== sanity test 124b: lru resize (performance test) ================================================================================= 11:13:04 (1787152384)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 829 (time 1787152399.28 total 10.01 last 82.82)
 - open/close 1496 (time 1787152409.32 total 20.05 last 66.44)
 - open/close 2311 (time 1787152419.32 total 30.05 last 81.47)
 - open/close 3184 (time 1787152429.34 total 40.08 last 87.10)
 - open/close 4074 (time 1787152439.36 total 50.10 last 88.82)
 - open/close 4926 (time 1787152449.37 total 60.10 last 85.17)
 - open/close 5807 (time 1787152459.38 total 70.11 last 88.02)
 - open/close 6589 (time 1787152469.39 total 80.12 last 78.13)
 - open/close 7499 (time 1787152479.39 total 90.12 last 90.93)
total: 8000 open/close in 95.80 seconds: 83.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 160 seconds
lru_size = 400
400
 - unlinked 0 (time 1787152655 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 881 (time 1787152764.99 total 10.00 last 88.10)
 - open/close 1670 (time 1787152774.99 total 20.00 last 78.88)
 - open/close 2495 (time 1787152785.00 total 30.01 last 82.43)
 - open/close 3255 (time 1787152795.00 total 40.01 last 76.00)
 - open/close 4158 (time 1787152805.00 total 50.02 last 90.27)
 - open/close 5043 (time 1787152815.00 total 60.02 last 88.50)
 - open/close 5979 (time 1787152825.01 total 70.02 last 93.57)
 - open/close 6903 (time 1787152835.01 total 80.02 last 92.37)
 - open/close 7622 (time 1787152845.03 total 90.04 last 71.78)
total: 8000 open/close in 95.63 seconds: 83.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1787152971 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second