Archive for the 'WinCache' tag

WinCache Extension 1.0.1 – Servicing Release

The new release of WinCache Extension for PHP - version 1.0.1 – is available for download. This is a servicing release that has fixes for bugs reported in v1.0. In particular the following fixes and changes have been made in this release:

  • Fixed require_once on PHP5.3. If the files were absolute and similar files were included in different case, require_once was including it twice.
  • Changed relative path cache to act as resolve path cache. Incremented refcounts under aplist lock. Did comparison using InterlockedCompareExchange.
  • Fixed crashes which were happening because aplist refcount and opcode cache refcount can get out of sync due to local cache.
  • Exposed is_local_cache property from ocache_fileinfo and fcache_fileinfo. Stats page will use this to indicate when local opcode data is shown.
  • Updated the wincache.php to pass chart data on query string to ensure that the charts show the same data that is displayed in tables
  • Updated the wincache.php to show whether information about a global or local cache instance is being displayed
  • Changed variable names and comments to indicate rplist is resolve path cache and not just relative path cache
  • Changed wincache.php to use resolve_path instead of relative_path

The new release is available for download from the extension’s home page at: The source code for the extension is available on PHP PECL page here: The documenation for the extension can be found at

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ruslany on January 26th 2010 in PHP


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WinCache Extension 1.0 for PHP – Release to Web

The Windows Cache Extension 1.0 for PHP – RTW is available for download. This is a final, production-ready release that is provided under an open source BSD license with the source code hosted and maintained on

Install the Windows Cache Extension 1.0 for PHP – RTW

To install the Windows Cache Extension for PHP 5.2 and PHP 5.3, use the download links at the extension’s home page at

The installation with Web Platform Installer is the easiest as it will automatically place the extension binary into proper location and will update the PHP configuration to enable the extension. Also, if you have the beta or RC release of the extension installed, then Web PI will upgrade it. If you install any PHP application by using Web PI then the Windows Cache Extension for PHP will be offered as an optional component. Continue Reading »


ruslany on November 19th 2009 in PHP


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ruslany on October 19th 2009 in PHP


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Windows Cache Extension for PHP and CPU usage

The FastCGI module in IIS has a configuration setting maxInstances, which controls the number of concurrently running php-cgi.exe processes that IIS creates to process PHP requests. To achieve optimal performance, it is recommended to fine tune this setting for your specific environment starting with 8-10 instances per CPU core (e.g. maxInstances=32 for quad-core CPU).

The Windows Cache Extension for PHP can be used to improve performance of PHP applications running on Windows operating systems. The extension caches the compiled PHP opcode in the shared memory, which helps to avoid re-doing of such CPU intensive operations as parsing and compiling of the PHP source code. This means that when Windows Cache Extension for PHP is enabled, less CPU cycles are required for a web server to process PHP requests. Because of that, the previously configured value for the FastCGI maxInstances setting may not be adequate to load the server’s CPU completely and it may be necessary to increase the value further. Continue Reading »


ruslany on September 2nd 2009 in FastCGI, PHP


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