== sanity test 124b: lru resize (performance test) ================================================================================= 05:13:21 (1788599601)
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 842 (time 1788599614.90 total 10.00 last 84.18)
 - open/close 1720 (time 1788599624.90 total 20.00 last 87.79)
 - open/close 2597 (time 1788599634.90 total 30.01 last 87.67)
 - open/close 3452 (time 1788599644.90 total 40.01 last 85.49)
 - open/close 4202 (time 1788599654.91 total 50.02 last 74.92)
 - open/close 4941 (time 1788599664.92 total 60.03 last 73.86)
 - open/close 5831 (time 1788599674.92 total 70.03 last 88.96)
 - open/close 6575 (time 1788599684.93 total 80.03 last 74.39)
 - open/close 7425 (time 1788599694.93 total 90.04 last 84.95)
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: 86 seconds
lru_size = 400
400
 - unlinked 0 (time 1788599799 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 954 (time 1788599913.13 total 10.01 last 95.31)
 - open/close 1660 (time 1788599923.14 total 20.02 last 70.55)
 - open/close 2487 (time 1788599933.14 total 30.02 last 82.65)
 - open/close 3411 (time 1788599943.15 total 40.03 last 92.35)
 - open/close 4280 (time 1788599953.15 total 50.03 last 86.89)
 - open/close 5113 (time 1788599963.15 total 60.03 last 83.28)
 - open/close 6057 (time 1788599973.17 total 70.05 last 94.24)
 - open/close 6949 (time 1788599983.18 total 80.06 last 89.14)
 - open/close 7806 (time 1788599993.19 total 90.07 last 85.60)
total: 8000 open/close in 93.17 seconds: 85.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4052
3955
ls -la is 11% faster with lru resize enabled
 - unlinked 0 (time 1788600092 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second