 1789277678.58 total 30.03 last 69.67)
 - open/close 2785 (time 1789277688.59 total 40.04 last 71.14)
 - open/close 3525 (time 1789277698.59 total 50.04 last 73.99)
 - open/close 4241 (time 1789277708.59 total 60.05 last 71.55)
 - open/close 4981 (time 1789277718.60 total 70.06 last 73.93)
 - open/close 5752 (time 1789277728.61 total 80.07 last 77.03)
 - open/close 6492 (time 1789277738.62 total 90.08 last 73.93)
 - open/close 7219 (time 1789277748.63 total 100.09 last 72.61)
 - open/close 7937 (time 1789277758.64 total 110.10 last 71.75)
total: 8000 open/close in 111.09 seconds: 72.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1789277872 ; total 1 ; last 1)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second