== sanity test 124b: lru resize (performance test) ================================================================================= 07:03:21 (1787828601)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 756 (time 1787828615.61 total 10.01 last 75.53)
 - open/close 1547 (time 1787828625.62 total 20.02 last 79.05)
 - open/close 2354 (time 1787828635.62 total 30.02 last 80.67)
 - open/close 3070 (time 1787828645.62 total 40.02 last 71.60)
 - open/close 3910 (time 1787828655.63 total 50.03 last 83.92)
 - open/close 4661 (time 1787828665.63 total 60.04 last 75.06)
 - open/close 5438 (time 1787828675.65 total 70.05 last 77.55)
 - open/close 6157 (time 1787828685.66 total 80.06 last 71.83)
 - open/close 6852 (time 1787828695.68 total 90.08 last 69.41)
 - open/close 7504 (time 1787828705.68 total 100.08 last 65.19)
total: 8000 open/close in 108.00 seconds: 74.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 95 seconds
lru_size = 400
400
 - unlinked 0 (time 1787828818 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 740 (time 1787828938.23 total 10.01 last 73.92)
 - open/close 1586 (time 1787828948.24 total 20.02 last 84.51)
 - open/close 2369 (time 1787828958.25 total 30.03 last 78.20)
 - open/close 3023 (time 1787828968.26 total 40.04 last 65.38)
 - open/close 3766 (time 1787828978.26 total 50.05 last 74.25)
 - open/close 4507 (time 1787828988.27 total 60.05 last 74.07)
 - open/close 5301 (time 1787828998.28 total 70.06 last 79.34)
 - open/close 6099 (time 1787829008.28 total 80.06 last 79.77)
 - open/close 6847 (time 1787829018.29 total 90.07 last 74.72)
 - open/close 7617 (time 1787829028.30 total 100.09 last 76.89)
total: 8000 open/close in 104.93 seconds: 76.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 102 seconds
lru_size = 4006
4001
ls -la is 7% slower with lru resize enabled
 - unlinked 0 (time 1787829158 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second