== sanity test 124b: lru resize (performance test) ================================================================================= 09:22:39 (1787750559)
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 715 (time 1787750574.66 total 10.01 last 71.46)
 - open/close 1500 (time 1787750584.67 total 20.01 last 78.45)
 - open/close 2252 (time 1787750594.68 total 30.02 last 75.11)
 - open/close 3005 (time 1787750604.69 total 40.03 last 75.24)
 - open/close 3720 (time 1787750614.69 total 50.03 last 71.48)
 - open/close 4465 (time 1787750624.69 total 60.04 last 74.47)
 - open/close 5166 (time 1787750634.69 total 70.04 last 70.09)
 - open/close 5815 (time 1787750644.70 total 80.04 last 64.88)
 - open/close 6412 (time 1787750654.70 total 90.05 last 59.68)
 - open/close 7111 (time 1787750664.71 total 100.05 last 69.86)
 - open/close 7895 (time 1787750674.72 total 110.07 last 78.28)
total: 8000 open/close in 111.45 seconds: 71.78 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 163 seconds
lru_size = 400
400
 - unlinked 0 (time 1787750850 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 586 (time 1787750975.25 total 10.00 last 58.59)
 - open/close 1208 (time 1787750985.27 total 20.02 last 62.11)
 - open/close 1887 (time 1787750995.27 total 30.02 last 67.87)
 - open/close 2652 (time 1787751005.28 total 40.03 last 76.43)
 - open/close 3462 (time 1787751015.29 total 50.04 last 80.90)
 - open/close 4177 (time 1787751025.29 total 60.04 last 71.49)
 - open/close 4968 (time 1787751035.30 total 70.05 last 79.03)
 - open/close 5718 (time 1787751045.31 total 80.06 last 74.96)
 - open/close 6327 (time 1787751055.31 total 90.06 last 60.88)
 - open/close 6925 (time 1787751065.31 total 100.06 last 59.79)
 - open/close 7550 (time 1787751075.32 total 110.07 last 62.47)
total: 8000 open/close in 118.08 seconds: 67.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1787751196 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second