== sanity test 124b: lru resize (performance test) ================================================================================= 21:12:50 (1788570770)
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 918 (time 1788570785.15 total 10.00 last 91.78)
 - open/close 1775 (time 1788570795.15 total 20.01 last 85.66)
 - open/close 2701 (time 1788570805.16 total 30.01 last 92.57)
 - open/close 3684 (time 1788570815.16 total 40.01 last 98.26)
 - open/close 4638 (time 1788570825.17 total 50.02 last 95.35)
 - open/close 5536 (time 1788570835.17 total 60.03 last 89.73)
 - open/close 6503 (time 1788570845.19 total 70.04 last 96.57)
 - open/close 7352 (time 1788570855.21 total 80.06 last 84.76)
total: 8000 open/close in 86.63 seconds: 92.34 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 1788571026 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 820 (time 1788571143.02 total 10.00 last 82.00)
 - open/close 1671 (time 1788571153.03 total 20.01 last 85.05)
 - open/close 2545 (time 1788571163.03 total 30.01 last 87.40)
 - open/close 3542 (time 1788571173.03 total 40.01 last 99.67)
 - open/close 4572 (time 1788571183.04 total 50.02 last 102.89)
 - open/close 5494 (time 1788571193.04 total 60.02 last 92.18)
 - open/close 6544 (time 1788571203.05 total 70.03 last 104.94)
 - open/close 7464 (time 1788571213.05 total 80.03 last 91.97)
total: 8000 open/close in 85.85 seconds: 93.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1788571338 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second