HHVM (HipHop Virtual Machine) vs Visual Studio: What are the differences?
Developers describe HHVM (HipHop Virtual Machine) as "An open-source virtual machine designed for executing programs written in Hack and PHP". HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the flexibility that PHP developers are accustomed to. To date, HHVM (and its predecessor HPHPc before it) has realized over a 9x increase in web request throughput and over a 5x reduction in memory consumption for Facebook compared with the PHP 5.2 engine + APC. On the other hand, Visual Studio is detailed as "State-of-the-art tools and services that you can use to create great apps for devices, the cloud, and everything in between". Visual Studio is a suite of component-based software development tools and other technologies for building powerful, high-performance applications.
HHVM (HipHop Virtual Machine) belongs to "Virtual Machine" category of the tech stack, while Visual Studio can be primarily classified under "Integrated Development Environment".
"Very fast" is the primary reason why developers consider HHVM (HipHop Virtual Machine) over the competitors, whereas "Intellisense, ui" was stated as the key factor in picking Visual Studio.
HHVM (HipHop Virtual Machine) is an open source tool with 16.1K GitHub stars and 2.85K GitHub forks. Here's a link to HHVM (HipHop Virtual Machine)'s open source repository on GitHub.
Microsoft, Starbucks, and Intuit are some of the popular companies that use Visual Studio, whereas HHVM (HipHop Virtual Machine) is used by Facebook, Slack, and Wikipedia. Visual Studio has a broader approval, being mentioned in 678 company stacks & 1010 developers stacks; compared to HHVM (HipHop Virtual Machine), which is listed in 32 company stacks and 19 developer stacks.