== sanity test 124b: lru resize (performance test) ================================================================================= 20:49:27 (1789692567)
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 1003 (time 1789692581.65 total 10.01 last 100.22)
 - open/close 2015 (time 1789692591.65 total 20.01 last 101.13)
 - open/close 3014 (time 1789692601.68 total 30.04 last 99.65)
 - open/close 3947 (time 1789692611.68 total 40.04 last 93.29)
 - open/close 5028 (time 1789692621.68 total 50.04 last 108.06)
 - open/close 6043 (time 1789692631.69 total 60.05 last 101.44)
 - open/close 6916 (time 1789692641.70 total 70.06 last 87.24)
 - open/close 7787 (time 1789692651.70 total 80.06 last 87.10)
total: 8000 open/close in 82.68 seconds: 96.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 135 seconds
lru_size = 400
400
 - unlinked 0 (time 1789692798 ; total 0 ; last 0)
total: 8000 unlinks in 75 seconds: 106.666664 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1180 (time 1789692888.27 total 10.00 last 117.98)
 - open/close 2256 (time 1789692898.27 total 20.00 last 107.60)
 - open/close 3411 (time 1789692908.27 total 30.00 last 115.47)
 - open/close 4433 (time 1789692918.28 total 40.01 last 102.16)
 - open/close 5585 (time 1789692928.28 total 50.01 last 115.18)
 - open/close 6524 (time 1789692938.29 total 60.02 last 93.79)
 - open/close 7576 (time 1789692948.29 total 70.02 last 105.18)
total: 8000 open/close in 74.44 seconds: 107.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4006
4001
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1789693049 ; total 0 ; last 0)
total: 8000 unlinks in 44 seconds: 181.818176 unlinks/second