== sanity test 124b: lru resize (performance test) ================================================================================= 15:42:54 (1780342974)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1182 (time 1780342986.98 total 10.00 last 118.17)
 - open/close 2338 (time 1780342996.99 total 20.00 last 115.58)
 - open/close 3540 (time 1780343006.99 total 30.01 last 120.16)
 - open/close 4650 (time 1780343016.99 total 40.01 last 110.94)
 - open/close 5788 (time 1780343027.00 total 50.01 last 113.78)
 - open/close 6813 (time 1780343037.00 total 60.02 last 102.49)
 - open/close 7965 (time 1780343047.01 total 70.03 last 115.08)
total: 8000 open/close in 70.42 seconds: 113.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 118 seconds
lru_size = 400
400
 - unlinked 0 (time 1780343172 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1103 (time 1780343241.74 total 10.00 last 110.28)
 - open/close 2224 (time 1780343251.74 total 20.01 last 112.06)
 - open/close 3392 (time 1780343261.74 total 30.01 last 116.76)
 - open/close 4553 (time 1780343271.74 total 40.01 last 116.09)
 - open/close 5795 (time 1780343281.75 total 50.02 last 124.06)
 - open/close 7010 (time 1780343291.76 total 60.03 last 121.42)
total: 8000 open/close in 68.04 seconds: 117.58 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 4052
3955
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1780343363 ; total 0 ; last 0)
total: 8000 unlinks in 43 seconds: 186.046509 unlinks/second