== sanity test 124b: lru resize (performance test) ================================================================================= 12:52:52 (1787590372)
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 688 (time 1787590388.05 total 10.02 last 68.65)
 - open/close 1361 (time 1787590398.07 total 20.04 last 67.20)
 - open/close 2030 (time 1787590408.07 total 30.04 last 66.90)
 - open/close 2795 (time 1787590418.07 total 40.04 last 76.46)
 - open/close 3702 (time 1787590428.08 total 50.05 last 90.66)
 - open/close 4537 (time 1787590438.09 total 60.06 last 83.38)
 - open/close 5363 (time 1787590448.10 total 70.07 last 82.52)
 - open/close 6179 (time 1787590458.11 total 80.08 last 81.53)
 - open/close 6934 (time 1787590468.12 total 90.08 last 75.46)
 - open/close 7663 (time 1787590478.12 total 100.09 last 72.89)
total: 8000 open/close in 104.39 seconds: 76.63 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1787590657 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 866 (time 1787590770.29 total 10.00 last 86.59)
 - open/close 1698 (time 1787590780.30 total 20.01 last 83.16)
 - open/close 2530 (time 1787590790.30 total 30.01 last 83.17)
 - open/close 3434 (time 1787590800.33 total 40.04 last 90.11)
 - open/close 4282 (time 1787590810.35 total 50.06 last 84.63)
 - open/close 5139 (time 1787590820.37 total 60.08 last 85.58)
 - open/close 6109 (time 1787590830.39 total 70.10 last 96.78)
 - open/close 6911 (time 1787590840.39 total 80.10 last 80.20)
 - open/close 7716 (time 1787590850.40 total 90.11 last 80.42)
total: 8000 open/close in 93.94 seconds: 85.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 4006
4001
ls -la is 45% faster with lru resize enabled
 - unlinked 0 (time 1787590960 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second