== sanity test 124b: lru resize (performance test) ================================================================================= 19:49:18 (1787874558)
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 793 (time 1787874572.69 total 10.01 last 79.25)
 - open/close 1567 (time 1787874582.69 total 20.01 last 77.38)
 - open/close 2254 (time 1787874592.70 total 30.02 last 68.62)
 - open/close 3044 (time 1787874602.71 total 40.03 last 78.92)
 - open/close 3849 (time 1787874612.72 total 50.03 last 80.47)
 - open/close 4649 (time 1787874622.73 total 60.05 last 79.91)
 - open/close 5461 (time 1787874632.73 total 70.05 last 81.19)
 - open/close 6146 (time 1787874642.74 total 80.06 last 68.40)
 - open/close 6906 (time 1787874652.75 total 90.07 last 75.94)
 - open/close 7673 (time 1787874662.76 total 100.08 last 76.62)
total: 8000 open/close in 103.97 seconds: 76.95 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1787874828 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 750 (time 1787874938.66 total 10.01 last 74.93)
 - open/close 1503 (time 1787874948.67 total 20.02 last 75.24)
 - open/close 2308 (time 1787874958.67 total 30.02 last 80.47)
 - open/close 3084 (time 1787874968.69 total 40.03 last 77.49)
 - open/close 3929 (time 1787874978.69 total 50.04 last 84.47)
 - open/close 4761 (time 1787874988.71 total 60.06 last 83.03)
 - open/close 5503 (time 1787874998.71 total 70.06 last 74.19)
 - open/close 6311 (time 1787875008.72 total 80.07 last 80.75)
 - open/close 7221 (time 1787875018.73 total 90.08 last 90.88)
total: 8000 open/close in 99.19 seconds: 80.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 71 seconds
lru_size = 4052
3955
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1787875118 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second