== sanity test 124b: lru resize (performance test) ================================================================================= 18:42:12 (1786315332)
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 854 (time 1786315346.99 total 10.00 last 85.37)
 - open/close 1625 (time 1786315356.99 total 20.00 last 77.09)
 - open/close 2567 (time 1786315366.99 total 30.01 last 94.16)
 - open/close 3366 (time 1786315377.00 total 40.01 last 79.85)
 - open/close 4180 (time 1786315387.00 total 50.02 last 81.37)
 - open/close 5127 (time 1786315397.01 total 60.02 last 94.64)
 - open/close 5934 (time 1786315407.02 total 70.04 last 80.60)
 - open/close 6784 (time 1786315417.03 total 80.05 last 84.90)
 - open/close 7386 (time 1786315427.05 total 90.07 last 60.10)
total: 8000 open/close in 98.58 seconds: 81.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 114 seconds
lru_size = 400
400
 - unlinked 0 (time 1786315562 ; total 1 ; last 1)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 889 (time 1786315673.11 total 10.00 last 88.90)
 - open/close 1845 (time 1786315683.11 total 20.00 last 95.58)
 - open/close 2810 (time 1786315693.11 total 30.00 last 96.50)
 - open/close 3754 (time 1786315703.11 total 40.01 last 94.37)
 - open/close 4652 (time 1786315713.12 total 50.01 last 89.74)
 - open/close 5577 (time 1786315723.13 total 60.02 last 92.45)
 - open/close 6384 (time 1786315733.13 total 70.02 last 80.70)
 - open/close 7221 (time 1786315743.13 total 80.02 last 83.67)
total: 8000 open/close in 88.68 seconds: 90.21 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4006
4001
ls -la is 20% faster with lru resize enabled
 - unlinked 0 (time 1786315864 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second