== sanity test 124b: lru resize (performance test) ================================================================================= 21:47:29 (1787708849)
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 816 (time 1787708863.91 total 10.01 last 81.51)
 - open/close 1628 (time 1787708873.91 total 20.01 last 81.17)
 - open/close 2434 (time 1787708883.91 total 30.01 last 80.59)
 - open/close 3188 (time 1787708893.92 total 40.02 last 75.33)
 - open/close 4022 (time 1787708903.93 total 50.03 last 83.35)
 - open/close 4805 (time 1787708913.93 total 60.03 last 78.29)
 - open/close 5641 (time 1787708923.96 total 70.07 last 83.31)
 - open/close 6429 (time 1787708933.97 total 80.07 last 78.74)
 - open/close 7225 (time 1787708943.99 total 90.09 last 79.48)
 - open/close 7988 (time 1787708953.99 total 100.09 last 76.28)
total: 8000 open/close in 100.21 seconds: 79.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 174 seconds
lru_size = 400
400
 - unlinked 0 (time 1787709138 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 855 (time 1787709249.52 total 10.00 last 85.47)
 - open/close 1636 (time 1787709259.52 total 20.00 last 78.10)
 - open/close 2399 (time 1787709269.53 total 30.02 last 76.20)
 - open/close 3182 (time 1787709279.54 total 40.02 last 78.24)
 - open/close 4004 (time 1787709289.55 total 50.03 last 82.13)
 - open/close 4843 (time 1787709299.55 total 60.04 last 83.84)
 - open/close 5496 (time 1787709309.56 total 70.04 last 65.28)
 - open/close 6206 (time 1787709319.56 total 80.05 last 70.97)
 - open/close 6818 (time 1787709329.57 total 90.06 last 61.13)
 - open/close 7605 (time 1787709339.58 total 100.06 last 78.66)
total: 8000 open/close in 105.66 seconds: 75.72 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1787709459 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second