== sanity test 124b: lru resize (performance test) ================================================================================= 01:48:52 (1788846532)
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 937 (time 1788846547.81 total 10.00 last 93.66)
 - open/close 1763 (time 1788846557.82 total 20.01 last 82.55)
 - open/close 2658 (time 1788846567.82 total 30.01 last 89.46)
 - open/close 3464 (time 1788846577.83 total 40.02 last 80.58)
 - open/close 4332 (time 1788846587.84 total 50.03 last 86.66)
 - open/close 5161 (time 1788846597.85 total 60.04 last 82.83)
 - open/close 5948 (time 1788846607.85 total 70.04 last 78.67)
 - open/close 6766 (time 1788846617.86 total 80.05 last 81.74)
 - open/close 7559 (time 1788846627.87 total 90.05 last 79.27)
total: 8000 open/close in 95.32 seconds: 83.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1788846796 ; 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 897 (time 1788846906.87 total 10.00 last 89.67)
 - open/close 1729 (time 1788846916.88 total 20.01 last 83.12)
 - open/close 2672 (time 1788846926.89 total 30.02 last 94.20)
 - open/close 3497 (time 1788846936.90 total 40.03 last 82.46)
 - open/close 4315 (time 1788846946.90 total 50.03 last 81.75)
 - open/close 5082 (time 1788846956.90 total 60.03 last 76.70)
 - open/close 5894 (time 1788846966.91 total 70.04 last 81.17)
 - open/close 6774 (time 1788846976.91 total 80.04 last 87.99)
 - open/close 7677 (time 1788846986.92 total 90.05 last 90.18)
total: 8000 open/close in 94.00 seconds: 85.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788847090 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second