== sanity test 124b: lru resize (performance test) ================================================================================= 00:38:15 (1788496695)
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 795 (time 1788496710.58 total 10.01 last 79.45)
 - open/close 1448 (time 1788496720.59 total 20.01 last 65.27)
 - open/close 2192 (time 1788496730.59 total 30.01 last 74.38)
 - open/close 2933 (time 1788496740.60 total 40.03 last 74.02)
 - open/close 3636 (time 1788496750.61 total 50.03 last 70.26)
 - open/close 4367 (time 1788496760.61 total 60.03 last 73.07)
 - open/close 5123 (time 1788496770.62 total 70.04 last 75.56)
 - open/close 5903 (time 1788496780.62 total 80.04 last 77.99)
 - open/close 6613 (time 1788496790.63 total 90.05 last 70.91)
 - open/close 7212 (time 1788496800.64 total 100.07 last 59.83)
 - open/close 7809 (time 1788496810.65 total 110.08 last 59.62)
total: 8000 open/close in 113.31 seconds: 70.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 400
400
 - unlinked 0 (time 1788496936 ; total 0 ; last 0)
total: 8000 unlinks in 128 seconds: 62.500000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 619 (time 1788497080.89 total 10.01 last 61.86)
 - open/close 1139 (time 1788497090.90 total 20.01 last 51.96)
 - open/close 1642 (time 1788497100.92 total 30.03 last 50.22)
 - open/close 2154 (time 1788497110.93 total 40.05 last 51.13)
 - open/close 2667 (time 1788497120.94 total 50.05 last 51.25)
 - open/close 3203 (time 1788497130.95 total 60.06 last 53.57)
 - open/close 3803 (time 1788497140.95 total 70.07 last 59.95)
 - open/close 4467 (time 1788497150.96 total 80.07 last 66.39)
 - open/close 5072 (time 1788497160.97 total 90.08 last 60.43)
 - open/close 5790 (time 1788497170.98 total 100.09 last 71.74)
 - open/close 6502 (time 1788497180.99 total 110.10 last 71.11)
 - open/close 7164 (time 1788497191.00 total 120.12 last 66.11)
 - open/close 7753 (time 1788497201.01 total 130.12 last 58.88)
total: 8000 open/close in 133.66 seconds: 59.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 115 seconds
lru_size = 4006
4001
ls -la is 6% slower with lru resize enabled
 - unlinked 0 (time 1788497343 ; total 0 ; last 0)
total: 8000 unlinks in 78 seconds: 102.564102 unlinks/second