== sanity test 124b: lru resize (performance test) ================================================================================= 03:53:21 (1789458801)
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 777 (time 1789458816.45 total 10.02 last 77.57)
 - open/close 1512 (time 1789458826.45 total 20.02 last 73.49)
 - open/close 2279 (time 1789458836.45 total 30.02 last 76.64)
 - open/close 3048 (time 1789458846.46 total 40.03 last 76.84)
 - open/close 3793 (time 1789458856.46 total 50.03 last 74.49)
 - open/close 4569 (time 1789458866.47 total 60.04 last 77.56)
 - open/close 5401 (time 1789458876.47 total 70.04 last 83.15)
 - open/close 6203 (time 1789458886.49 total 80.06 last 80.10)
 - open/close 6908 (time 1789458896.49 total 90.06 last 70.46)
 - open/close 7602 (time 1789458906.49 total 100.06 last 69.39)
total: 8000 open/close in 106.15 seconds: 75.37 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 98 seconds
lru_size = 400
400
 - unlinked 0 (time 1789459023 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 818 (time 1789459139.37 total 10.00 last 81.77)
 - open/close 1664 (time 1789459149.38 total 20.02 last 84.44)
 - open/close 2541 (time 1789459159.40 total 30.04 last 87.53)
 - open/close 3481 (time 1789459169.41 total 40.05 last 93.93)
 - open/close 4411 (time 1789459179.42 total 50.06 last 92.91)
 - open/close 5292 (time 1789459189.43 total 60.07 last 88.02)
 - open/close 5992 (time 1789459199.45 total 70.08 last 69.88)
 - open/close 6941 (time 1789459209.45 total 80.09 last 94.87)
 - open/close 7695 (time 1789459219.46 total 90.10 last 75.34)
total: 8000 open/close in 94.24 seconds: 84.89 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 11% faster with lru resize enabled
 - unlinked 0 (time 1789459334 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second