== sanity test 124b: lru resize (performance test) ================================================================================= 17:54:22 (1789682062)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1241 (time 1789682074.55 total 10.00 last 124.10)
 - open/close 2436 (time 1789682084.56 total 20.00 last 119.48)
 - open/close 3907 (time 1789682094.56 total 30.01 last 147.03)
 - open/close 5236 (time 1789682104.57 total 40.01 last 132.82)
 - open/close 6402 (time 1789682114.58 total 50.02 last 116.50)
 - open/close 7812 (time 1789682124.58 total 60.02 last 140.95)
total: 8000 open/close in 61.46 seconds: 130.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 400
 - unlinked 0 (time 1789682219 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second
 - open/close 1424 (time 1789682283.96 total 10.00 last 142.39)
 - open/close 2844 (time 1789682293.97 total 20.00 last 141.95)
 - open/close 4506 (time 1789682303.97 total 30.01 last 166.15)
 - open/close 6076 (time 1789682313.98 total 40.01 last 156.93)
 - open/close 7774 (time 1789682323.98 total 50.01 last 169.76)
total: 8000 open/close in 50.92 seconds: 157.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 39 seconds
lru_size = 8005
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1789682372 ; total 0 ; last 0)
total: 8000 unlinks in 30 seconds: 266.666656 unlinks/second