== sanity test 124b: lru resize (performance test) ================================================================================= 03:25:04 (1789716304)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1071 (time 1789716317.55 total 10.01 last 106.99)
 - open/close 2124 (time 1789716327.55 total 20.01 last 105.27)
 - open/close 3207 (time 1789716337.56 total 30.02 last 108.24)
 - open/close 4276 (time 1789716347.56 total 40.02 last 106.88)
 - open/close 5317 (time 1789716357.57 total 50.03 last 103.99)
 - open/close 6367 (time 1789716367.58 total 60.04 last 104.95)
 - open/close 7491 (time 1789716377.58 total 70.04 last 112.35)
total: 8000 open/close in 74.55 seconds: 107.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 400
 - unlinked 0 (time 1789716483 ; total 0 ; last 0)
total: 8000 unlinks in 50 seconds: 160.000000 unlinks/second
 - open/close 1225 (time 1789716546.04 total 10.01 last 122.42)
 - open/close 2458 (time 1789716556.04 total 20.01 last 123.28)
 - open/close 3570 (time 1789716566.07 total 30.03 last 110.93)
 - open/close 4254 (time 1789716576.07 total 40.04 last 68.36)
 - open/close 5562 (time 1789716586.07 total 50.04 last 130.80)
 - open/close 6935 (time 1789716596.08 total 60.04 last 137.23)
total: 8000 open/close in 65.68 seconds: 121.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 49 seconds
lru_size = 8005
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1789716660 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second