== sanity test 124b: lru resize (performance test) ================================================================================= 02:26:30 (1786429590)
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 991 (time 1786429606.26 total 10.00 last 99.06)
 - open/close 1835 (time 1786429616.28 total 20.02 last 84.25)
 - open/close 2802 (time 1786429626.28 total 30.02 last 96.67)
 - open/close 3715 (time 1786429636.29 total 40.03 last 91.26)
 - open/close 4678 (time 1786429646.31 total 50.05 last 96.13)
 - open/close 5573 (time 1786429656.31 total 60.05 last 89.45)
 - open/close 6476 (time 1786429666.32 total 70.07 last 90.18)
 - open/close 7312 (time 1786429676.33 total 80.07 last 83.60)
total: 8000 open/close in 88.57 seconds: 90.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 103 seconds
lru_size = 400
400
 - unlinked 0 (time 1786429798 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 891 (time 1786429911.08 total 10.01 last 89.01)
 - open/close 1844 (time 1786429921.10 total 20.02 last 95.16)
 - open/close 2802 (time 1786429931.10 total 30.03 last 95.78)
 - open/close 3768 (time 1786429941.10 total 40.03 last 96.57)
 - open/close 4747 (time 1786429951.11 total 50.04 last 97.83)
 - open/close 5491 (time 1786429961.12 total 60.05 last 74.31)
 - open/close 6250 (time 1786429971.13 total 70.05 last 75.87)
 - open/close 7068 (time 1786429981.14 total 80.06 last 81.72)
total: 8000 open/close in 90.03 seconds: 88.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 100 seconds
lru_size = 4052
3955
ls -la is 2% faster with lru resize enabled
 - unlinked 0 (time 1786430113 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second