== sanity test 124b: lru resize (performance test) ================================================================================= 12:48:21 (1775839701)
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 930 (time 1775839714.04 total 10.00 last 92.97)
 - open/close 1795 (time 1775839724.05 total 20.01 last 86.43)
 - open/close 2701 (time 1775839734.06 total 30.02 last 90.49)
 - open/close 3835 (time 1775839744.06 total 40.03 last 113.35)
 - open/close 5327 (time 1775839754.07 total 50.03 last 149.17)
 - open/close 6710 (time 1775839764.07 total 60.03 last 138.24)
 - open/close 7932 (time 1775839774.07 total 70.04 last 122.17)
total: 8000 open/close in 70.53 seconds: 113.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 400
400
 - unlinked 0 (time 1775839867 ; total 0 ; last 0)
total: 8000 unlinks in 48 seconds: 166.666672 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1584 (time 1775839927.73 total 10.00 last 158.35)
 - open/close 3523 (time 1775839937.74 total 20.01 last 193.76)
 - open/close 5342 (time 1775839947.74 total 30.01 last 181.86)
 - open/close 7244 (time 1775839957.74 total 40.01 last 190.18)
total: 8000 open/close in 43.92 seconds: 182.14 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 49 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1775840019 ; total 0 ; last 0)
total: 8000 unlinks in 20 seconds: 400.000000 unlinks/second