PHP Profiler Class performs code profiling and aids performance optimisation by locating the areas of code that consume most processing time. The reports it produces provide information on the number of calls to a code section, as well as the percentage and total of time spent on a section. Timing of multiple nested code sections is possible. It requires function calls to be manually inserted in the code being profiled.
PTT helps users to analyze and understand correction and performance problems for multi-threaded applications. It shows when a program calls NPTL routines and when it exits from them, with details about the internal mechanisms of the library. It is a post mortem analysis; the trace can be analyzed once the application has stopped. Three different trace formats are provided: a machine readable text format, a human readable text format, and a graphical format. The graphical format is obtained thanks to Pajé, an interactive visualization tool.
Performance Co-Pilot (PCP) is a framework and set of services for supporting system-level performance monitoring and performance management. It provides a unifying abstraction for all of the interesting performance data in a system, and allows client applications to easily retrieve and process any subset of that data using a single API. A client-server architecture allows multiple clients to monitor the same host, and a single client to monitor multiple hosts. Archive logging and replay are integrated so that a client application can use the same API to process real-time data from a host or historical data from an archive.
pv (Pipe Viewer) is a terminal-based tool for monitoring the progress of data through a pipeline. It can be inserted into any normal pipeline between two processes to give a visual indication of how quickly data is passing through, how long it has taken, how near to completion it is, and an estimate of how long it will be until completion.
PootyPedia is a tool to track which hardware is in use by a software project. PootyPedia consists of a client program which finds the hardware and prepares it for reporting and a server program which tracks all the reports and keeps them organized in a database and generates reports from them.
This suite currently consists of three programs, Postal, Rabid, and BHM. Postal (the mad postman) is a program that will deliver mail as fast as possible via the SMTP protocol to test mail server performance. Rabid (the mad Biff) will eat mail via the POP protocol as fast as possible and measure POP server performance. BHM is the Black Hole Mailer to discard SMTP mail. All messages sent via Postal have MD5 checksums appended, and Rabid will check the MD5 to ensure that the messages are not being corrupted.
PureLoad is a load testing tool that simulates thousands of users executing requests against server based applications. It can be used to verify that your application will meet the expected performance criteria. PureLoad reports quality and performance problems, as well as detailed statistics gathered during a load test. PureLoad also includes extensive support for easy recording and testing of Web-based applications. The HTTP Recorder ease the process of capturing HTTP and HTTPS requests into PureLoad scenarios. The Web Crawler is used to scan a static Web site for general errors, and it can also be used to generate PureLoad scenarios to be used in a load test.