== sanity test 124b: lru resize (performance test) ================================================================================= 07:01:56 (1779879716)
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 798 (time 1779879731.31 total 10.00 last 79.80)
 - open/close 1622 (time 1779879741.32 total 20.01 last 82.32)
 - open/close 2523 (time 1779879751.33 total 30.02 last 90.01)
 - open/close 3341 (time 1779879761.33 total 40.02 last 81.79)
 - open/close 4167 (time 1779879771.34 total 50.03 last 82.56)
 - open/close 4920 (time 1779879781.34 total 60.03 last 75.29)
 - open/close 5660 (time 1779879791.34 total 70.03 last 73.97)
 - open/close 6473 (time 1779879801.34 total 80.03 last 81.28)
 - open/close 7190 (time 1779879811.35 total 90.04 last 71.69)
 - open/close 7923 (time 1779879821.35 total 100.04 last 73.26)
total: 8000 open/close in 101.02 seconds: 79.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 107 seconds
lru_size = 400
400
 - unlinked 0 (time 1779879939 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 805 (time 1779880055.07 total 10.00 last 80.46)
 - open/close 1802 (time 1779880065.08 total 20.01 last 99.61)
 - open/close 2688 (time 1779880075.08 total 30.02 last 88.54)
 - open/close 3490 (time 1779880085.09 total 40.02 last 80.17)
 - open/close 4260 (time 1779880095.09 total 50.03 last 76.95)
 - open/close 5057 (time 1779880105.10 total 60.04 last 79.62)
 - open/close 5867 (time 1779880115.11 total 70.05 last 80.94)
 - open/close 6679 (time 1779880125.11 total 80.05 last 81.18)
 - open/close 7531 (time 1779880135.13 total 90.06 last 85.08)
total: 8000 open/close in 95.42 seconds: 83.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 14% faster with lru resize enabled
 - unlinked 0 (time 1779880255 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second