== sanity test 124b: lru resize (performance test) ================================================================================= 22:05:37 (1781229937)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 738 (time 1781229952.80 total 10.00 last 73.79)
 - open/close 1430 (time 1781229962.80 total 20.01 last 69.15)
 - open/close 2147 (time 1781229972.82 total 30.03 last 71.57)
 - open/close 2908 (time 1781229982.82 total 40.03 last 76.08)
 - open/close 3598 (time 1781229992.83 total 50.03 last 68.97)
 - open/close 4323 (time 1781230002.83 total 60.04 last 72.46)
 - open/close 5004 (time 1781230012.84 total 70.04 last 68.07)
 - open/close 5647 (time 1781230022.85 total 80.05 last 64.24)
 - open/close 6329 (time 1781230032.85 total 90.05 last 68.19)
 - open/close 7010 (time 1781230042.85 total 100.06 last 68.06)
 - open/close 7683 (time 1781230052.86 total 110.06 last 67.28)
total: 8000 open/close in 114.64 seconds: 69.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 176 seconds
lru_size = 400
400
 - unlinked 0 (time 1781230244 ; total 0 ; last 0)
total: 8000 unlinks in 114 seconds: 70.175438 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 696 (time 1781230373.52 total 10.01 last 69.54)
 - open/close 1388 (time 1781230383.52 total 20.01 last 69.18)
 - open/close 2120 (time 1781230393.53 total 30.02 last 73.16)
 - open/close 2753 (time 1781230403.54 total 40.03 last 63.23)
 - open/close 3392 (time 1781230413.56 total 50.05 last 63.79)
 - open/close 4063 (time 1781230423.57 total 60.06 last 67.03)
 - open/close 4753 (time 1781230433.58 total 70.07 last 68.90)
 - open/close 5447 (time 1781230443.59 total 80.08 last 69.36)
 - open/close 6129 (time 1781230453.59 total 90.08 last 68.17)
 - open/close 6811 (time 1781230463.60 total 100.09 last 68.15)
 - open/close 7461 (time 1781230473.62 total 110.11 last 64.89)
total: 8000 open/close in 119.30 seconds: 67.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4052
3955
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1781230606 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second