PingTool is a packet generating tool I developed in the 1990's when I work for a communication equipment manufacturer and we needed a way to generate a high stream of packets in a well-known pattern.

Pingtool allows you to set the protocol, including way more than ICMP. It also may be used in pairs as a sender / receiver connection using TCP or UDP. You can set packet sizes, frequency, and delays.

Read more: PingTool: A packet throwing tool on steroids

ATM is a tool designed to allow you to better explore how the operating system uses the System File Cache, Standby Lists, and Memory Compression on your system. In addition to some monitoring functions, on newer OSs you may also modify your system cache behavior.

More importantly, on Vista, Windows 7, Windows 8, 8.1, and 10 (and server builds), this tool allows you to investigate:

• The system file cache
• Prioritized standby memory lists
• "Superfetch"
• Page File Activity
• Compressed Memory (Windows 10 Threshold and above)

Read more: ATM: The Cache Machine

TMnetsim is used to simulate a wide-area network for a single protocol.  It is used to create test situations that simulate real-world situations in a reproducible way.  TMnetsim works with TCP based socket protocols.  TMnetsim may be deployed on any PC with a Microsoft OS:

• A stand-alone PC
• the Client PC
• the Server PC

TMnetsim is primarily used to simulate network delay, however, in some (rare) cases it may be used to simulate packet loss or out-of-order delivery, as well as packet capture.  Settings to control delivery delay and loss may be set on a global basis or per conversation basis.  These parameters may also be set in a per-direction basis.  A monitor allows you to view current conversations, and you may select specific instances to modify parameters for that connection on-the-fly.

TMnetsim works with most all TCP socket based protocols, including FTP, RDP, and ICA.  To work with any arbitrary protocol all you need to know is the TCP Socket that the server listens to.  Loss and out-of-order delivery will cause most TCP protocols to fail, so it should be used with caution.  Only when the application protocol provides additional flow control or sequencing at a higher layer is use of Loss and OutOfOrder possible.

Note: The MSIX release of TMNetSim is the exact same binary verion of the product released in a MSIX package for Windows 10 (1809 and above) and Windows Server 2019.

Read more: TMNetSim: Quick and Easy Network Simulation Tool

This tool was written to investigate how the Windows Cache Manager and Disk I/O subsystems precache file data leading to improved performance when file I/O patterns are sequential. It is also useful as a test tool to produce reliable, known, file read patterns.

Read more: Sequential Read