Free system performance monitor software for windows

Interbase Performance Monitor allows profile and watch database operations. It contains following modules:
Performance Monitoring
Displays connected users
Displays CPU usage of host system
Memory usage of watched database
Number of writes and read to database and to buffer cache
Local SQL Monitor and Event Log
Here are displayed internal events (e.g. lost connection and recovery actions) and all statements run on local host by applications written using FIBPlus.
Server Log
This module can view server log file.
Database Statistics
Here you can enumerate database statistics.

Webperform Monitoring 2.2 is reliable solution for you to see up to the moment stats on how your Website is performing from across the globe . Webperform Monitoring is a useful tool that enables you to monitor your website from wherever you are. Webperform is a permanently free website performance monitoring service brought to you by Gomez, Inc. This on-demand service lets you monitor your Web application performance from an external perspective 24 x 7 x 365.

Paris Performance is a cool CPU performance monitor with the same interface as the Ensoniq Paris Paris Performance is a cool CPU performance monitor with the same interface as the Ensoniq Paris.
Paris Performance (PP) is a CPU performance meter, designed with the same GUI (graphical user interface) as the Ensoniq PARIS Digital Audio Workstation.
PP was developed due to the fact that the PARIS system can not be monitored by normal Windows CPU performance tracking utilities, due to fast video refresh rate; PP uses a special technique of getting a system performance bassline, and then extrapolating the utilization. While not quite as accurate as PPs normal mode, this DOES work in conjunction with the PARIS.

System Cleaner improves your system performance by eradicating space-hogging obsolete files and files that may endanger your privacy. It scans your disks quickly and then displays the garbage files so you can decide which of them you want removed. With System Cleaner you can remove all traces of your online and offline activities.
System Cleaner removes all of your computer and internet activity files and removes every last trace of where you have been and what you did while you were there. System Cleaner removes traces from Windows system areas including the Recycle Bin, the Clipboard, temp folders, and the Recent Documents list. With System Cleaner you can clean the tracks of many popular applications. Protect your privacy by cleaning up your browsers cache, cookies, history, typed URLs, index.dat, autocomplete.
Every day the programs on your computer create temporary and garbage files and leave them behind on your hard disk. These files takes valuable hard disk space and slowing your system down. System Cleaner enables you to clean up your whole system, giving you back valuable disk space, fixing registry errors and problems and protecting your privacy all with a few simple mouse-clicks.