== sanity test 124b: lru resize (performance test) ================================================================================= 00:56:02 (1790744162)
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 863 (time 1790744176.99 total 10.01 last 86.26)
 - open/close 1628 (time 1790744186.99 total 20.01 last 76.47)
 - open/close 2447 (time 1790744196.99 total 30.01 last 81.87)
 - open/close 3267 (time 1790744207.00 total 40.01 last 81.98)
 - open/close 4093 (time 1790744217.01 total 50.03 last 82.47)
 - open/close 4889 (time 1790744227.02 total 60.04 last 79.54)
 - open/close 5646 (time 1790744237.04 total 70.06 last 75.53)
 - open/close 6403 (time 1790744247.07 total 80.08 last 75.52)
 - open/close 7062 (time 1790744257.07 total 90.09 last 65.88)
 - open/close 7870 (time 1790744267.08 total 100.09 last 80.74)
total: 8000 open/close in 101.83 seconds: 78.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1790744432 ; total 0 ; last 0)
total: 8000 unlinks in 102 seconds: 78.431374 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 805 (time 1790744549.53 total 10.01 last 80.38)
 - open/close 1562 (time 1790744559.53 total 20.02 last 75.66)
 - open/close 2387 (time 1790744569.54 total 30.03 last 82.44)
 - open/close 3209 (time 1790744579.56 total 40.05 last 82.04)
 - open/close 4009 (time 1790744589.57 total 50.05 last 79.95)
 - open/close 4825 (time 1790744599.57 total 60.06 last 81.58)
 - open/close 5638 (time 1790744609.58 total 70.06 last 81.24)
 - open/close 6497 (time 1790744619.58 total 80.07 last 85.88)
 - open/close 7301 (time 1790744629.59 total 90.07 last 80.33)
total: 8000 open/close in 99.49 seconds: 80.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 4006
4001
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1790744755 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second