== sanity test 124b: lru resize (performance test) ================================================================================= 03:23:31 (1788852211)
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 941 (time 1788852226.79 total 10.00 last 94.09)
 - open/close 1720 (time 1788852236.80 total 20.00 last 77.88)
 - open/close 2251 (time 1788852246.80 total 30.01 last 53.08)
 - open/close 2782 (time 1788852256.82 total 40.03 last 53.00)
 - open/close 3468 (time 1788852266.82 total 50.03 last 68.57)
 - open/close 4056 (time 1788852276.84 total 60.05 last 58.72)
 - open/close 4804 (time 1788852286.84 total 70.05 last 74.77)
 - open/close 5653 (time 1788852296.84 total 80.05 last 84.90)
 - open/close 6552 (time 1788852306.84 total 90.05 last 89.89)
 - open/close 7335 (time 1788852316.85 total 100.06 last 78.24)
total: 8000 open/close in 107.17 seconds: 74.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 180 seconds
lru_size = 400
400
 - unlinked 0 (time 1788852517 ; total 0 ; last 0)
total: 8000 unlinks in 125 seconds: 64.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 828 (time 1788852657.99 total 10.01 last 82.73)
 - open/close 1595 (time 1788852667.99 total 20.01 last 76.70)
 - open/close 2346 (time 1788852678.00 total 30.02 last 74.99)
 - open/close 2930 (time 1788852688.02 total 40.04 last 58.32)
 - open/close 3560 (time 1788852698.02 total 50.04 last 62.96)
 - open/close 4286 (time 1788852708.03 total 60.05 last 72.54)
 - open/close 5293 (time 1788852718.04 total 70.06 last 100.66)
 - open/close 6274 (time 1788852728.05 total 80.06 last 98.02)
 - open/close 7155 (time 1788852738.06 total 90.07 last 88.02)
 - open/close 7989 (time 1788852748.06 total 100.08 last 83.38)
total: 8000 open/close in 100.19 seconds: 79.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1788852865 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second