Performance and Scalability

Why might I need Alternative Stream Wrappers?

Some hosting configurations with multiple webservers use a mix of filesystems local to each webserver and storage which is shared between the webs (e.g. using nfs or gluster).

It can sometimes be useful to, for example, use fast local storage for temp files wherever possible, but shared storage where the webs might need to share access to the same set of temporary files.

What this module does

This module allows the setting of "tags" to ease the burden of invalidating interconnected pages on a website using Varnish. Information about this strategy can be found at the Varnish site. It accomplishes this by having Rules actions that set headers and also trigger the Purge module to remove them.

This module is a vanilla Drupal implementation that integrates drupal into the Edge80 Accelerator.

Integration between Drupal and Couchbase with the following features:

An API for using Couchbase and couchbase php sdk with Drupal.
Couchbase backends for the following systems (all drop-in):
Caching (memcache.inc)
A module that provides a comprehensive administrative overview of Drupal's interaction with Couchbase

// @TODO Better project page...

Brief: http://davidwalsh.name/dns-prefetching
Spec: http://www.chromium.org/developers/design-documents/dns-prefetching

Module development sponsored by Fluxus.io.

This Drupal extension deeply integrates your Drupal application with the New Relic Insights service.

This project allows to flush cache for drupal blocks and entities (nodes, users, taxonomy terms). It has dependency on contextual links. For blocks now supported standard drupal blocks, views and panels. After installation you will be able to:

This module creates a button called "Clear Varnish page cache" in the "shortcut-set-1" toolbar or under the 'Flush caches' section of the admin_menu ( if installed ).

When clicking the button, Varnish will receive the command to purge the cache for the page that the user is viewing at that time.

This module provides an API that implements semaphores using flood API.

A semaphore is more than a lock. A lock is usually used in a binary
situation, it is either locked or it is not. A semaphore is used to
control the number of concurrent things that can happen.