我一直在测试pbrpc框架（sofa-pbrpc）的性能（qps）。
当我使用cpu0处理软件中断时，qps为100w +。
top命令
top - 18:00:54 up 158 days, 18 min, 3 users, load average: 18.09, 19.29, 18.74
Tasks: 793 total, 3 running, 790 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.0% us, 0.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi, 100.0% si
Cpu1 : 58.7% us, 11.6% sy, 0.7% ni, 28.4% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu2 : 68.0% us, 11.6% sy, 0.0% ni, 19.8% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu3 : 52.3% us, 8.3% sy, 0.0% ni, 39.1% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu4 : 73.5% us, 11.9% sy, 0.0% ni, 13.9% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu5 : 52.5% us, 10.2% sy, 0.3% ni, 36.6% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu6 : 72.4% us, 13.2% sy, 0.0% ni, 13.2% id, 1.3% wa, 0.0% hi, 0.0% si
Cpu7 : 74.7% us, 11.8% sy, 0.0% ni, 12.5% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu8 : 72.5% us, 12.8% sy, 0.0% ni, 14.1% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu9 : 82.9% us, 13.5% sy, 0.0% ni, 3.0% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu10 : 82.1% us, 14.6% sy, 0.0% ni, 3.0% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu11 : 85.9% us, 13.2% sy, 0.0% ni, 0.7% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu12 : 84.2% us, 14.5% sy, 0.0% ni, 0.0% id, 1.3% wa, 0.0% hi, 0.0% si
Cpu13 : 67.4% us, 12.2% sy, 0.0% ni, 19.7% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu14 : 72.6% us, 13.5% sy, 0.0% ni, 13.2% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu15 : 77.4% us, 12.8% sy, 0.0% ni, 8.9% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu16 : 84.5% us, 14.5% sy, 0.0% ni, 0.3% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu17 : 84.1% us, 14.2% sy, 0.0% ni, 1.0% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu18 : 84.1% us, 13.6% sy, 0.0% ni, 2.0% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu19 : 83.2% us, 14.2% sy, 0.0% ni, 1.7% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu20 : 28.7% us, 4.3% sy, 0.0% ni, 63.7% id, 3.3% wa, 0.0% hi, 0.0% si
Cpu21 : 83.2% us, 13.9% sy, 0.0% ni, 2.3% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu22 : 1.0% us, 2.3% sy, 0.3% ni, 96.4% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu23 : 0.3% us, 0.3% sy, 0.3% ni, 99.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu24 : 84.8% us, 13.2% sy, 0.0% ni, 1.0% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu25 : 84.8% us, 14.6% sy, 0.0% ni, 0.0% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu26 : 84.8% us, 14.5% sy, 0.0% ni, 0.0% id, 0.7% wa, 0.0% hi, 0.0% si
Cpu27 : 83.4% us, 14.9% sy, 0.0% ni, 0.7% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu28 : 83.9% us, 14.8% sy, 0.0% ni, 0.3% id, 1.0% wa, 0.0% hi, 0.0% si
Cpu29 : 23.1% us, 3.6% sy, 0.0% ni, 72.9% id, 0.3% wa, 0.0% hi, 0.0% si
Cpu30 : 2.0% us, 0.7% sy, 0.3% ni, 97.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu31 : 3.9% us, 1.3% sy, 0.0% ni, 94.7% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 132133912k total, 4835356k used, 127298556k free, 153412k buffers
然而，使用set_irq_affinity.sh，qps降级为70w +。
top命令
top - 18:05:38 up 158 days, 22 min, 3 users, load average: 13.13, 18.03, 18.51
Tasks: 801 total, 2 running, 798 sleeping, 1 stopped, 0 zombie
Cpu0 : 62.2% us, 13.2% sy, 0.0% ni, 4.6% id, 0.7% wa, 0.0% hi, 19.4% si
Cpu1 : 55.8% us, 10.9% sy, 0.3% ni, 15.5% id, 0.0% wa, 0.0% hi, 17.5% si
Cpu2 : 59.5% us, 12.5% sy, 0.0% ni, 12.8% id, 0.3% wa, 0.0% hi, 14.8% si
Cpu3 : 33.7% us, 9.6% sy, 0.0% ni, 47.9% id, 0.3% wa, 0.0% hi, 8.6% si
Cpu4 : 59.1% us, 12.2% sy, 0.0% ni, 11.2% id, 0.7% wa, 0.0% hi, 16.8% si
Cpu5 : 51.0% us, 10.5% sy, 0.0% ni, 27.0% id, 0.3% wa, 0.0% hi, 11.2% si
Cpu6 : 66.9% us, 12.8% sy, 0.0% ni, 3.6% id, 0.7% wa, 0.0% hi, 16.1% si
Cpu7 : 64.8% us, 12.8% sy, 0.0% ni, 3.0% id, 0.3% wa, 0.0% hi, 19.1% si
Cpu8 : 48.0% us, 9.2% sy, 0.3% ni, 32.2% id, 0.3% wa, 0.0% hi, 9.9% si
Cpu9 : 50.0% us, 10.3% sy, 0.0% ni, 25.2% id, 0.3% wa, 0.0% hi, 14.2% si
Cpu10 : 63.0% us, 11.9% sy, 0.0% ni, 7.9% id, 0.3% wa, 0.0% hi, 16.8% si
Cpu11 : 60.9% us, 12.8% sy, 0.0% ni, 8.9% id, 0.3% wa, 0.0% hi, 17.1% si
Cpu12 : 62.6% us, 12.6% sy, 0.0% ni, 3.6% id, 0.3% wa, 0.0% hi, 20.9% si
Cpu13 : 56.2% us, 11.8% sy, 0.0% ni, 19.1% id, 0.3% wa, 0.0% hi, 12.5% si
Cpu14 : 64.0% us, 13.2% sy, 0.0% ni, 6.9% id, 0.3% wa, 0.0% hi, 15.5% si
Cpu15 : 65.0% us, 14.5% sy, 0.0% ni, 3.3% id, 0.7% wa, 0.0% hi, 16.5% si
Cpu16 : 65.8% us, 12.5% sy, 0.0% ni, 1.6% id, 0.3% wa, 0.0% hi, 19.7% si
Cpu17 : 63.2% us, 12.9% sy, 0.0% ni, 2.6% id, 0.3% wa, 0.0% hi, 20.9% si
Cpu18 : 15.2% us, 4.0% sy, 0.0% ni, 77.6% id, 0.0% wa, 0.0% hi, 3.3% si
Cpu19 : 58.4% us, 12.2% sy, 0.0% ni, 12.9% id, 0.3% wa, 0.0% hi, 16.2% si
Cpu20 : 48.8% us, 10.2% sy, 0.0% ni, 27.4% id, 0.3% wa, 0.0% hi, 13.2% si
Cpu21 : 31.6% us, 5.9% sy, 0.0% ni, 54.3% id, 0.3% wa, 0.0% hi, 7.9% si
Cpu22 : 0.7% us, 1.3% sy, 0.0% ni, 98.0% id, 0.0% wa, 0.0% hi, 0.0% si
Cpu23 : 64.8% us, 12.8% sy, 0.0% ni, 1.6% id, 0.7% wa, 0.0% hi, 20.1% si
Cpu24 : 64.8% us, 12.2% sy, 0.0% ni, 5.3% id, 0.7% wa, 0.0% hi, 17.1% si
Cpu25 : 59.5% us, 14.1% sy, 0.0% ni, 8.9% id, 0.3% wa, 0.0% hi, 17.1% si
Cpu26 : 63.7% us, 13.5% sy, 0.0% ni, 3.0% id, 0.0% wa, 0.0% hi, 19.8% si
Cpu27 : 60.7% us, 12.2% sy, 0.0% ni, 9.2% id, 0.3% wa, 0.0% hi, 17.5% si
Cpu28 : 62.2% us, 13.5% sy, 0.0% ni, 1.3% id, 0.3% wa, 0.0% hi, 22.7% si
Cpu29 : 12.5% us, 4.6% sy, 0.3% ni, 79.2% id, 0.0% wa, 0.0% hi, 3.3% si
Cpu30 : 2.3% us, 2.0% sy, 1.3% ni, 94.1% id, 0.0% wa, 0.0% hi, 0.3% si
Cpu31 : 3.3% us, 1.7% sy, 0.0% ni, 94.7% id, 0.0% wa, 0.0% hi, 0.3% si
Mem: 132133912k total, 4888040k used, 127245872k free, 153440k buffers
在boost asio中是否有一些特殊处理？