kamnani opened a new pull request #340: URL: https://github.com/apache/tomcat/pull/340
Tomcat Takes quite a bit of time to start the server if there are 1000's of Jar's in the class path. This wastes a lot of developer time, where we need to start and stop the server quite often. This pull request has a couple of optimizations that reduces the server startup time : 1) Accelerate classloading *Optimization 1: *Cache and maintain file handles for each jar. This adds 1MB of old generation memory but eliminates 100,000,000+ file open/close operations. *Optimization 2: *Cache the contents of each jar in memory via a Bloom filter. This adds 1.5MB of old generation memory but eliminates 100,000,000+ archive lookups. 2) Parallelize annotation scans Tomcat searches the entire classpath for all instances of certain annotations, such as @WebServlet, @WebFilter, @MultipartConfig, etc. This is performed by scanning each classpath entry sequentially. *Optimization: *Scan the jars in parallel. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
