== sanity test 124b: lru resize (performance test) ================================================================================= 00:34:56 (1746074096)
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 1246 (time 1746074110.28 total 10.00 last 124.59)
 - open/close 2371 (time 1746074120.29 total 20.01 last 112.44)
 - open/close 3473 (time 1746074130.29 total 30.01 last 110.19)
 - open/close 4546 (time 1746074140.29 total 40.01 last 107.24)
 - open/close 5609 (time 1746074150.30 total 50.02 last 106.25)
 - open/close 6789 (time 1746074160.30 total 60.02 last 117.99)
 - open/close 7915 (time 1746074170.31 total 70.02 last 112.53)
total: 8000 open/close in 70.75 seconds: 113.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 400
400
 - unlinked 0 (time 1746074284 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1101 (time 1746074355.30 total 10.00 last 110.09)
 - open/close 2110 (time 1746074365.31 total 20.01 last 100.85)
 - open/close 3200 (time 1746074375.31 total 30.01 last 108.99)
 - open/close 4229 (time 1746074385.31 total 40.01 last 102.85)
 - open/close 5256 (time 1746074395.32 total 50.02 last 102.63)
 - open/close 6274 (time 1746074405.32 total 60.02 last 101.79)
 - open/close 7321 (time 1746074415.32 total 70.02 last 104.69)
total: 8000 open/close in 76.55 seconds: 104.51 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 48 seconds
lru_size = 4052
3955
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1746074480 ; total 0 ; last 0)
total: 8000 unlinks in 44 seconds: 181.818176 unlinks/second