== sanity test 124b: lru resize (performance test) ================================================================================= 12:49:03 (1782233343)
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 759 (time 1782233357.05 total 10.02 last 75.78)
 - open/close 1537 (time 1782233367.06 total 20.02 last 77.74)
 - open/close 2313 (time 1782233377.06 total 30.02 last 77.59)
 - open/close 3112 (time 1782233387.06 total 40.03 last 79.86)
 - open/close 3794 (time 1782233397.09 total 50.05 last 68.04)
 - open/close 4529 (time 1782233407.10 total 60.06 last 73.43)
 - open/close 5308 (time 1782233417.11 total 70.07 last 77.82)
 - open/close 5989 (time 1782233427.11 total 80.07 last 68.09)
 - open/close 6652 (time 1782233437.11 total 90.07 last 66.29)
 - open/close 7353 (time 1782233447.11 total 100.08 last 70.10)
total: 8000 open/close in 108.55 seconds: 73.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 168 seconds
lru_size = 400
400
 - unlinked 0 (time 1782233634 ; total 0 ; last 0)
total: 8000 unlinks in 104 seconds: 76.923080 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 765 (time 1782233752.87 total 10.01 last 76.45)
 - open/close 1585 (time 1782233762.87 total 20.01 last 81.96)
 - open/close 2312 (time 1782233772.88 total 30.02 last 72.63)
 - open/close 3090 (time 1782233782.88 total 40.02 last 77.78)
 - open/close 3839 (time 1782233792.89 total 50.03 last 74.85)
 - open/close 4630 (time 1782233802.90 total 60.04 last 79.00)
 - open/close 5369 (time 1782233812.91 total 70.06 last 73.81)
 - open/close 6104 (time 1782233822.93 total 80.07 last 73.41)
 - open/close 6839 (time 1782233832.93 total 90.07 last 73.47)
 - open/close 7652 (time 1782233842.93 total 100.08 last 81.27)
total: 8000 open/close in 104.44 seconds: 76.60 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 47% faster with lru resize enabled
 - unlinked 0 (time 1782233953 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second