Callgrind uses runtime instrumentation via the Valgrind framework for its cache simulation and call-graph generation. This way, even shared libraries and dynamically opened plugins can be profiled. The data files generated by Callgrind can be loaded into KCachegrind for browsing the performance results. But there is also a command line tool in the package to get ASCII reports from data files without the need to use KCachegrind. KCachegrind is able to visualize output of other profilers like OProfile, a system-wide profiler for Linux using statistical sampling with hardware performance counters. There also exist converters for profiling output of Python, PHP and PERL.

The data files generated by Callgrind can be loaded into KCachegrind for browsing the performance results. This is a GUI/Visualization tool.

KCachegrind

dotCMS is one of the fastest growing open source enterprise content management systems in the world. Twice recognized by Packt Publishing, and downloaded by tens of thousands of people, dotCMS is the choice for enterprise web CMS.dotCMS combines the best features of an enterprise CMS with eCommerce and CRM tools that help your organization communicate with your customers, clients and prospects. With its structured content engine, dotCMS allows you to build and manage the types of custom content that drive your site on the fly. Its feature set includes Content Authoring, WYSIWYG editor, Spell checker, Webdav support, Content versioning and rollback, Social networking, Blogs, RSS feeds, Content search, Sitemap generation, Multi-site Management, Multilingual Sites, Human readable web addresses, Velocity templating, DWR (Java AJAX framework), Plugin Architecture, Workflow and Permissioning, LDAP/ADS Integration, Email and mobile notification.

dotCMS is one of the fastest growing open source enterprise content management systems in the world.  Twice recognized by Packt Publishing, and downloaded by tens of thousands of people, dotCMS is the choice for enterprise web CMS.

dotCMS

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required. Its features include:
 <UL>
	<LI>Simple syntax </LI>
	<LI>Unlimited page revisions</LI>
	<LI>Recent changes and Colored side by side diff support </LI>
	<LI>Uploading and embedding of images and other media </LI>
	<LI>Customizable Interwiki links</LI>
	<LI>Section Editing allows editing of small parts of a page</LI>
	<LI>Easy navigation through breadcrumbs</LI>
	<LI>Automatic table of contents generation</LI>
	<LI>Access Control and Anti-Spam support</LI>
	<LI>Internationalization support</LI>
	<LI>Index-based fast fulltext search</LI>
	<LI>Pagecaching for quicker rendering</LI>
	<LI>Layout customizable through templates</LI>
	<LI>Plugin support</LI>
	<LI>RSS support</LI>
 </UL>

DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files – no database is required.

Dokuwiki - simple to use Wiki

Maatkit is a toolkit for users, developers, and administrators of open-source databases. Most of Maatkit’s functionality is designed for MySQL. It makes MySQL easier and safer to manage. Maatkit could be used to prove replication is working correctly, fix corrupted data, automate repetitive tasks, speed up your servers, and much more. Maatkit is now shipping by default with many GNU/Linux distributions such as Debian and CentOS. In addition to MySQL, there is support for PostgreSQL, Memcached, and a growing variety of other databases and technologies. Its feature include:
 <UL>
	<LI>Replication</LI>
	<LI>Data Archiving, Importing, and Exporting</LI>
	<LI>Log Analysis and Replay</LI>
	<LI>Analyzing Queries, Schema, and Settings</LI>
	<LI>Making Hard Things Easy</LI>
 </UL>

Maatkit is a toolkit for users, developers, and administrators of open-source databases. Most of Maatkit’s functionality is designed for MySQL. It makes MySQL easier and safer to manage. Maatkit could be used to prove replication is working correctly, fix corrupted data, automate repetitive tasks, speed up your servers, and much more.

Maatkit - Power tools for open-source databases

ScrewTurn Wiki allows you to create, manage and share wikis. A wiki is a collaboratively-edited, information-centered website: the most famous is Wikipedia. ScrewTurn Wiki can be extended and customized with plugins and themes. It can store data using a simple, built-in file-system provider or, if you need performance and scalability, it can use SQL Server. If you use Active Directory, you can integrate with that too.

ScrewTurn Wiki allows you to create, manage and share wikis. A wiki is a collaboratively-edited, information-centered website: the most famous is Wikipedia.

ScrewTurn Wiki - ASP.NET Wiki Software

Perst is McObject's open source, dual license, object-oriented embedded database system (ODBMS). Perst gives developers the ability to sort, store and retrieve objects in their applications with maximum speed and with low memory and storage overhead, while leveraging the object-oriented paradigm of Java and C#. It is available in one edition developed as an all-Java embedded database, and another implemented in C# (for Microsoft .NET Framework applications). Perst’s also include garbage collection, schema evolution, a “wrapper” that provides a SQL-like database interface (SubSQL), XML import/export, database replication, support for large databases, and more.

Perst is McObject's open source, dual license, object-oriented embedded database system (ODBMS). Perst gives developers the ability to sort, store and retrieve objects in their applications with maximum speed and with low memory and storage overhead, while leveraging the object-oriented paradigm of Java and C#. It is available in one edition developed as an all-Java embedded database, and another implemented in C# (for Microsoft .NET Framework applications).

Perst - object-oriented embedded database

Jumper 2.0 is a collaborative community search platform that revolutionizes search by crowdsourcing knowledge management powered by a shared bookmarking engine. It is easily and quickly deployed into a community of practice that benefits users with complex and specialized search requirements. Jumper delivers universal search of any databases, flat files, fileshares, content systems, web pages, blogs and wikis, even people - through one simple search box. Jumper 2.0 collaborative search is an open source, web-based platform written in PHP and Javascript. Jumper uses peer and social-networking principles to tag and link distributed information resources to create an interactive, user-submitted, recommendation engine that allows you to search any content, media, or data regardless of format or location. Like Wikipedia, Jumper allows users to become contributors and editors of the service by creating, editing, and managing tag profiles. Jumper allows users to tag any information resource with keywords just like Delicious. Jumper delivers a comment and rating system that is similar to Amazon.

Jumper 2.0 is a collaborative community search platform that revolutionizes search by crowdsourcing knowledge management powered by a shared bookmarking engine. It is easily and quickly deployed into a community of practice that benefits users with complex and specialized search requirements. Jumper delivers universal search of any databases, flat files, fileshares, content systems, web pages, blogs and wikis, even people - through one simple search box.

Jumper - Collaborative search engine in PHP

Kdenlive is a video editor, which supports DV, AVCHD (experimental support) and HDV editing. Kdenlive relies on several other open source projects, such as FFmpeg and MLT video framework. It is designed to answer all needs, from basic video editing to semi-professionnal work. Kdenlive can read, edit and export Flash video. Kdenlive supports most audio formats for reading, mixing and exporting. It also offers experimental support for non-destructive audio and video codec. Its features include: <ul>
<li>Multitrack edition with a timeline and unlimited number of video and audio tracks.</li>
<li>Video and audio tracks organized in layers.&nbsp;</li>
<li>Tools to create, move, crop and delete video clips, audio clips, text clips and image clips.</li>
<li>Configurable keyboard shortcuts and interface layouts.</li>
<li>A wide range of effects and transitions.&nbsp;Ability to add custome effects and transitions.</li>
<li>Non-blocking rendering using a rendering separate application. Stop, pause and restart rendering. Continue to work on your project without any possible loss of data.</li>
<li>Export to standard formats: DV, MPEG2 etc</li>
</ul> Kdenlive offers rich set of creative effects such as Simplyfing image colors, Adjusting image brightness, Emboss effect, Greyscale, Distort image, color equalizer, Glow effect, Remove colors, Invert colors, Image hue, Mirror image etc. Supported formats: DV, HDV, AVCHD, Tapeless formats support like mpeg, avi, mp4 and mov, Audio formats like: Uncompressed PCM, ac3, mp2, mp3, vorbis, wav, Flash support, Image formats like: gif, png, jpeg, xcf (Gimp format), exr, tiff, svg etc.

Kdenlive is a video editor, which supports DV, AVCHD (experimental support) and HDV editing. Kdenlive relies on several other open source projects, such as FFmpeg and MLT video framework. It is designed to answer all needs, from basic video editing to semi-professionnal work. Kdenlive can read, edit and export Flash video. Kdenlive supports most audio formats for reading, mixing and exporting. It also offers experimental support for non-destructive audio and video codec.

kdenlive - Powerful multi-track video editor

ChiliProject is a web based project management system. It supports your team throughout the complete project life cycle, from setting up and discussing a project plan, over tracking issues and reporting work progress to collaboratively sharing knowledge.

 It helps to do project planning by setting up the roadmap and prepare project plan using Gantt chart. It could track the issues basically action items and reports it progress. Each issue / action item could be tracked, discussed and monitored. Worfklow could be created using trackers, so that issues / action item can follow a specific work flow. 
 
 Collaboration is a must for project management tool. ChilliProject provides Wiki to collaborate, share information, documents with other team members. It helps to integrate the code repository like Subversion, Git and browse the code. Additional to that it has Forum support, feed support to publish project news. 

 ChilliProject is a fork of <A HREF="http://www.redmine.org/" target="_blank">Redmine</A>. A group of developers from the Redmine community not interested with the way its been maintained and thought to fork it to continue the stable development of the project. Authors have explained the <A HREF="https://www.chiliproject.org/projects/chiliproject/wiki/Why_Fork" target="_blank">reason to fork</A>.

ChiliProject is a web based project management system. It supports your team throughout the complete project life cycle, from setting up and discussing a project plan, over tracking issues and reporting work progress to collaboratively sharing knowledge.

ChiliProject - A redmine fork

HeidiSQL is a lightweight, fast and flexible interface to the popular MySQL-Database. It allows you to browse and edit your databases, tables, views, stored routines and triggers from an intuitive Windows interface. 

 It synchronizes tables between two databases. It helps to write queries with customizable syntax-highlighting and code-completion. It exports table-data as CSV, HTML, XML and SQL. It provides support to search specific text in all tables of all databases of one server. It connects to multiple servers in one window and also connects to server via command line. Source location: <A HREF="http://code.google.com/p/heidisql/" target"_blank">http://code.google.com/p/heidisql/</A>
 <img src="/AppImages/Article/heldisql-img1.png" alt="" class="float-center">

HeidiSQL is a lightweight, fast and flexible interface to the popular MySQL-Database. It allows you to browse and edit your databases, tables, views, stored routines and triggers from an intuitive Windows interface.

HeidiSQL - A lightweight interface to MySQL

Vanilla is a powerful community publishing platform, and it comes with a great set of features. It has add-ons to embed your vanilla forums in to any of the site with single line of code. User will be allowed to login with their Facebook, Twitter, Google and OpenID account. 
	
Vanilla has all functionality of a Forum software. It supports Managing users and roles, Spam detection, Talk to your community by writing messages. Messages can appear anywhere in the application, and can be used to inform your users of news and events. 

 <img src="/AppImages/Article/vanilla-img1.jpg" alt="" class="float-center">

Vanilla is a powerful community publishing platform, and it comes with a great set of features. It has add-ons to embed your vanilla forums in to any of the site with single line of code. User will be allowed to login with their Facebook, Twitter, Google and OpenID account.

Vanilla forums - customizable discussion forum with mobile support

collectd is a daemon which collects system performance statistics periodically and provides mechanisms to store the values in a RRD files. It comes with more than 90 <A HREF="http://collectd.org/wiki/index.php/Table_of_Plugins" target="_blank">Plug-ins</A>, which helps to process, store and present the data in the way we want. 

 collectd utilizes a data push model. The data is collected and sent (pushed) to a multicast group or server. Thus there is no central instance which queries any values. collectd is able to handle any number of hosts, from one to several hundred.

collectd is a daemon which collects system performance statistics periodically and provides mechanisms to store the values in a RRD files. It comes with more than 90 Plug-ins, which helps to process, store and present the data in the way we want.

collectd – The system statistics collection daemon

Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies like FastCGI, SCGI, PHP, CGI, uWSGI, SSI, TLS and SSL encrypted connections, Virtual hosts, Authentication, on the fly encoding, Load Balancing, Apache compatible log files, Data Base Balancing, Reverse HTTP Proxy, Traffic Shaper, Video Streaming and much more. It is capable to run web applications built on PHP, Ruby on Rails, ColdFusion, GlassFish, Django, Java, ASP.NET and other web frameworks.

Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies like FastCGI, SCGI, PHP, CGI, uWSGI, SSI, TLS and SSL encrypted connections, Virtual hosts, Authentication, on the fly encoding, Load Balancing, Apache compatible log files, Data Base Balancing, Reverse HTTP Proxy, Traffic Shaper, Video Streaming and much more.

Cherokee - Fastest Web Server

Linphone is an internet phone or Voice Over IP phone (VoIP), it helps to communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone is available for Linux, Windows, MacOSX, and for mobile phones: Android, iPhone, Blackberry. It is using SIP protocol and it is compatible with any voip operator using SIP for its network. It provides Liblinphone, a powerful SIP VoIP video SDK that anyone can use to add audio or video call capabilities to an application. It supports IPv6, Webcam, Addressbook and lot more. 
 <img src="/AppImages/Article/linphone-img1.jpg" alt="" class="float-center">

Linphone is an internet phone or Voice Over IP phone (VoIP), it helps to communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone is available for Linux, Windows, MacOSX, and for mobile phones: Android, iPhone, Blackberry. It is using SIP protocol and it is compatible with any voip operator using SIP for its network.

Linphone - Video SIP phone for Desktop and Mobile

Dulwich is a pure-Python implementation of the Git file formats and protocols. It provides an interface to Git repository (both local and remote) that doesn't call out to git directly but instead uses pure Python. 
 Main web site: <A HREF="http://www.samba.org/~jelmer/dulwich/" target="_blank">http://www.samba.org/~jelmer/dulwich/</A>

Dulwich is a pure-Python implementation of the Git file formats and protocols. It provides an interface to Git repository (both local and remote) that doesn't call out to git directly but instead uses pure Python.

Dulwich - Pure-Python Git implementation

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