Original please indicate the source: https://www.cnblogs.com/agilestyle/p/11525044.html
Generally measures the performance of the network bandwidth, throughput, delay, PPS (Packet Per Second) were determined.
bandwidth
Bandwidth represents the maximum transmission rate of the link, the unit is usually b / s (bits / sec).
Throughput
Throughput, the amount of data successfully transmitted per unit time, usually expressed as b / s (bits / sec) or B / s (bytes / sec). Throughput is limited by bandwidth, the throughput / bandwidth utilization of the network is.
Delay
Delay represents a request issued from the network, until the distal end is received in response, the time delay required. In different scenarios, this indicator may have different meanings. For example, it may represent, connection time required (such as TCP handshake delay), or time (such as RTT) required for a packet to and from.
PPS
PPS, is an acronym for Packet Per Second (packets / second), expressed in units of packets to the network transmission rate. PPS is generally used to assess the forwarding capability of the network, such as the hardware switches, usually up linearly forward (i.e., PPS may be at or near the theoretical maximum). The Linux-based forwarding server, easily affected by the impact of network packet size.
In addition to these indicators, availability (whether normal communication network) network, the number of concurrent (TCP number of connection), packet loss rate (packet loss percentage), retransmission rate (ratio retransmission packet network) and the like are also commonly used performance indicators .