== sanity test 124b: lru resize (performance test) ================================================================================= 16:08:36 (1789589316)
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 659 (time 1789589330.66 total 10.00 last 65.87)
 - open/close 1330 (time 1789589340.67 total 20.02 last 67.01)
 - open/close 2110 (time 1789589350.68 total 30.03 last 77.95)
 - open/close 3031 (time 1789589360.68 total 40.03 last 92.06)
 - open/close 3922 (time 1789589370.68 total 50.03 last 89.10)
 - open/close 4752 (time 1789589380.69 total 60.04 last 82.90)
 - open/close 5478 (time 1789589390.70 total 70.05 last 72.52)
 - open/close 6108 (time 1789589400.71 total 80.06 last 62.97)
 - open/close 6990 (time 1789589410.72 total 90.06 last 88.14)
 - open/close 7977 (time 1789589420.72 total 100.06 last 98.70)
total: 8000 open/close in 100.27 seconds: 79.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 400
400
 - unlinked 0 (time 1789589508 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 791 (time 1789589630.82 total 10.01 last 78.99)
 - open/close 1452 (time 1789589640.83 total 20.03 last 66.02)
 - open/close 2490 (time 1789589650.83 total 30.03 last 103.76)
 - open/close 3390 (time 1789589660.84 total 40.04 last 89.94)
 - open/close 4308 (time 1789589670.84 total 50.04 last 91.77)
 - open/close 5349 (time 1789589680.85 total 60.05 last 104.00)
 - open/close 6374 (time 1789589690.85 total 70.05 last 102.49)
 - open/close 7233 (time 1789589700.85 total 80.05 last 85.87)
total: 8000 open/close in 88.37 seconds: 90.53 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 5% slower with lru resize enabled
 - unlinked 0 (time 1789589811 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second