== sanity test 124b: lru resize (performance test) ================================================================================= 11:40:05 (1782488405)
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 635 (time 1782488421.39 total 10.01 last 63.43)
 - open/close 1189 (time 1782488431.40 total 20.02 last 55.37)
 - open/close 1766 (time 1782488441.41 total 30.02 last 57.66)
 - open/close 2502 (time 1782488451.42 total 40.04 last 73.49)
 - open/close 3183 (time 1782488461.43 total 50.05 last 68.03)
 - open/close 3846 (time 1782488471.43 total 60.05 last 66.30)
 - open/close 4517 (time 1782488481.44 total 70.06 last 67.05)
 - open/close 5280 (time 1782488491.45 total 80.07 last 76.22)
 - open/close 6180 (time 1782488501.46 total 90.08 last 89.92)
 - open/close 7105 (time 1782488511.47 total 100.09 last 92.41)
total: 8000 open/close in 108.22 seconds: 73.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 88 seconds
lru_size = 400
400
 - unlinked 0 (time 1782488611 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3591 (time 1782488635.57 total 10.00 last 359.08)
 - open/close 7435 (time 1782488645.58 total 20.00 last 384.34)
total: 8000 open/close in 21.62 seconds: 370.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 51 seconds
lru_size = 4006
4001
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1782488706 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second