== sanity test 124b: lru resize (performance test) ================================================================================= 12:53:06 (1786380786)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 890 (time 1786380801.45 total 10.00 last 88.98)
 - open/close 1783 (time 1786380811.46 total 20.02 last 89.18)
 - open/close 2686 (time 1786380821.46 total 30.02 last 90.29)
 - open/close 3567 (time 1786380831.47 total 40.02 last 88.04)
 - open/close 4454 (time 1786380841.48 total 50.03 last 88.63)
 - open/close 5381 (time 1786380851.48 total 60.04 last 92.64)
 - open/close 6164 (time 1786380861.50 total 70.06 last 78.14)
 - open/close 7131 (time 1786380871.51 total 80.06 last 96.67)
total: 8000 open/close in 90.06 seconds: 88.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1786381047 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 879 (time 1786381163.75 total 10.00 last 87.89)
 - open/close 1793 (time 1786381173.76 total 20.01 last 91.32)
 - open/close 2582 (time 1786381183.76 total 30.01 last 78.87)
 - open/close 3559 (time 1786381193.77 total 40.02 last 97.63)
 - open/close 4455 (time 1786381203.78 total 50.02 last 89.57)
 - open/close 5427 (time 1786381213.80 total 60.05 last 96.98)
 - open/close 6239 (time 1786381223.81 total 70.06 last 81.13)
 - open/close 7098 (time 1786381233.82 total 80.07 last 85.81)
 - open/close 7905 (time 1786381243.83 total 90.08 last 80.62)
total: 8000 open/close in 91.36 seconds: 87.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 104 seconds
lru_size = 4006
4001
ls -la is 33% faster with lru resize enabled
 - unlinked 0 (time 1786381374 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second