== sanity test 124b: lru resize (performance test) ================================================================================= 13:00:49 (1787850049)
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 839 (time 1787850064.49 total 10.00 last 83.87)
 - open/close 1729 (time 1787850074.49 total 20.00 last 89.00)
 - open/close 2619 (time 1787850084.49 total 30.01 last 88.96)
 - open/close 3532 (time 1787850094.50 total 40.01 last 91.26)
 - open/close 4474 (time 1787850104.50 total 50.02 last 94.16)
 - open/close 5423 (time 1787850114.51 total 60.03 last 94.81)
 - open/close 6403 (time 1787850124.51 total 70.03 last 97.99)
 - open/close 7194 (time 1787850134.51 total 80.03 last 79.10)
total: 8000 open/close in 89.56 seconds: 89.33 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 150 seconds
lru_size = 400
400
 - unlinked 0 (time 1787850303 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 906 (time 1787850402.71 total 10.00 last 90.56)
 - open/close 1835 (time 1787850412.73 total 20.02 last 92.77)
 - open/close 2760 (time 1787850422.73 total 30.02 last 92.44)
 - open/close 3609 (time 1787850432.73 total 40.03 last 84.88)
 - open/close 4461 (time 1787850442.74 total 50.03 last 85.16)
 - open/close 5378 (time 1787850452.75 total 60.04 last 91.59)
 - open/close 6252 (time 1787850462.76 total 70.05 last 87.34)
 - open/close 7199 (time 1787850472.77 total 80.06 last 94.57)
total: 8000 open/close in 89.28 seconds: 89.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787850580 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second