== sanity test 124b: lru resize (performance test) ================================================================================= 19:32:11 (1781220731)
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 998 (time 1781220747.06 total 10.00 last 99.78)
 - open/close 1972 (time 1781220757.06 total 20.01 last 97.36)
 - open/close 2724 (time 1781220767.08 total 30.02 last 75.08)
 - open/close 3656 (time 1781220777.09 total 40.03 last 93.11)
 - open/close 4309 (time 1781220787.10 total 50.05 last 65.20)
 - open/close 4942 (time 1781220797.12 total 60.06 last 63.22)
 - open/close 5732 (time 1781220807.13 total 70.07 last 78.92)
 - open/close 6657 (time 1781220817.13 total 80.08 last 92.41)
 - open/close 7498 (time 1781220827.14 total 90.08 last 84.09)
total: 8000 open/close in 98.29 seconds: 81.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1781221001 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 923 (time 1781221110.75 total 10.01 last 92.22)
 - open/close 1954 (time 1781221120.76 total 20.02 last 103.03)
 - open/close 3062 (time 1781221130.76 total 30.02 last 110.75)
 - open/close 4041 (time 1781221140.77 total 40.03 last 97.85)
 - open/close 4958 (time 1781221150.77 total 50.03 last 91.66)
 - open/close 5842 (time 1781221160.78 total 60.03 last 88.36)
 - open/close 6697 (time 1781221170.79 total 70.04 last 85.43)
 - open/close 7737 (time 1781221180.79 total 80.05 last 103.95)
total: 8000 open/close in 82.89 seconds: 96.51 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1781221284 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second