== sanity test 124b: lru resize (performance test) ================================================================================= 05:31:47 (1787477507)
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 933 (time 1787477521.20 total 10.00 last 93.26)
 - open/close 1820 (time 1787477531.21 total 20.01 last 88.61)
 - open/close 2438 (time 1787477541.21 total 30.02 last 61.78)
 - open/close 3086 (time 1787477551.22 total 40.03 last 64.75)
 - open/close 3679 (time 1787477561.23 total 50.04 last 59.23)
 - open/close 4111 (time 1787477571.25 total 60.06 last 43.13)
 - open/close 4838 (time 1787477581.25 total 70.06 last 72.68)
 - open/close 5673 (time 1787477591.26 total 80.06 last 83.47)
 - open/close 6555 (time 1787477601.26 total 90.06 last 88.20)
 - open/close 7463 (time 1787477611.26 total 100.07 last 90.74)
total: 8000 open/close in 106.63 seconds: 75.03 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 1787477728 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1022 (time 1787477839.94 total 10.01 last 102.12)
 - open/close 2005 (time 1787477849.94 total 20.01 last 98.29)
 - open/close 2819 (time 1787477859.94 total 30.01 last 81.37)
 - open/close 3523 (time 1787477869.95 total 40.02 last 70.32)
 - open/close 4196 (time 1787477879.96 total 50.03 last 67.24)
 - open/close 5089 (time 1787477889.97 total 60.04 last 89.26)
 - open/close 5873 (time 1787477899.98 total 70.05 last 78.32)
 - open/close 6674 (time 1787477909.99 total 80.06 last 79.97)
 - open/close 7380 (time 1787477919.99 total 90.07 last 70.59)
 - open/close 7977 (time 1787477930.00 total 100.07 last 59.68)
total: 8000 open/close in 100.34 seconds: 79.73 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 3% faster with lru resize enabled
 - unlinked 0 (time 1787478055 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second