ID |
原文 |
译文 |
51557 |
子层按顺序依次更新。 |
The sub-layers are then updated in sequence. |
51558 |
仿真结果与复杂度分析表明,文章所提译码结构资源消耗和复杂度更低; |
Simulation results and complexity analysis show that the proposed decoding structure consumes less resources and has lower complexity. |
51559 |
BD-NMS算法拥有更为优异的译码性能和收敛速度,在误码率为10-6时译码性能比密度演化最小和(DE-MS)算法提升了0. |
It can be seen that the BD-NMS algorithm has better decoding performance with faster convergence speed. The decoding performance is 0. 19 dB higher than that of Density Evolution Min-Sum(DE-MS) when the bit error rate is 10-6. |
51560 |
19 dB左右,增加的复杂度只包括比较运算,易于硬件实现。 |
It is also concluded that the increased complexity only includes comparison operation, which is easy to implement in hardware. |
51561 |
针对流媒体服务节点硬件成本高、流媒体服务器硬件能力未被充分发掘利用的问题,文章提出了优化流媒体服务器性能的软件方法。 |
Aiming at the problems of high hardware cost of streaming service node and insufficient development and utilization of streaming server hardware capability, we propose a software method to optimize the performance of streaming servers. |
51562 |
首先,基于性能测试分析的结果,流媒体服务器性能瓶颈在于硬盘组负载不均衡, |
Firstly, based on the results of performance testing and analysis, the performance bottleneck of streaming server is that the load of disk groups is unbalanced, |
51563 |
硬盘组的整体吞吐能力未被充分利用; |
and the overall throughput of disk groups is not fully utilized. |
51564 |
其次,分析了Linux文件系统输入/输出(I/O)访问模式, |
Secondly, the Input/Output(I/O) access method of the Linux file system is analyzed, |
51565 |
提出了直接I/O与异步I/O相结合,加速文件读取的方法; |
and a method combining direct I/O and asynchronous I/O is proposed to improve the file reading speed. |
51566 |
然后,针对流媒体文件的特点,提出了分片存储技术,以支持并发读取,均衡硬盘组的负荷; |
Thirdly, according to the characteristics of streaming media files, shard storage technology is proposed to support concurrent reading and balance the load of hard disk groups. |