Checking is easy but expensive ( you have to make an extra call to SimpleDB, which is slow since it's a whole HTTP round trip plus the processing time on Amazon's side). 要进行检查也很简单,但是需要付出开销(您必须额外调用SimpleDB,而调用会很慢,因为需要完整的HTTP往返以及Amazon端的处理时间)。
When it loads your page, the Dojo JavaScript parser will go back to the server and pull down the Dojo components that it needs, thus increasing the round trip time between the server and the client. 加载页面时,DojoJavaScript分析器会返回到服务器并选择它需要的Dojo组件,从而增加了服务器和客户机之间的往返时间。
Effective cache mechanism can avoid round trip time to database, avoid calculations which occupying much time, save server resource, as well as improving the response time and waiting time. 利用有效的缓存机制,可以避免到数据库的网络往返时间,绕过占用很多资源的计算,并节省服务器资源,同时改善响应时间和等待时间。
This paper proposes a Round Trip Time ( RTT) estimation scheme of reliable multicast transport based on Active Networks. 针对可靠组播传输提出了一种基于主动式网络的往返行程时间(RountTripTime,简称RTT)估算策略。
TCP transmission experimental results also point out that the extra round trip time caused by OBS layer has great influence on the available TCP bandwidth. 光突发交换网络实验平台上的TCP传输实验还表明了OBS物理层带来的额外延时对上层TCP带宽有极大的影响。
Both the results of analysis and simulation show that the transfer mode of the burst has little impact on the performance of TCP short-lived flows when the burst loss rate is less than 0.01 and the ratio of assembly time to the round trip time is less than 0.1. 仿真验证了分析的正确性,结果表明,当突发丢失率小于0.01且突发组装时间与往返时间之比小于0.1时,突发传送方式对TCP短流的性能没有影响。
A passive round trip time ( RTT) estimate algorithm called PRE ( passive RTT estimate) is proposed for the traffic monitor devices to estimate RTT of TCP connections in the broadband network. 提出了一种应用于宽带网络环境的被动式环回时间(RTT)测量算法,用于对传输控制协议(TCP)的报文环回时间进行估计。
Design and Implementation of SYN-probe Detecting Host's State and Packet Round Trip Time SYN探测主机状态和分组时延的设计与实现
To avoid several ONUs transmit collision and realize the ONU's plug-and-play function, absolute timestamp was used in the round trip delay compensation design, thus calculation of the round trip time ( RTT) and ranging process can be easily done on timestamp bases. 为了避免多个ONU发送冲突,实现用户端设备的时延补偿和自动加入,本文采用绝对时标来补偿不同光网络单元(ONU)往返时间的差异,完成其往返时间的计算和动态测距。
This thesis uses the round trip time ( RTT) as performance parameter to investigate the performance anomaly detection technology on IP end-to-end network. 本文采用网络环路延时(RTT)作为性能指标,对IP端到端网络进行了性能异常检测技术研究。
This algorithm can get performance metrics such as the packet loss rate, round trip time, and latency variation according to the returned status of the measuring probe packets. 该算法通过测量探测数据包返回情况可以得到丢包率、双向延迟、延迟抖动等性能指标。
This paper presents two new mechanisms to improve the performance of wireless TCP, they are: the scheme of adjusting TCP's segment size based on retransmission ratio and the scheme of setting Round Trip Time ( RTT) threshold based on estimated throughput. 本文提出了两种无线TCP改进机制,即:基于重传率调整TCP段尺寸的机制和基于吞吐量估计设置往返时间(RTT)门限检测网络拥塞的机制。
Next, performance of TCP and UDP over i.i. d is investigated for different round trip time ( RTT) and maximum congestion control window ( Wmax). 在独立同分布信道条件下对TCP和UDP协议性能就不同的回传时延(RTT)第H页西南交通大学博士研究生学位论文和最大拥塞控制窗口(呱ax)参数进行了比较研究。
Round trip time estimation scheme in active reliable multicast transport 主动可靠组播传输往返行程时间估算策略
During congestion avoidance, the target of Vegas-AB algorithm, Vegas-AB algorithm is more radical and aggressive. Simulation results show that Vegas-AB algorithm is superior to Vegas and Vegas-A algorithms in throughput and round trip time. 仿真结果表明,在TCP吞吐量上,Vegas-AB算法优于Vegas算法和Vegas-A算法。
A method for RTT ( Round Trip Time) estimation using flatness parameter and markedness parameter by moving window average way ( FMMA) is used in the New-AVSP; New-AVSP采用基于波形平滑指数和波形突变指数的滑动窗口加权平均RTT估计算法(FMMA)对RTT值进行平滑估计;
Round trip time of a laser pulse from the emitter to the object is used in pulse laser ranging. Because of the high speed of light the key to improve the ranging precision is the timing precision improvement. 激光脉冲测距是通过测量激光束在待测距离上往返传播的时间来计算出距离的,由于光速极快,提高测距精度的关键就是计时精度。
The end-to-end TCP congestion controls cause the throughput of TCP connection inversely proportional to the connection round trip time ( RTT). TCP端到端的拥塞控制机制使得TCP连接获得的瓶颈带宽反比于RTT(数据包往返时间)。
SLR is a most high-accuracy tracking technology to artificial satellite flying in orbit, by measuring the round trip time of a laser pulse between satellite and observatory station. 卫星激光测距(SLR)是利用测量超短激光脉冲在卫星与地面测站间往返飞行时间的方法确定星地距离,对在轨卫星进行精密跟踪的一种技术。
The requirement of transmitting real-time video is also pointed as that the video frame sending-delays should be less than the results that play out buffer delays subtract half of the round trip time ( RTT). 指出实时视频传输具有可接受播放性能的条件:视频帧的发送延时应小于播放缓冲延时与网络往返延时一半的差值。
The scheme can operate under the environments of larger round trip time and variation of time delay. The response caused by the oscillation of available bandwidth is restrained fully. 该方案可在较大回路时延和时延抖动环境下稳定运行,由可用带宽波动引起的响应可被完全抑制,且不需要测量可用带宽信息。