== sanity test 124b: lru resize (performance test) ================================================================================= 20:48:49 (1788223729)
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 783 (time 1788223742.89 total 10.00 last 78.26)
 - open/close 1715 (time 1788223752.89 total 20.01 last 93.15)
 - open/close 2519 (time 1788223762.89 total 30.01 last 80.40)
 - open/close 3370 (time 1788223772.92 total 40.03 last 84.89)
 - open/close 4227 (time 1788223782.93 total 50.05 last 85.60)
 - open/close 5046 (time 1788223792.94 total 60.05 last 81.84)
 - open/close 5904 (time 1788223802.94 total 70.06 last 85.73)
 - open/close 6719 (time 1788223812.95 total 80.07 last 81.45)
 - open/close 7526 (time 1788223822.96 total 90.08 last 80.60)
total: 8000 open/close in 95.15 seconds: 84.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1788223979 ; total 0 ; last 0)
total: 8000 unlinks in 101 seconds: 79.207924 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 820 (time 1788224095.00 total 10.01 last 81.91)
 - open/close 1691 (time 1788224105.00 total 20.01 last 87.08)
 - open/close 2560 (time 1788224115.01 total 30.02 last 86.83)
 - open/close 3402 (time 1788224125.01 total 40.03 last 84.16)
 - open/close 4215 (time 1788224135.02 total 50.03 last 81.23)
 - open/close 5106 (time 1788224145.04 total 60.05 last 88.93)
 - open/close 6053 (time 1788224155.04 total 70.06 last 94.67)
 - open/close 6887 (time 1788224165.05 total 80.06 last 83.35)
 - open/close 7557 (time 1788224175.06 total 90.07 last 66.94)
total: 8000 open/close in 95.85 seconds: 83.46 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1788224290 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second