== sanity test 124b: lru resize (performance test) ================================================================================= 13:25:59 (1787851559)
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 929 (time 1787851574.32 total 10.01 last 92.85)
 - open/close 1693 (time 1787851584.32 total 20.01 last 76.38)
 - open/close 2632 (time 1787851594.33 total 30.01 last 93.83)
 - open/close 3436 (time 1787851604.33 total 40.02 last 80.34)
 - open/close 4207 (time 1787851614.35 total 50.03 last 77.02)
 - open/close 4800 (time 1787851624.35 total 60.04 last 59.28)
 - open/close 5409 (time 1787851634.35 total 70.04 last 60.89)
 - open/close 6154 (time 1787851644.36 total 80.05 last 74.42)
 - open/close 7078 (time 1787851654.36 total 90.05 last 92.37)
total: 8000 open/close in 99.87 seconds: 80.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 188 seconds
lru_size = 400
400
 - unlinked 0 (time 1787851864 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 855 (time 1787851976.02 total 10.01 last 85.44)
 - open/close 1635 (time 1787851986.05 total 20.04 last 77.78)
 - open/close 2249 (time 1787851996.06 total 30.04 last 61.36)
 - open/close 2832 (time 1787852006.07 total 40.05 last 58.23)
 - open/close 3616 (time 1787852016.08 total 50.06 last 78.36)
 - open/close 4513 (time 1787852026.08 total 60.06 last 89.66)
 - open/close 5536 (time 1787852036.08 total 70.06 last 102.29)
 - open/close 6433 (time 1787852046.09 total 80.08 last 89.59)
 - open/close 7382 (time 1787852056.09 total 90.08 last 94.89)
total: 8000 open/close in 97.14 seconds: 82.36 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1787852164 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second