== sanity test 124b: lru resize (performance test) ================================================================================= 18:24:36 (1788474276)
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 649 (time 1788474291.61 total 10.03 last 64.73)
 - open/close 1270 (time 1788474301.62 total 20.03 last 62.05)
 - open/close 1976 (time 1788474311.62 total 30.04 last 70.59)
 - open/close 2641 (time 1788474321.63 total 40.04 last 66.46)
 - open/close 3321 (time 1788474331.63 total 50.04 last 67.99)
 - open/close 3956 (time 1788474341.64 total 60.05 last 63.43)
 - open/close 4549 (time 1788474351.64 total 70.06 last 59.27)
 - open/close 5198 (time 1788474361.64 total 80.06 last 64.89)
 - open/close 5914 (time 1788474371.65 total 90.06 last 71.57)
 - open/close 6569 (time 1788474381.65 total 100.07 last 65.46)
 - open/close 7214 (time 1788474391.66 total 110.07 last 64.49)
 - open/close 7821 (time 1788474401.67 total 120.08 last 60.64)
total: 8000 open/close in 122.47 seconds: 65.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 172 seconds
lru_size = 400
400
 - unlinked 0 (time 1788474586 ; total 0 ; last 0)
total: 8000 unlinks in 116 seconds: 68.965515 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 662 (time 1788474718.15 total 10.00 last 66.19)
 - open/close 1362 (time 1788474728.15 total 20.00 last 69.99)
 - open/close 2138 (time 1788474738.16 total 30.01 last 77.57)
 - open/close 2912 (time 1788474748.17 total 40.02 last 77.32)
 - open/close 3662 (time 1788474758.17 total 50.02 last 74.95)
 - open/close 4459 (time 1788474768.19 total 60.04 last 79.57)
 - open/close 5231 (time 1788474778.19 total 70.04 last 77.16)
 - open/close 5968 (time 1788474788.21 total 80.06 last 73.60)
 - open/close 6660 (time 1788474798.21 total 90.06 last 69.16)
 - open/close 7400 (time 1788474808.22 total 100.07 last 73.97)
total: 8000 open/close in 107.98 seconds: 74.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4006
4001
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1788474923 ; total 0 ; last 0)
total: 8000 unlinks in 72 seconds: 111.111115 unlinks/second