== sanity test 124b: lru resize (performance test) ================================================================================= 18:28:07 (1788647287)
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 711 (time 1788647303.55 total 10.02 last 70.96)
 - open/close 1540 (time 1788647313.56 total 20.03 last 82.84)
 - open/close 2264 (time 1788647323.56 total 30.03 last 72.36)
 - open/close 3057 (time 1788647333.60 total 40.07 last 78.98)
 - open/close 3718 (time 1788647343.61 total 50.08 last 66.03)
 - open/close 4501 (time 1788647353.62 total 60.10 last 78.22)
 - open/close 5263 (time 1788647363.63 total 70.10 last 76.15)
 - open/close 6037 (time 1788647373.64 total 80.11 last 77.34)
 - open/close 6856 (time 1788647383.64 total 90.11 last 81.88)
 - open/close 7692 (time 1788647393.65 total 100.12 last 83.56)
total: 8000 open/close in 103.80 seconds: 77.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1788647567 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 710 (time 1788647687.62 total 10.01 last 70.93)
 - open/close 1463 (time 1788647697.62 total 20.01 last 75.27)
 - open/close 2317 (time 1788647707.63 total 30.02 last 85.32)
 - open/close 3024 (time 1788647717.64 total 40.03 last 70.66)
 - open/close 3818 (time 1788647727.66 total 50.05 last 79.25)
 - open/close 4637 (time 1788647737.67 total 60.06 last 81.84)
 - open/close 5410 (time 1788647747.67 total 70.06 last 77.30)
 - open/close 6176 (time 1788647757.67 total 80.06 last 76.54)
 - open/close 6937 (time 1788647767.68 total 90.07 last 76.08)
 - open/close 7738 (time 1788647777.68 total 100.07 last 80.08)
total: 8000 open/close in 103.54 seconds: 77.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788647883 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second