== sanity test 124b: lru resize (performance test) ================================================================================= 16:44:30 (1746132270)
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 1390 (time 1746132282.59 total 10.00 last 138.95)
 - open/close 2786 (time 1746132292.59 total 20.00 last 139.58)
 - open/close 4091 (time 1746132302.60 total 30.01 last 130.44)
 - open/close 5299 (time 1746132312.60 total 40.01 last 120.78)
 - open/close 6716 (time 1746132322.61 total 50.02 last 141.60)
 - open/close 7955 (time 1746132332.61 total 60.02 last 123.86)
total: 8000 open/close in 60.39 seconds: 132.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 400
400
 - unlinked 0 (time 1746132426 ; total 0 ; last 0)
total: 8000 unlinks in 46 seconds: 173.913040 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1733 (time 1746132484.79 total 10.00 last 173.26)
 - open/close 3280 (time 1746132494.80 total 20.01 last 154.62)
 - open/close 4658 (time 1746132504.80 total 30.01 last 137.75)
 - open/close 5955 (time 1746132514.81 total 40.02 last 129.62)
 - open/close 7384 (time 1746132524.81 total 50.02 last 142.90)
total: 8000 open/close in 53.97 seconds: 148.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 37 seconds
lru_size = 4006
4001
ls -la is 58% faster with lru resize enabled
 - unlinked 0 (time 1746132576 ; total 0 ; last 0)
total: 8000 unlinks in 39 seconds: 205.128204 unlinks/second