== sanity test 124b: lru resize (performance test) ================================================================================= 13:57:36 (1788544656)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 847 (time 1788544671.71 total 10.00 last 84.68)
 - open/close 1664 (time 1788544681.72 total 20.01 last 81.61)
 - open/close 2470 (time 1788544691.73 total 30.02 last 80.57)
 - open/close 3227 (time 1788544701.73 total 40.02 last 75.65)
 - open/close 4158 (time 1788544711.75 total 50.04 last 92.96)
 - open/close 5118 (time 1788544721.76 total 60.05 last 95.89)
 - open/close 6010 (time 1788544731.77 total 70.06 last 89.11)
 - open/close 6917 (time 1788544741.78 total 80.07 last 90.63)
 - open/close 7810 (time 1788544751.79 total 90.08 last 89.21)
total: 8000 open/close in 92.17 seconds: 86.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 136 seconds
lru_size = 400
400
 - unlinked 0 (time 1788544898 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 906 (time 1788544999.16 total 10.00 last 90.56)
 - open/close 1767 (time 1788545009.16 total 20.01 last 86.09)
 - open/close 2678 (time 1788545019.17 total 30.01 last 91.06)
 - open/close 3560 (time 1788545029.17 total 40.02 last 88.14)
 - open/close 4489 (time 1788545039.18 total 50.02 last 92.84)
 - open/close 5405 (time 1788545049.18 total 60.03 last 91.56)
 - open/close 6280 (time 1788545059.19 total 70.03 last 87.48)
 - open/close 7033 (time 1788545069.19 total 80.04 last 75.25)
 - open/close 7905 (time 1788545079.20 total 90.04 last 87.14)
total: 8000 open/close in 91.22 seconds: 87.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1788545184 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second