== sanity test 124b: lru resize (performance test) ================================================================================= 18:37:47 (1790721467)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 896 (time 1790721483.53 total 10.00 last 89.58)
 - open/close 1497 (time 1790721493.54 total 20.01 last 60.06)
 - open/close 2425 (time 1790721503.55 total 30.02 last 92.71)
 - open/close 3463 (time 1790721513.56 total 40.03 last 103.74)
 - open/close 4321 (time 1790721523.56 total 50.03 last 85.75)
 - open/close 5213 (time 1790721533.57 total 60.03 last 89.18)
 - open/close 6142 (time 1790721543.57 total 70.04 last 92.87)
 - open/close 7148 (time 1790721553.57 total 80.04 last 100.55)
 - open/close 7960 (time 1790721563.58 total 90.05 last 81.16)
total: 8000 open/close in 90.55 seconds: 88.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 400
400
 - unlinked 0 (time 1790721662 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 919 (time 1790721766.01 total 10.00 last 91.86)
 - open/close 1788 (time 1790721776.02 total 20.01 last 86.85)
 - open/close 2579 (time 1790721786.02 total 30.01 last 79.10)
 - open/close 3542 (time 1790721796.02 total 40.02 last 96.24)
 - open/close 4364 (time 1790721806.03 total 50.02 last 82.16)
 - open/close 5088 (time 1790721816.03 total 60.03 last 72.36)
 - open/close 5814 (time 1790721826.05 total 70.05 last 72.46)
 - open/close 6594 (time 1790721836.05 total 80.05 last 77.99)
 - open/close 7506 (time 1790721846.06 total 90.06 last 91.13)
total: 8000 open/close in 95.00 seconds: 84.21 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4006
4001
ls -la is 11% faster with lru resize enabled
 - unlinked 0 (time 1790721947 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second