== sanity test 124b: lru resize (performance test) ================================================================================= 16:56:28 (1780347388)
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 1060 (time 1780347402.57 total 10.00 last 105.98)
 - open/close 2071 (time 1780347412.57 total 20.00 last 101.09)
 - open/close 3119 (time 1780347422.57 total 30.00 last 104.80)
 - open/close 4141 (time 1780347432.58 total 40.01 last 102.14)
 - open/close 5151 (time 1780347442.59 total 50.02 last 100.91)
 - open/close 6091 (time 1780347452.59 total 60.02 last 94.00)
 - open/close 7116 (time 1780347462.59 total 70.02 last 102.44)
total: 8000 open/close in 78.31 seconds: 102.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 125 seconds
lru_size = 400
400
 - unlinked 0 (time 1780347604 ; total 0 ; last 0)
total: 8000 unlinks in 72 seconds: 111.111115 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1179 (time 1780347689.26 total 10.00 last 117.86)
 - open/close 2126 (time 1780347699.28 total 20.01 last 94.60)
 - open/close 3061 (time 1780347709.28 total 30.02 last 93.45)
 - open/close 4185 (time 1780347719.29 total 40.03 last 112.33)
 - open/close 5305 (time 1780347729.30 total 50.04 last 111.87)
 - open/close 6366 (time 1780347739.30 total 60.04 last 106.06)
 - open/close 7454 (time 1780347749.31 total 70.05 last 108.72)
total: 8000 open/close in 75.09 seconds: 106.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 61 seconds
lru_size = 4052
3955
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1780347829 ; total 0 ; last 0)
total: 8000 unlinks in 43 seconds: 186.046509 unlinks/second