== sanity test 124b: lru resize (performance test) ================================================================================= 15:01:00 (1790794860)
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 832 (time 1790794875.02 total 10.01 last 83.16)
 - open/close 1605 (time 1790794885.03 total 20.02 last 77.19)
 - open/close 2404 (time 1790794895.04 total 30.03 last 79.81)
 - open/close 3224 (time 1790794905.05 total 40.04 last 81.93)
 - open/close 3951 (time 1790794915.05 total 50.04 last 72.69)
 - open/close 4720 (time 1790794925.07 total 60.06 last 76.74)
 - open/close 5473 (time 1790794935.08 total 70.06 last 75.29)
 - open/close 6197 (time 1790794945.10 total 80.08 last 72.26)
 - open/close 6961 (time 1790794955.11 total 90.09 last 76.31)
 - open/close 7693 (time 1790794965.13 total 100.12 last 73.04)
total: 8000 open/close in 104.21 seconds: 76.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1790795126 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 811 (time 1790795240.94 total 10.02 last 80.94)
 - open/close 1595 (time 1790795250.94 total 20.03 last 78.35)
 - open/close 2496 (time 1790795260.95 total 30.03 last 90.04)
 - open/close 3353 (time 1790795270.95 total 40.03 last 85.70)
 - open/close 4108 (time 1790795280.95 total 50.04 last 75.46)
 - open/close 4868 (time 1790795290.97 total 60.05 last 75.91)
 - open/close 5672 (time 1790795300.98 total 70.07 last 80.28)
 - open/close 6494 (time 1790795310.99 total 80.07 last 82.17)
 - open/close 7243 (time 1790795321.00 total 90.09 last 74.76)
total: 8000 open/close in 99.30 seconds: 80.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1790795430 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second