== sanity test 124b: lru resize (performance test) ================================================================================= 22:07:09 (1746151629)
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 1482 (time 1746151641.99 total 10.00 last 148.14)
 - open/close 3257 (time 1746151651.99 total 20.00 last 177.50)
 - open/close 5279 (time 1746151662.00 total 30.01 last 202.16)
 - open/close 7290 (time 1746151672.00 total 40.01 last 201.06)
total: 8000 open/close in 44.01 seconds: 181.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 67 seconds
lru_size = 400
400
 - unlinked 0 (time 1746151745 ; total 0 ; last 0)
total: 8000 unlinks in 32 seconds: 250.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1415 (time 1746151789.23 total 10.01 last 141.42)
 - open/close 2917 (time 1746151799.24 total 20.01 last 150.18)
 - open/close 4260 (time 1746151809.24 total 30.01 last 134.28)
 - open/close 5693 (time 1746151819.24 total 40.01 last 143.22)
 - open/close 7239 (time 1746151829.25 total 50.02 last 154.56)
total: 8000 open/close in 55.54 seconds: 144.03 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 19 seconds
lru_size = 4052
3955
ls -la is 71% faster with lru resize enabled
 - unlinked 0 (time 1746151860 ; total 0 ; last 0)
total: 8000 unlinks in 24 seconds: 333.333344 unlinks/second