== sanity test 124b: lru resize (performance test) ================================================================================= 09:12:43 (1787836363)
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 691 (time 1787836379.58 total 10.01 last 69.04)
 - open/close 1356 (time 1787836389.58 total 20.01 last 66.49)
 - open/close 2027 (time 1787836399.60 total 30.02 last 67.02)
 - open/close 2753 (time 1787836409.60 total 40.03 last 72.55)
 - open/close 3651 (time 1787836419.60 total 50.03 last 89.78)
 - open/close 4574 (time 1787836429.61 total 60.04 last 92.26)
 - open/close 5449 (time 1787836439.61 total 70.04 last 87.47)
 - open/close 6305 (time 1787836449.63 total 80.05 last 85.49)
 - open/close 7216 (time 1787836459.63 total 90.06 last 91.03)
 - open/close 7971 (time 1787836469.64 total 100.07 last 75.46)
total: 8000 open/close in 100.39 seconds: 79.69 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 163 seconds
lru_size = 400
400
 - unlinked 0 (time 1787836650 ; 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 683 (time 1787836782.23 total 10.00 last 68.28)
 - open/close 1483 (time 1787836792.23 total 20.00 last 79.99)
 - open/close 2303 (time 1787836802.24 total 30.02 last 81.88)
 - open/close 3059 (time 1787836812.25 total 40.02 last 75.58)
 - open/close 3792 (time 1787836822.28 total 50.05 last 73.07)
 - open/close 4577 (time 1787836832.28 total 60.06 last 78.47)
 - open/close 5352 (time 1787836842.28 total 70.06 last 77.48)
 - open/close 6202 (time 1787836852.29 total 80.06 last 84.96)
 - open/close 7016 (time 1787836862.29 total 90.07 last 81.37)
 - open/close 7782 (time 1787836872.31 total 100.09 last 76.44)
total: 8000 open/close in 102.76 seconds: 77.85 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 45% faster with lru resize enabled
 - unlinked 0 (time 1787836984 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second