== sanity test 124b: lru resize (performance test) ================================================================================= 10:55:34 (1789138534)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 669 (time 1789138550.04 total 10.00 last 66.87)
 - open/close 1339 (time 1789138560.05 total 20.02 last 66.88)
 - open/close 2079 (time 1789138570.07 total 30.03 last 73.91)
 - open/close 2827 (time 1789138580.07 total 40.04 last 74.76)
 - open/close 3527 (time 1789138590.08 total 50.04 last 69.97)
 - open/close 4132 (time 1789138600.10 total 60.06 last 60.39)
 - open/close 4787 (time 1789138610.11 total 70.08 last 65.42)
 - open/close 5462 (time 1789138620.13 total 80.10 last 67.36)
 - open/close 6179 (time 1789138630.14 total 90.11 last 71.61)
 - open/close 6910 (time 1789138640.16 total 100.13 last 72.95)
 - open/close 7622 (time 1789138650.18 total 110.15 last 71.05)
total: 8000 open/close in 114.79 seconds: 69.69 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 180 seconds
lru_size = 400
400
 - unlinked 0 (time 1789138845 ; total 0 ; last 0)
total: 8000 unlinks in 118 seconds: 67.796608 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 735 (time 1789138978.63 total 10.01 last 73.45)
 - open/close 1450 (time 1789138988.64 total 20.01 last 71.48)
 - open/close 2200 (time 1789138998.65 total 30.02 last 74.94)
 - open/close 2853 (time 1789139008.65 total 40.02 last 65.27)
 - open/close 3617 (time 1789139018.66 total 50.03 last 76.33)
 - open/close 4257 (time 1789139028.67 total 60.04 last 63.94)
 - open/close 4998 (time 1789139038.68 total 70.05 last 74.00)
 - open/close 5685 (time 1789139048.69 total 80.06 last 68.65)
 - open/close 6404 (time 1789139058.70 total 90.07 last 71.83)
 - open/close 7139 (time 1789139068.71 total 100.08 last 73.41)
 - open/close 7856 (time 1789139078.72 total 110.09 last 71.62)
total: 8000 open/close in 111.98 seconds: 71.44 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1789139192 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second