== sanity test 124b: lru resize (performance test) ================================================================================= 14:43:54 (1752518634)
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 775 (time 1752518648.96 total 10.01 last 77.45)
 - open/close 1530 (time 1752518658.97 total 20.01 last 75.46)
 - open/close 2370 (time 1752518668.97 total 30.01 last 83.98)
 - open/close 3173 (time 1752518678.98 total 40.02 last 80.23)
 - open/close 3969 (time 1752518688.98 total 50.02 last 79.59)
 - open/close 4796 (time 1752518699.00 total 60.05 last 82.53)
 - open/close 5387 (time 1752518709.01 total 70.05 last 59.08)
 - open/close 6138 (time 1752518719.02 total 80.06 last 75.01)
 - open/close 6923 (time 1752518729.03 total 90.07 last 78.44)
 - open/close 7775 (time 1752518739.04 total 100.08 last 85.10)
total: 8000 open/close in 102.84 seconds: 77.79 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1752518905 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 782 (time 1752519015.14 total 10.01 last 78.15)
 - open/close 1548 (time 1752519025.15 total 20.01 last 76.56)
 - open/close 2334 (time 1752519035.15 total 30.02 last 78.57)
 - open/close 3136 (time 1752519045.17 total 40.03 last 80.11)
 - open/close 3886 (time 1752519055.18 total 50.04 last 74.89)
 - open/close 4604 (time 1752519065.18 total 60.05 last 71.78)
 - open/close 5286 (time 1752519075.19 total 70.06 last 68.13)
 - open/close 6056 (time 1752519085.20 total 80.06 last 76.96)
 - open/close 6860 (time 1752519095.20 total 90.07 last 80.35)
 - open/close 7651 (time 1752519105.21 total 100.07 last 79.06)
total: 8000 open/close in 104.58 seconds: 76.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 74 seconds
lru_size = 4006
4001
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1752519200 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second