== sanity test 124b: lru resize (performance test) ================================================================================= 10:47:39 (1788274059)
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 1064 (time 1788274072.99 total 10.00 last 106.39)
 - open/close 2011 (time 1788274082.99 total 20.00 last 94.69)
 - open/close 3113 (time 1788274093.00 total 30.01 last 110.14)
 - open/close 4190 (time 1788274103.00 total 40.01 last 107.69)
 - open/close 5194 (time 1788274113.01 total 50.02 last 100.31)
 - open/close 5663 (time 1788274123.02 total 60.03 last 46.84)
 - open/close 6266 (time 1788274133.06 total 70.07 last 60.05)
 - open/close 6702 (time 1788274143.07 total 80.08 last 43.58)
 - open/close 7096 (time 1788274153.08 total 90.09 last 39.35)
 - open/close 7835 (time 1788274163.09 total 100.10 last 73.84)
total: 8000 open/close in 102.62 seconds: 77.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1788274329 ; total 0 ; last 0)
total: 8000 unlinks in 112 seconds: 71.428574 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 814 (time 1788274457.25 total 10.01 last 81.36)
 - open/close 1697 (time 1788274467.26 total 20.01 last 88.24)
 - open/close 2474 (time 1788274477.27 total 30.03 last 77.57)
 - open/close 3257 (time 1788274487.27 total 40.03 last 78.29)
 - open/close 4042 (time 1788274497.30 total 50.05 last 78.31)
 - open/close 4621 (time 1788274507.31 total 60.07 last 57.83)
 - open/close 5279 (time 1788274517.31 total 70.07 last 65.77)
 - open/close 6125 (time 1788274527.32 total 80.08 last 84.54)
 - open/close 6914 (time 1788274537.33 total 90.09 last 78.83)
 - open/close 7832 (time 1788274547.34 total 100.09 last 91.74)
total: 8000 open/close in 101.96 seconds: 78.46 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 44% faster with lru resize enabled
 - unlinked 0 (time 1788274662 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second