== sanity test 124b: lru resize (performance test) ================================================================================= 22:42:26 (1788662546)
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 1008 (time 1788662560.85 total 10.01 last 100.71)
 - open/close 1848 (time 1788662570.86 total 20.02 last 83.95)
 - open/close 2726 (time 1788662580.86 total 30.02 last 87.79)
 - open/close 3508 (time 1788662590.87 total 40.02 last 78.14)
 - open/close 4378 (time 1788662600.87 total 50.03 last 86.95)
 - open/close 5185 (time 1788662610.88 total 60.04 last 80.63)
 - open/close 5924 (time 1788662620.89 total 70.04 last 73.87)
 - open/close 6860 (time 1788662630.90 total 80.06 last 93.43)
 - open/close 7613 (time 1788662640.91 total 90.07 last 75.22)
total: 8000 open/close in 94.01 seconds: 85.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1788662793 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 975 (time 1788662898.62 total 10.00 last 97.47)
 - open/close 1924 (time 1788662908.62 total 20.01 last 94.85)
 - open/close 2864 (time 1788662918.63 total 30.02 last 93.93)
 - open/close 3775 (time 1788662928.64 total 40.02 last 91.04)
 - open/close 4621 (time 1788662938.64 total 50.03 last 84.56)
 - open/close 5411 (time 1788662948.65 total 60.04 last 78.92)
 - open/close 6306 (time 1788662958.67 total 70.06 last 89.34)
 - open/close 7140 (time 1788662968.68 total 80.07 last 83.29)
total: 8000 open/close in 89.84 seconds: 89.04 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4006
4001
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1788663086 ; total 0 ; last 0)
total: 8000 unlinks in 51 seconds: 156.862747 unlinks/second