== sanity test 124b: lru resize (performance test) ================================================================================= 08:11:14 (1786536674)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 2920 (time 1786536686.56 total 10.00 last 291.95)
 - open/close 5039 (time 1786536696.56 total 20.00 last 211.84)
 - open/close 7769 (time 1786536706.56 total 30.01 last 272.98)
total: 8000 open/close in 30.81 seconds: 259.68 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 117 seconds
lru_size = 400
 - unlinked 0 (time 1786536828 ; total 0 ; last 0)
total: 8000 unlinks in 47 seconds: 170.212769 unlinks/second
 - open/close 1325 (time 1786536887.82 total 10.00 last 132.45)
 - open/close 2170 (time 1786536897.83 total 20.02 last 84.38)
 - open/close 3023 (time 1786536907.84 total 30.02 last 85.27)
 - open/close 4125 (time 1786536917.84 total 40.03 last 110.14)
 - open/close 5325 (time 1786536927.85 total 50.03 last 119.95)
 - open/close 6563 (time 1786536937.85 total 60.04 last 123.72)
 - open/close 7610 (time 1786536947.86 total 70.04 last 104.64)
total: 8000 open/close in 73.39 seconds: 109.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 8005
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1786537014 ; total 0 ; last 0)
total: 8000 unlinks in 23 seconds: 347.826080 unlinks/second