摘要
提出一种高速采集记录设备的实现方案。该方案以PDA14高速采集卡和SAS磁盘阵列为基础,采用多线程技术实现CPU资源的高效利用和采集数据的高速记录,利用两级缓存机制消除系统性能抖动,能够实现最高100MSPS的采样率和200MB/s的磁盘写入速度。
This paper describes the design and implementation of a high-speed sample-and-record device. Based on PDA14 waveform digitizer and SAS disk array, the device takes the advantage of multi-thread to full utilize the CPU resource and record the sampled data at high speed. The device also uses two-level cashes to absorb the performance jitters and can sample at 100MSPS and to write the sampled data to disk at 200MB/s.
出处
《计算机应用与软件》
CSCD
2009年第9期175-176,214,共3页
Computer Applications and Software
关键词
高速采集
SAS
FIFO
多线程
High-speed sample Serial attached SCSI （SAS） FIFO Multi-thread
