== sanity test 124b: lru resize (performance test) ================================================================================= 06:42:06 (1788604926)
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 795 (time 1788604941.66 total 10.00 last 79.46)
 - open/close 1514 (time 1788604951.67 total 20.01 last 71.84)
 - open/close 2369 (time 1788604961.68 total 30.02 last 85.43)
 - open/close 3005 (time 1788604971.70 total 40.04 last 63.48)
 - open/close 3808 (time 1788604981.71 total 50.05 last 80.24)
 - open/close 4641 (time 1788604991.72 total 60.06 last 83.24)
 - open/close 5451 (time 1788605001.72 total 70.06 last 80.95)
 - open/close 6243 (time 1788605011.73 total 80.07 last 79.14)
 - open/close 6997 (time 1788605021.73 total 90.07 last 75.37)
 - open/close 7788 (time 1788605031.75 total 100.09 last 78.98)
total: 8000 open/close in 102.80 seconds: 77.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1788605201 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 811 (time 1788605312.13 total 10.01 last 80.99)
 - open/close 1656 (time 1788605322.13 total 20.02 last 84.48)
 - open/close 2388 (time 1788605332.13 total 30.02 last 73.17)
 - open/close 3253 (time 1788605342.14 total 40.03 last 86.43)
 - open/close 4107 (time 1788605352.15 total 50.04 last 85.30)
 - open/close 5074 (time 1788605362.16 total 60.04 last 96.66)
 - open/close 5936 (time 1788605372.16 total 70.05 last 86.14)
 - open/close 6782 (time 1788605382.17 total 80.06 last 84.56)
 - open/close 7523 (time 1788605392.17 total 90.06 last 74.07)
total: 8000 open/close in 95.76 seconds: 83.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 103 seconds
lru_size = 4052
3955
ls -la is 33% faster with lru resize enabled
 - unlinked 0 (time 1788605523 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second