== sanity test 124b: lru resize (performance test) ================================================================================= 16:54:09 (1788296049)
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 745 (time 1788296065.08 total 10.01 last 74.42)
 - open/close 1510 (time 1788296075.09 total 20.02 last 76.42)
 - open/close 2231 (time 1788296085.10 total 30.02 last 72.09)
 - open/close 2946 (time 1788296095.10 total 40.03 last 71.45)
 - open/close 3666 (time 1788296105.12 total 50.05 last 71.89)
 - open/close 4349 (time 1788296115.12 total 60.05 last 68.28)
 - open/close 4980 (time 1788296125.13 total 70.06 last 63.02)
 - open/close 5597 (time 1788296135.14 total 80.06 last 61.68)
 - open/close 6200 (time 1788296145.14 total 90.07 last 60.26)
 - open/close 6890 (time 1788296155.15 total 100.07 last 68.98)
 - open/close 7623 (time 1788296165.16 total 110.09 last 73.21)
total: 8000 open/close in 116.30 seconds: 68.79 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 1788296282 ; total 0 ; last 0)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 535 (time 1788296407.79 total 10.02 last 53.37)
 - open/close 1110 (time 1788296417.79 total 20.03 last 57.48)
 - open/close 1734 (time 1788296427.80 total 30.03 last 62.37)
 - open/close 2364 (time 1788296437.82 total 40.06 last 62.85)
 - open/close 3016 (time 1788296447.83 total 50.07 last 65.14)
 - open/close 3744 (time 1788296457.84 total 60.07 last 72.75)
 - open/close 4416 (time 1788296467.84 total 70.08 last 67.18)
 - open/close 5101 (time 1788296477.86 total 80.09 last 68.38)
 - open/close 5800 (time 1788296487.87 total 90.11 last 69.81)
 - open/close 6509 (time 1788296497.87 total 100.11 last 70.90)
 - open/close 7251 (time 1788296507.88 total 110.12 last 74.10)
 - open/close 7918 (time 1788296517.90 total 120.13 last 66.61)
total: 8000 open/close in 121.03 seconds: 66.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 4052
3955
ls -la is 5% faster with lru resize enabled
 - unlinked 0 (time 1788296636 ; total 0 ; last 0)
total: 8000 unlinks in 75 seconds: 106.666664 unlinks/second