== sanity test 124b: lru resize (performance test) ================================================================================= 00:02:24 (1789617744)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 669 (time 1789617759.92 total 10.01 last 66.85)
 - open/close 1347 (time 1789617769.92 total 20.01 last 67.80)
 - open/close 2107 (time 1789617779.93 total 30.01 last 75.99)
 - open/close 2943 (time 1789617789.93 total 40.01 last 83.59)
 - open/close 3690 (time 1789617799.94 total 50.02 last 74.60)
 - open/close 4320 (time 1789617809.95 total 60.03 last 62.94)
 - open/close 4863 (time 1789617819.98 total 70.07 last 54.12)
 - open/close 5403 (time 1789617829.99 total 80.07 last 53.96)
 - open/close 5879 (time 1789617840.01 total 90.09 last 47.50)
 - open/close 6490 (time 1789617850.02 total 100.11 last 61.04)
 - open/close 7094 (time 1789617860.03 total 110.11 last 60.36)
 - open/close 7627 (time 1789617870.04 total 120.12 last 53.25)
total: 8000 open/close in 126.89 seconds: 63.05 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 400
400
 - unlinked 0 (time 1789617988 ; total 0 ; last 0)
total: 8000 unlinks in 102 seconds: 78.431374 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 816 (time 1789618104.90 total 10.01 last 81.56)
 - open/close 1620 (time 1789618114.91 total 20.01 last 80.33)
 - open/close 2508 (time 1789618124.92 total 30.02 last 88.72)
 - open/close 3235 (time 1789618134.93 total 40.03 last 72.66)
 - open/close 3868 (time 1789618144.94 total 50.04 last 63.19)
 - open/close 4542 (time 1789618154.95 total 60.05 last 67.37)
 - open/close 5322 (time 1789618164.96 total 70.06 last 77.90)
 - open/close 5942 (time 1789618174.96 total 80.07 last 61.98)
 - open/close 6839 (time 1789618184.97 total 90.07 last 89.67)
 - open/close 7641 (time 1789618194.99 total 100.09 last 80.00)
total: 8000 open/close in 105.14 seconds: 76.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 71 seconds
lru_size = 4006
4001
ls -la is 28% faster with lru resize enabled
 - unlinked 0 (time 1789618288 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second