== sanity test 124b: lru resize (performance test) ================================================================================= 11:12:58 (1788189178)
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 745 (time 1788189193.76 total 10.01 last 74.45)
 - open/close 1548 (time 1788189203.76 total 20.01 last 80.27)
 - open/close 2394 (time 1788189213.76 total 30.01 last 84.57)
 - open/close 3140 (time 1788189223.77 total 40.02 last 74.53)
 - open/close 3810 (time 1788189233.80 total 50.05 last 66.80)
 - open/close 4645 (time 1788189243.82 total 60.07 last 83.39)
 - open/close 5255 (time 1788189253.83 total 70.08 last 60.89)
 - open/close 5886 (time 1788189263.84 total 80.09 last 63.08)
 - open/close 6739 (time 1788189273.85 total 90.10 last 85.19)
 - open/close 7548 (time 1788189283.86 total 100.11 last 80.83)
total: 8000 open/close in 104.92 seconds: 76.25 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 174 seconds
lru_size = 400
400
 - unlinked 0 (time 1788189473 ; total 0 ; last 0)
total: 8000 unlinks in 122 seconds: 65.573769 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 820 (time 1788189610.34 total 10.00 last 81.97)
 - open/close 1389 (time 1788189620.35 total 20.01 last 56.87)
 - open/close 2080 (time 1788189630.35 total 30.01 last 69.09)
 - open/close 2803 (time 1788189640.36 total 40.02 last 72.21)
 - open/close 3598 (time 1788189650.37 total 50.03 last 79.45)
 - open/close 4377 (time 1788189660.38 total 60.04 last 77.81)
 - open/close 5139 (time 1788189670.39 total 70.05 last 76.15)
 - open/close 5968 (time 1788189680.39 total 80.05 last 82.89)
 - open/close 6776 (time 1788189690.39 total 90.05 last 80.76)
 - open/close 7418 (time 1788189700.41 total 100.07 last 64.12)
total: 8000 open/close in 109.63 seconds: 72.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788189831 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second