October 2013
Intermediate to advanced
784 pages
21h 7m
English
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10. Network
As systems become more distributed, especially with cloud computing environments, the network plays a bigger role in performance. Apart from improving network latency and throughput, another common task is to eliminate latency outliers, which can be caused by dropped packets.
Network analysis spans hardware and software. The hardware is the physical network, which includes the network interface cards, switches, routers, and gateways (these typically have software too). The system software is the kernel protocol stack, typically TCP/IP, and the behavior of each protocol involved.
The network is often blamed for poor performance, given the potential for congestion. This chapter will show how to figure out what is really happening, which ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.