== sanity test 124b: lru resize (performance test) ================================================================================= 12:04:08 (1788537848)
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 836 (time 1788537863.60 total 10.01 last 83.52)
 - open/close 1598 (time 1788537873.60 total 20.01 last 76.16)
 - open/close 2307 (time 1788537883.61 total 30.03 last 70.81)
 - open/close 2959 (time 1788537893.62 total 40.03 last 65.18)
 - open/close 3678 (time 1788537903.63 total 50.04 last 71.81)
 - open/close 4380 (time 1788537913.64 total 60.05 last 70.15)
 - open/close 5116 (time 1788537923.66 total 70.07 last 73.42)
 - open/close 5917 (time 1788537933.66 total 80.08 last 80.07)
 - open/close 6675 (time 1788537943.67 total 90.08 last 75.78)
 - open/close 7429 (time 1788537953.67 total 100.08 last 75.38)
total: 8000 open/close in 107.51 seconds: 74.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1788538131 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 832 (time 1788538246.28 total 10.01 last 83.11)
 - open/close 1652 (time 1788538256.28 total 20.01 last 81.99)
 - open/close 2527 (time 1788538266.28 total 30.01 last 87.49)
 - open/close 3336 (time 1788538276.29 total 40.02 last 80.85)
 - open/close 4174 (time 1788538286.29 total 50.02 last 83.79)
 - open/close 4953 (time 1788538296.30 total 60.03 last 77.85)
 - open/close 5757 (time 1788538306.30 total 70.03 last 80.37)
 - open/close 6575 (time 1788538316.30 total 80.03 last 81.79)
 - open/close 7348 (time 1788538326.32 total 90.05 last 77.18)
total: 8000 open/close in 98.80 seconds: 80.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 95 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788538449 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second