== sanity test 124b: lru resize (performance test) ================================================================================= 19:38:34 (1746142714)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1398 (time 1746142727.06 total 10.00 last 139.77)
 - open/close 2664 (time 1746142737.06 total 20.00 last 126.58)
 - open/close 3881 (time 1746142747.07 total 30.01 last 121.58)
 - open/close 5153 (time 1746142757.08 total 40.02 last 127.10)
 - open/close 6419 (time 1746142767.09 total 50.03 last 126.52)
 - open/close 7748 (time 1746142777.09 total 60.03 last 132.86)
total: 8000 open/close in 61.97 seconds: 129.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 400
400
 - unlinked 0 (time 1746142881 ; total 0 ; last 0)
total: 8000 unlinks in 33 seconds: 242.424240 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1236 (time 1746142926.29 total 10.00 last 123.60)
 - open/close 2544 (time 1746142936.29 total 20.00 last 130.79)
 - open/close 3852 (time 1746142946.30 total 30.00 last 130.76)
 - open/close 5172 (time 1746142956.31 total 40.01 last 131.87)
 - open/close 6630 (time 1746142966.31 total 50.02 last 145.76)
total: 8000 open/close in 58.68 seconds: 136.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 26 seconds
lru_size = 4006
4001
ls -la is 73% faster with lru resize enabled
 - unlinked 0 (time 1746143008 ; total 0 ; last 0)
total: 8000 unlinks in 31 seconds: 258.064514 unlinks/second