== sanity test 124b: lru resize (performance test) ================================================================================= 07:03:37 (1788519817)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 789 (time 1788519832.78 total 10.02 last 78.75)
 - open/close 1541 (time 1788519842.78 total 20.02 last 75.17)
 - open/close 2372 (time 1788519852.79 total 30.03 last 83.03)
 - open/close 3245 (time 1788519862.80 total 40.04 last 87.24)
 - open/close 4219 (time 1788519872.81 total 50.05 last 97.29)
 - open/close 5251 (time 1788519882.82 total 60.06 last 103.09)
 - open/close 6252 (time 1788519892.82 total 70.07 last 100.05)
 - open/close 7142 (time 1788519902.83 total 80.07 last 88.95)
total: 8000 open/close in 88.97 seconds: 89.91 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 1788520076 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 957 (time 1788520185.96 total 10.01 last 95.64)
 - open/close 1903 (time 1788520195.97 total 20.02 last 94.50)
 - open/close 2738 (time 1788520205.97 total 30.03 last 83.43)
 - open/close 3682 (time 1788520215.98 total 40.03 last 94.39)
 - open/close 4661 (time 1788520225.99 total 50.04 last 97.74)
 - open/close 5593 (time 1788520236.01 total 60.06 last 93.05)
 - open/close 6505 (time 1788520246.04 total 70.09 last 90.94)
 - open/close 7380 (time 1788520256.05 total 80.10 last 87.41)
total: 8000 open/close in 86.25 seconds: 92.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788520374 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second