== sanity test 124b: lru resize (performance test) ================================================================================= 04:21:59 (1788855719)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 711 (time 1788855735.24 total 10.00 last 71.09)
 - open/close 1339 (time 1788855745.24 total 20.00 last 62.77)
 - open/close 1922 (time 1788855755.25 total 30.01 last 58.24)
 - open/close 2717 (time 1788855765.26 total 40.02 last 79.43)
 - open/close 3522 (time 1788855775.30 total 50.06 last 80.19)
 - open/close 4308 (time 1788855785.30 total 60.06 last 78.60)
 - open/close 5155 (time 1788855795.33 total 70.09 last 84.49)
 - open/close 6064 (time 1788855805.34 total 80.10 last 90.80)
 - open/close 6891 (time 1788855815.35 total 90.11 last 82.64)
 - open/close 7718 (time 1788855825.35 total 100.11 last 82.67)
total: 8000 open/close in 103.81 seconds: 77.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 167 seconds
lru_size = 400
400
 - unlinked 0 (time 1788856007 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 812 (time 1788856117.15 total 10.01 last 81.10)
 - open/close 1646 (time 1788856127.15 total 20.02 last 83.33)
 - open/close 2548 (time 1788856137.17 total 30.03 last 90.09)
 - open/close 3307 (time 1788856147.18 total 40.04 last 75.83)
 - open/close 4077 (time 1788856157.18 total 50.04 last 76.99)
 - open/close 4705 (time 1788856167.18 total 60.05 last 62.76)
 - open/close 5324 (time 1788856177.19 total 70.06 last 61.86)
 - open/close 6084 (time 1788856187.20 total 80.07 last 75.91)
 - open/close 7056 (time 1788856197.20 total 90.07 last 97.18)
 - open/close 7827 (time 1788856207.21 total 100.07 last 77.08)
total: 8000 open/close in 102.85 seconds: 77.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 100 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788856335 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second