== sanity test 124b: lru resize (performance test) ================================================================================= 07:40:19 (1787917219)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 772 (time 1787917234.71 total 10.04 last 76.87)
 - open/close 1654 (time 1787917244.71 total 20.05 last 88.18)
 - open/close 2446 (time 1787917254.72 total 30.05 last 79.14)
 - open/close 3243 (time 1787917264.72 total 40.05 last 79.68)
 - open/close 3965 (time 1787917274.73 total 50.06 last 72.14)
 - open/close 4805 (time 1787917284.73 total 60.07 last 83.96)
 - open/close 5659 (time 1787917294.74 total 70.08 last 85.33)
 - open/close 6517 (time 1787917304.74 total 80.08 last 85.79)
 - open/close 7382 (time 1787917314.75 total 90.08 last 86.47)
total: 8000 open/close in 98.07 seconds: 81.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 164 seconds
lru_size = 400
 - unlinked 0 (time 1787917497 ; total 0 ; last 0)
total: 8000 unlinks in 107 seconds: 74.766357 unlinks/second
 - open/close 871 (time 1787917619.60 total 10.01 last 86.99)
 - open/close 1798 (time 1787917629.62 total 20.03 last 92.54)
 - open/close 2601 (time 1787917639.62 total 30.03 last 80.29)
 - open/close 3358 (time 1787917649.63 total 40.05 last 75.57)
 - open/close 4245 (time 1787917659.65 total 50.06 last 88.60)
 - open/close 5176 (time 1787917669.65 total 60.06 last 93.08)
 - open/close 6064 (time 1787917679.65 total 70.07 last 88.77)
 - open/close 6923 (time 1787917689.66 total 80.07 last 85.88)
 - open/close 7756 (time 1787917699.66 total 90.07 last 83.30)
total: 8000 open/close in 92.68 seconds: 86.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 8005
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787917814 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second