== sanity test 124b: lru resize (performance test) ================================================================================= 04:16:23 (1787559383)
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 761 (time 1787559398.51 total 10.01 last 76.02)
 - open/close 1568 (time 1787559408.51 total 20.01 last 80.68)
 - open/close 2359 (time 1787559418.52 total 30.02 last 79.04)
 - open/close 3190 (time 1787559428.52 total 40.03 last 83.05)
 - open/close 4021 (time 1787559438.53 total 50.03 last 83.03)
 - open/close 4911 (time 1787559448.54 total 60.05 last 88.90)
 - open/close 5653 (time 1787559458.56 total 70.06 last 74.07)
 - open/close 6375 (time 1787559468.57 total 80.07 last 72.14)
 - open/close 7081 (time 1787559478.57 total 90.07 last 70.59)
 - open/close 7771 (time 1787559488.57 total 100.08 last 68.96)
total: 8000 open/close in 102.96 seconds: 77.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 180 seconds
lru_size = 400
400
 - unlinked 0 (time 1787559682 ; total 0 ; last 0)
total: 8000 unlinks in 114 seconds: 70.175438 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 812 (time 1787559811.82 total 10.01 last 81.15)
 - open/close 1464 (time 1787559821.82 total 20.01 last 65.18)
 - open/close 2039 (time 1787559831.84 total 30.02 last 57.42)
 - open/close 2639 (time 1787559841.84 total 40.03 last 59.96)
 - open/close 3223 (time 1787559851.86 total 50.04 last 58.32)
 - open/close 4058 (time 1787559861.87 total 60.05 last 83.44)
 - open/close 4797 (time 1787559871.87 total 70.05 last 73.88)
 - open/close 5628 (time 1787559881.87 total 80.05 last 83.10)
 - open/close 6465 (time 1787559891.88 total 90.06 last 83.61)
 - open/close 7200 (time 1787559901.89 total 100.07 last 73.42)
 - open/close 7971 (time 1787559911.90 total 110.08 last 77.05)
total: 8000 open/close in 110.36 seconds: 72.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1787560032 ; total 0 ; last 0)
total: 8000 unlinks in 83 seconds: 96.385544 unlinks/second