== sanity test 124b: lru resize (performance test) ================================================================================= 22:21:38 (1789438898)
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 999 (time 1789438913.70 total 10.01 last 99.78)
 - open/close 1955 (time 1789438923.70 total 20.01 last 95.60)
 - open/close 2899 (time 1789438933.71 total 30.01 last 94.38)
 - open/close 3721 (time 1789438943.72 total 40.03 last 82.09)
 - open/close 4609 (time 1789438953.73 total 50.03 last 88.73)
 - open/close 5574 (time 1789438963.74 total 60.04 last 96.41)
 - open/close 6515 (time 1789438973.74 total 70.05 last 94.07)
 - open/close 7374 (time 1789438983.75 total 80.06 last 85.78)
total: 8000 open/close in 87.72 seconds: 91.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 148 seconds
lru_size = 400
400
 - unlinked 0 (time 1789439151 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 543 (time 1789439257.25 total 10.01 last 54.24)
 - open/close 1077 (time 1789439267.26 total 20.02 last 53.34)
 - open/close 1693 (time 1789439277.27 total 30.03 last 61.57)
 - open/close 2283 (time 1789439287.27 total 40.03 last 58.96)
 - open/close 3230 (time 1789439297.28 total 50.04 last 94.63)
 - open/close 4086 (time 1789439307.29 total 60.05 last 85.50)
 - open/close 4993 (time 1789439317.30 total 70.06 last 90.62)
 - open/close 5798 (time 1789439327.31 total 80.07 last 80.47)
 - open/close 6613 (time 1789439337.31 total 90.07 last 81.46)
 - open/close 7604 (time 1789439347.32 total 100.08 last 99.01)
total: 8000 open/close in 104.74 seconds: 76.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1789439457 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second