== sanity test 124b: lru resize (performance test) ================================================================================= 22:37:22 (1746153442)
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 1466 (time 1746153455.39 total 10.01 last 146.49)
 - open/close 2903 (time 1746153465.40 total 20.01 last 143.62)
 - open/close 4475 (time 1746153475.40 total 30.02 last 157.13)
 - open/close 5970 (time 1746153485.41 total 40.02 last 149.47)
 - open/close 7387 (time 1746153495.41 total 50.02 last 141.68)
total: 8000 open/close in 54.27 seconds: 147.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 400
400
 - unlinked 0 (time 1746153590 ; total 0 ; last 0)
total: 8000 unlinks in 31 seconds: 258.064514 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1434 (time 1746153634.85 total 10.00 last 143.37)
 - open/close 2758 (time 1746153644.85 total 20.00 last 132.40)
 - open/close 4242 (time 1746153654.86 total 30.00 last 148.37)
 - open/close 5811 (time 1746153664.86 total 40.01 last 156.81)
 - open/close 7223 (time 1746153674.86 total 50.01 last 141.18)
total: 8000 open/close in 55.50 seconds: 144.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 33 seconds
lru_size = 4052
3955
ls -la is 61% faster with lru resize enabled
 - unlinked 0 (time 1746153722 ; total 0 ; last 0)
total: 8000 unlinks in 32 seconds: 250.000000 unlinks/second