== sanity test 124b: lru resize (performance test) ================================================================================= 23:44:45 (1786679085)
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 1064 (time 1786679100.76 total 10.00 last 106.39)
 - open/close 2032 (time 1786679110.77 total 20.01 last 96.71)
 - open/close 2819 (time 1786679120.78 total 30.02 last 78.66)
 - open/close 3658 (time 1786679130.79 total 40.03 last 83.82)
 - open/close 4523 (time 1786679140.82 total 50.06 last 86.21)
 - open/close 5347 (time 1786679150.82 total 60.06 last 82.38)
 - open/close 6308 (time 1786679160.83 total 70.07 last 96.05)
 - open/close 7153 (time 1786679170.83 total 80.07 last 84.49)
 - open/close 7919 (time 1786679180.84 total 90.08 last 76.54)
total: 8000 open/close in 91.05 seconds: 87.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1786679345 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 892 (time 1786679448.90 total 10.00 last 89.17)
 - open/close 1841 (time 1786679458.90 total 20.01 last 94.87)
 - open/close 2787 (time 1786679468.92 total 30.02 last 94.46)
 - open/close 3524 (time 1786679478.92 total 40.03 last 73.65)
 - open/close 4107 (time 1786679488.92 total 50.03 last 58.30)
 - open/close 4987 (time 1786679498.93 total 60.03 last 87.98)
 - open/close 5794 (time 1786679508.93 total 70.04 last 80.65)
 - open/close 6745 (time 1786679518.93 total 80.04 last 95.10)
 - open/close 7748 (time 1786679528.94 total 90.04 last 100.25)
total: 8000 open/close in 93.15 seconds: 85.88 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 42% faster with lru resize enabled
 - unlinked 0 (time 1786679639 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second