== sanity test 124b: lru resize (performance test) ================================================================================= 13:36:24 (1790789784)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 901 (time 1790789799.16 total 10.01 last 89.99)
 - open/close 1819 (time 1790789809.16 total 20.02 last 91.74)
 - open/close 2607 (time 1790789819.16 total 30.02 last 78.80)
 - open/close 3212 (time 1790789829.17 total 40.03 last 60.46)
 - open/close 3903 (time 1790789839.17 total 50.03 last 69.10)
 - open/close 4856 (time 1790789849.18 total 60.03 last 95.24)
 - open/close 5717 (time 1790789859.18 total 70.03 last 86.09)
 - open/close 6608 (time 1790789869.19 total 80.04 last 89.01)
 - open/close 7540 (time 1790789879.19 total 90.04 last 93.20)
total: 8000 open/close in 96.41 seconds: 82.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 176 seconds
lru_size = 400
400
 - unlinked 0 (time 1790790072 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 837 (time 1790790179.59 total 10.01 last 83.64)
 - open/close 1529 (time 1790790189.60 total 20.02 last 69.10)
 - open/close 2363 (time 1790790199.60 total 30.02 last 83.40)
 - open/close 3297 (time 1790790209.61 total 40.03 last 93.37)
 - open/close 4221 (time 1790790219.61 total 50.03 last 92.35)
 - open/close 5174 (time 1790790229.62 total 60.04 last 95.25)
 - open/close 6053 (time 1790790239.62 total 70.04 last 87.85)
 - open/close 7046 (time 1790790249.62 total 80.04 last 99.29)
 - open/close 7930 (time 1790790259.64 total 90.06 last 88.29)
total: 8000 open/close in 91.00 seconds: 87.91 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 50% faster with lru resize enabled
 - unlinked 0 (time 1790790370 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second