== sanity test 124b: lru resize (performance test) ================================================================================= 18:05:33 (1782252333)
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 635 (time 1782252349.26 total 10.02 last 63.36)
 - open/close 1145 (time 1782252359.28 total 20.04 last 50.91)
 - open/close 1866 (time 1782252369.30 total 30.06 last 71.98)
 - open/close 2711 (time 1782252379.32 total 40.08 last 84.32)
 - open/close 3281 (time 1782252389.33 total 50.09 last 56.95)
 - open/close 4038 (time 1782252399.34 total 60.10 last 75.60)
 - open/close 4905 (time 1782252409.35 total 70.11 last 86.64)
 - open/close 5899 (time 1782252419.35 total 80.11 last 99.39)
 - open/close 6870 (time 1782252429.36 total 90.12 last 97.05)
 - open/close 7770 (time 1782252439.36 total 100.12 last 89.98)
total: 8000 open/close in 102.56 seconds: 78.00 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 101 seconds
lru_size = 400
400
 - unlinked 0 (time 1782252553 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 802 (time 1782252659.33 total 10.00 last 80.19)
 - open/close 1582 (time 1782252669.33 total 20.01 last 77.96)
 - open/close 2538 (time 1782252679.34 total 30.01 last 95.53)
 - open/close 3441 (time 1782252689.35 total 40.03 last 90.19)
 - open/close 4374 (time 1782252699.36 total 50.03 last 93.25)
 - open/close 5345 (time 1782252709.36 total 60.04 last 97.06)
 - open/close 6268 (time 1782252719.39 total 70.06 last 92.09)
 - open/close 7077 (time 1782252729.41 total 80.09 last 80.68)
 - open/close 7954 (time 1782252739.42 total 90.09 last 87.67)
total: 8000 open/close in 90.52 seconds: 88.38 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4052
3955
ls -la is 21% faster with lru resize enabled
 - unlinked 0 (time 1782252838 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second