Archives

Archives / 2009 / September

  • Migrating FastCGI configuration from IIS 5.1/6.0 to IIS 7.0/7.5

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    Problem
    As you know FastCGI functionality on IIS 5.1 and IIS 6.0 is provided by FastCGI ISAPI extension which is available as an independent download. On IIS 7.0 and beyond, FastCGI functionality is provided by IIS FastCGI module which comes with the operating system. These components use different configuration stores to store the settings that affect their behavior. FastCGI ISAPI uses an INI file named fcgiext.ini as its configuration store whereas FastCGI module keeps configuration in applicationHost.config in xml format with rest of IIS configuration. Before, migrating from IIS6 to IIS7 involved migrating fcgiext.ini configuration to FastCGI module manually as there was no automated way to do that. MSDeploy only had functionality to migrate metabase configuration but because FastCGI ISAPI configuration is kept separately in an INI file, that wasn’t possible. Read more ...

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  • How WinCache make PHP run faster

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    Why WinCache?
    Use of PHP accelerators is very common to make PHP run faster. Most of the existing PHP accelerators which are in use today are designed keeping *nix architecture in mind and mostly doesn’t work well on Windows. For example, APC which is very commonly used on *nix doesn’t work on Windows. Xcache does work in ISAPI mode but crashes when PHP is running in FastCGI mode with multiple php processes alive. Absence of a stable PHP accelerator on Windows made people complain about PHP performance on Windows all the time. Another complaint which we heard consistently from customers running PHP on windows was that file operations on Windows were slower than on *nix. Reason being Windows’s CreateFile system call which is much more expensive than a fopen call on *nix as CreateFile goes through a much more complex security check involving ACLs. Read more ...

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