== sanity test 124b: lru resize (performance test) ================================================================================= 18:29:01 (1777588141)
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 835 (time 1777588155.93 total 10.00 last 83.47)
 - open/close 1611 (time 1777588165.94 total 20.02 last 77.50)
 - open/close 2229 (time 1777588175.95 total 30.02 last 61.78)
 - open/close 3005 (time 1777588185.96 total 40.03 last 77.54)
 - open/close 3820 (time 1777588195.96 total 50.03 last 81.48)
 - open/close 4644 (time 1777588205.97 total 60.04 last 82.31)
 - open/close 5479 (time 1777588215.98 total 70.05 last 83.45)
 - open/close 6273 (time 1777588225.99 total 80.06 last 79.32)
 - open/close 7065 (time 1777588235.99 total 90.06 last 79.17)
 - open/close 7892 (time 1777588246.00 total 100.07 last 82.63)
total: 8000 open/close in 101.37 seconds: 78.92 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 1777588408 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 835 (time 1777588511.27 total 10.01 last 83.45)
 - open/close 1724 (time 1777588521.29 total 20.02 last 88.76)
 - open/close 2529 (time 1777588531.30 total 30.03 last 80.43)
 - open/close 3415 (time 1777588541.30 total 40.03 last 88.59)
 - open/close 4260 (time 1777588551.31 total 50.05 last 84.35)
 - open/close 5097 (time 1777588561.32 total 60.05 last 83.68)
 - open/close 5910 (time 1777588571.32 total 70.05 last 81.26)
 - open/close 6735 (time 1777588581.32 total 80.06 last 82.48)
 - open/close 7569 (time 1777588591.33 total 90.06 last 83.34)
total: 8000 open/close in 95.38 seconds: 83.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 62 seconds
lru_size = 4052
3955
ls -la is 59% faster with lru resize enabled
 - unlinked 0 (time 1777588673 ; total 0 ; last 0)
total: 8000 unlinks in 51 seconds: 156.862747 unlinks/second