== sanity test 124b: lru resize (performance test) ================================================================================= 16:34:15 (1788208455)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 926 (time 1788208469.70 total 10.00 last 92.59)
 - open/close 1726 (time 1788208479.71 total 20.01 last 79.94)
 - open/close 2524 (time 1788208489.72 total 30.02 last 79.69)
 - open/close 3389 (time 1788208499.73 total 40.03 last 86.46)
 - open/close 4222 (time 1788208509.73 total 50.03 last 83.29)
 - open/close 5172 (time 1788208519.73 total 60.03 last 94.94)
 - open/close 6119 (time 1788208529.74 total 70.04 last 94.64)
 - open/close 7023 (time 1788208539.74 total 80.04 last 90.38)
 - open/close 7959 (time 1788208549.75 total 90.05 last 93.56)
total: 8000 open/close in 90.48 seconds: 88.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 136 seconds
lru_size = 400
400
 - unlinked 0 (time 1788208696 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 903 (time 1788208800.20 total 10.00 last 90.26)
 - open/close 1759 (time 1788208810.21 total 20.01 last 85.55)
 - open/close 2657 (time 1788208820.21 total 30.02 last 89.73)
 - open/close 3561 (time 1788208830.22 total 40.02 last 90.38)
 - open/close 4476 (time 1788208840.23 total 50.03 last 91.42)
 - open/close 5378 (time 1788208850.23 total 60.04 last 90.12)
 - open/close 6361 (time 1788208860.24 total 70.04 last 98.22)
 - open/close 7322 (time 1788208870.25 total 80.05 last 96.04)
total: 8000 open/close in 87.19 seconds: 91.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1788208982 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second