== sanity test 124b: lru resize (performance test) ================================================================================= 06:14:31 (1788516871)
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 965 (time 1788516886.02 total 10.00 last 96.47)
 - open/close 1867 (time 1788516896.03 total 20.01 last 90.09)
 - open/close 2797 (time 1788516906.04 total 30.02 last 92.96)
 - open/close 3683 (time 1788516916.05 total 40.03 last 88.54)
 - open/close 4598 (time 1788516926.05 total 50.03 last 91.46)
 - open/close 5490 (time 1788516936.05 total 60.03 last 89.20)
 - open/close 6374 (time 1788516946.06 total 70.04 last 88.32)
 - open/close 7231 (time 1788516956.07 total 80.05 last 85.64)
total: 8000 open/close in 88.98 seconds: 89.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 400
400
 - unlinked 0 (time 1788517070 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 970 (time 1788517181.89 total 10.01 last 96.88)
 - open/close 1861 (time 1788517191.89 total 20.02 last 89.03)
 - open/close 2757 (time 1788517201.90 total 30.03 last 89.51)
 - open/close 3699 (time 1788517211.92 total 40.04 last 94.07)
 - open/close 4642 (time 1788517221.92 total 50.04 last 94.29)
 - open/close 5629 (time 1788517231.92 total 60.05 last 98.67)
 - open/close 6562 (time 1788517241.93 total 70.06 last 93.21)
 - open/close 7415 (time 1788517251.94 total 80.06 last 85.27)
total: 8000 open/close in 85.98 seconds: 93.05 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 9% faster with lru resize enabled
 - unlinked 0 (time 1788517362 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second