== sanity test 124b: lru resize (performance test) ================================================================================= 23:48:59 (1781236139)
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 759 (time 1781236154.69 total 10.00 last 75.89)
 - open/close 1510 (time 1781236164.69 total 20.00 last 75.10)
 - open/close 2373 (time 1781236174.70 total 30.01 last 86.22)
 - open/close 3089 (time 1781236184.70 total 40.02 last 71.56)
 - open/close 3892 (time 1781236194.70 total 50.02 last 80.28)
 - open/close 4519 (time 1781236204.73 total 60.05 last 62.53)
 - open/close 5062 (time 1781236214.73 total 70.05 last 54.29)
 - open/close 5683 (time 1781236224.75 total 80.06 last 62.02)
 - open/close 6406 (time 1781236234.75 total 90.07 last 72.27)
 - open/close 7328 (time 1781236244.75 total 100.07 last 92.18)
total: 8000 open/close in 108.39 seconds: 73.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1781236414 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 868 (time 1781236530.03 total 10.01 last 86.71)
 - open/close 1623 (time 1781236540.05 total 20.02 last 75.41)
 - open/close 2296 (time 1781236550.06 total 30.03 last 67.24)
 - open/close 3061 (time 1781236560.06 total 40.04 last 76.46)
 - open/close 3960 (time 1781236570.08 total 50.06 last 89.71)
 - open/close 4758 (time 1781236580.09 total 60.07 last 79.75)
 - open/close 5618 (time 1781236590.10 total 70.07 last 85.93)
 - open/close 6491 (time 1781236600.10 total 80.08 last 87.25)
 - open/close 7455 (time 1781236610.11 total 90.08 last 96.38)
total: 8000 open/close in 96.16 seconds: 83.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1781236725 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second