== sanity test 124b: lru resize (performance test) ================================================================================= 14:26:09 (1788459969)
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 838 (time 1788459984.94 total 10.01 last 83.75)
 - open/close 1608 (time 1788459994.96 total 20.02 last 76.92)
 - open/close 2430 (time 1788460004.96 total 30.02 last 82.20)
 - open/close 3219 (time 1788460014.96 total 40.02 last 78.84)
 - open/close 3865 (time 1788460024.96 total 50.03 last 64.59)
 - open/close 4523 (time 1788460034.97 total 60.03 last 65.74)
 - open/close 5167 (time 1788460044.98 total 70.05 last 64.33)
 - open/close 5839 (time 1788460054.99 total 80.05 last 67.19)
 - open/close 6434 (time 1788460065.00 total 90.06 last 59.43)
 - open/close 7161 (time 1788460075.00 total 100.06 last 72.66)
 - open/close 7951 (time 1788460085.01 total 110.07 last 78.98)
total: 8000 open/close in 110.68 seconds: 72.28 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1788460255 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 784 (time 1788460378.60 total 10.01 last 78.35)
 - open/close 1597 (time 1788460388.60 total 20.01 last 81.28)
 - open/close 2374 (time 1788460398.61 total 30.01 last 77.69)
 - open/close 3227 (time 1788460408.62 total 40.03 last 85.16)
 - open/close 4021 (time 1788460418.64 total 50.04 last 79.29)
 - open/close 4793 (time 1788460428.64 total 60.05 last 77.14)
 - open/close 5622 (time 1788460438.65 total 70.06 last 82.84)
 - open/close 6389 (time 1788460448.67 total 80.07 last 76.57)
 - open/close 7183 (time 1788460458.67 total 90.07 last 79.39)
 - open/close 7962 (time 1788460468.67 total 100.08 last 77.86)
total: 8000 open/close in 100.44 seconds: 79.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788460574 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second