== sanity test 124b: lru resize (performance test) ================================================================================= 10:29:02 (1790951342)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 802 (time 1790951357.74 total 10.01 last 80.15)
 - open/close 1627 (time 1790951367.74 total 20.01 last 82.49)
 - open/close 2492 (time 1790951377.75 total 30.02 last 86.38)
 - open/close 3305 (time 1790951387.75 total 40.02 last 81.28)
 - open/close 4065 (time 1790951397.76 total 50.03 last 75.93)
 - open/close 4897 (time 1790951407.76 total 60.03 last 83.19)
 - open/close 5638 (time 1790951417.77 total 70.04 last 74.03)
 - open/close 6454 (time 1790951427.78 total 80.05 last 81.58)
 - open/close 7302 (time 1790951437.79 total 90.06 last 84.68)
total: 8000 open/close in 98.64 seconds: 81.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 148 seconds
lru_size = 400
400
 - unlinked 0 (time 1790951605 ; total 0 ; last 0)
total: 8000 unlinks in 120 seconds: 66.666664 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 794 (time 1790951740.66 total 10.01 last 79.34)
 - open/close 1592 (time 1790951750.66 total 20.01 last 79.79)
 - open/close 2389 (time 1790951760.69 total 30.04 last 79.47)
 - open/close 3090 (time 1790951770.70 total 40.05 last 70.04)
 - open/close 3924 (time 1790951780.71 total 50.06 last 83.28)
 - open/close 4730 (time 1790951790.71 total 60.06 last 80.59)
 - open/close 5537 (time 1790951800.72 total 70.07 last 80.66)
 - open/close 6297 (time 1790951810.72 total 80.07 last 75.99)
 - open/close 7156 (time 1790951820.73 total 90.09 last 85.75)
total: 8000 open/close in 99.95 seconds: 80.04 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1790951937 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second