PsPing v1.0

Introduction

PsPing is a command-line utility for measuring network performance. In addition to standard ICMP ping functionality, it can report the latency of connecting to TCP ports, the latency of TCP round-trip communication between systems, and the TCP bandwidth available to a connection between systems. Besides obtaining min, max, and average values in 0.01ms resolution, you can also use PsPing to generate histograms of the results that are easy to import into spreadsheets.

Installation

Copy PsPing onto your executable path. Typing "psping" displays its usage syntax.

Using PsPing

PsPing implements Ping functionality, TCP ping, latency and bandwidth measurement. Use the following command-line options to show the usage for each test type:

Usage: psping -? [i|t|l|b]

ICMP ping usage: psping [[-6]|[-4]] [-h [buckets]] [-i <interval>] [-l <requestsize> [-q] [-t|-n <count>] [-w <count>] <destination>

For high-speed ping tests use -q and -i 0.

TCP ping usage: psping [[-6]|[-4]] [-h [buckets]] [-i <interval>] [-l <requestsize> [-q] [-t|-n <count>] [-w <count>] <destination:destport>

For high-speed ping tests use -q and -i 0.

TCP latency usage:

server: psping [[-6]|[-4]] <-s source:sourceport>

client: psping [[-6]|[-4]] [-h [buckets]] [-r] <-l requestsize>] <-n count> [-w <count>] <destination:destport>

The server can serve both latency and bandwidth tests and remains active until you terminate it with Control-C.

TCP bandwidth usage:

server: psping [[-6]|[-4]] <-s source:sourceport>

client: psping [[-6]|[-4]] -b [-h [buckets]] [-r] <-l requestsize> <-n count> [-i <outstanding>] [-w <count>] <destination:destport>

The server can serve both latency and bandwidth tests and remains active until you terminate it with Control-C.

Examples

This command executes an ICMP ping test for 10 iterations with 3 warmup iterations:

psping -n 10 -w 3 marklap

To execute a TCP connect test, specify the port number. The following command executes connect attempts against the target as quickly as possible, only printing a summary when finished with the 100 iterations and 1 warmup iteration:

psping -n 100 -i 0 -q marklap:80

To configure a server for latency and bandwidth tests, simply specify the -s option and the source address and port the server will bind to:

psping -s 192.168.2.2:5000

A buffer size is required to perform a TCP latency test. This example measures the round trip latency of sending an 8KB packet to the target server, printing a histogram with 100 buckets when completed:

psping -l 8192 -n 10000 -h 100 192.168.2.2:5000

This is the same command except with a -b option, which executed against the same server performs a bandwidth test. Note that the test must run for at least one second after warmup for a histogram to generate:

psping -b -l 8192 -n 10000 -h 100 192.168.2.2:5000

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