== sanity test 124b: lru resize (performance test) ================================================================================= 15:00:18 (1788807618)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 793 (time 1788807633.95 total 10.00 last 79.27)
 - open/close 1562 (time 1788807643.96 total 20.01 last 76.87)
 - open/close 2488 (time 1788807653.97 total 30.02 last 92.47)
 - open/close 3360 (time 1788807663.98 total 40.03 last 87.12)
 - open/close 4203 (time 1788807673.99 total 50.03 last 84.26)
 - open/close 5013 (time 1788807683.99 total 60.04 last 80.96)
 - open/close 5857 (time 1788807694.01 total 70.06 last 84.26)
 - open/close 6525 (time 1788807704.02 total 80.07 last 66.69)
 - open/close 7276 (time 1788807714.02 total 90.07 last 75.09)
total: 8000 open/close in 99.39 seconds: 80.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 151 seconds
lru_size = 400
400
 - unlinked 0 (time 1788807885 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 858 (time 1788807999.11 total 10.01 last 85.73)
 - open/close 1762 (time 1788808009.12 total 20.01 last 90.36)
 - open/close 2592 (time 1788808019.12 total 30.01 last 83.00)
 - open/close 3388 (time 1788808029.13 total 40.02 last 79.54)
 - open/close 4269 (time 1788808039.13 total 50.02 last 88.07)
 - open/close 5087 (time 1788808049.14 total 60.04 last 81.68)
 - open/close 5898 (time 1788808059.14 total 70.04 last 81.10)
 - open/close 6846 (time 1788808069.15 total 80.05 last 94.71)
 - open/close 7697 (time 1788808079.16 total 90.05 last 85.06)
total: 8000 open/close in 93.98 seconds: 85.12 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 4006
4001
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1788808171 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second