== sanity test 124b: lru resize (performance test) ================================================================================= 11:21:54 (1787584914)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 786 (time 1787584929.05 total 10.00 last 78.57)
 - open/close 1518 (time 1787584939.06 total 20.01 last 73.12)
 - open/close 2360 (time 1787584949.07 total 30.02 last 84.12)
 - open/close 3303 (time 1787584959.08 total 40.03 last 94.21)
 - open/close 4191 (time 1787584969.08 total 50.04 last 88.77)
 - open/close 5070 (time 1787584979.09 total 60.05 last 87.83)
 - open/close 5958 (time 1787584989.09 total 70.05 last 88.75)
 - open/close 6714 (time 1787584999.10 total 80.05 last 75.59)
 - open/close 7593 (time 1787585009.10 total 90.05 last 87.90)
total: 8000 open/close in 94.84 seconds: 84.35 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 1787585161 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 966 (time 1787585261.85 total 10.01 last 96.52)
 - open/close 1937 (time 1787585271.86 total 20.01 last 97.07)
 - open/close 2890 (time 1787585281.86 total 30.01 last 95.27)
 - open/close 3817 (time 1787585291.86 total 40.01 last 92.69)
 - open/close 4732 (time 1787585301.87 total 50.02 last 91.44)
 - open/close 5703 (time 1787585311.87 total 60.02 last 97.07)
 - open/close 6632 (time 1787585321.88 total 70.04 last 92.79)
 - open/close 7541 (time 1787585331.89 total 80.04 last 90.86)
total: 8000 open/close in 83.98 seconds: 95.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1787585435 ; total 0 ; last 0)
total: 8000 unlinks in 51 seconds: 156.862747 unlinks/second