== sanity test 124b: lru resize (performance test) ================================================================================= 06:57:46 (1781002666)
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 808 (time 1781002680.91 total 10.00 last 80.78)
 - open/close 1572 (time 1781002690.92 total 20.00 last 76.39)
 - open/close 2278 (time 1781002700.92 total 30.01 last 70.55)
 - open/close 2996 (time 1781002710.93 total 40.02 last 71.75)
 - open/close 3663 (time 1781002720.93 total 50.02 last 66.68)
 - open/close 4376 (time 1781002730.94 total 60.03 last 71.21)
 - open/close 5058 (time 1781002740.96 total 70.05 last 68.11)
 - open/close 5781 (time 1781002750.97 total 80.06 last 72.20)
 - open/close 6533 (time 1781002760.98 total 90.06 last 75.16)
 - open/close 7412 (time 1781002770.99 total 100.07 last 87.82)
total: 8000 open/close in 107.03 seconds: 74.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 158 seconds
lru_size = 400
400
 - unlinked 0 (time 1781002947 ; 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 764 (time 1781003061.29 total 10.01 last 76.34)
 - open/close 1544 (time 1781003071.29 total 20.01 last 77.97)
 - open/close 2135 (time 1781003081.30 total 30.02 last 59.06)
 - open/close 2876 (time 1781003091.31 total 40.03 last 74.04)
 - open/close 3654 (time 1781003101.32 total 50.04 last 77.71)
 - open/close 4360 (time 1781003111.34 total 60.05 last 70.49)
 - open/close 5100 (time 1781003121.35 total 70.06 last 73.94)
 - open/close 5829 (time 1781003131.35 total 80.07 last 72.86)
 - open/close 6706 (time 1781003141.37 total 90.09 last 87.52)
 - open/close 7619 (time 1781003151.38 total 100.09 last 91.26)
total: 8000 open/close in 104.82 seconds: 76.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1781003266 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second