[logback-dev] [JIRA] (LOGBACK-1141) Improve logback startup time

[Ceki Gulcu (JIRA)]

Title: Message Title

Ceki Gulcu commented on LOGBACK-1141   Re: Improve logback startup time Chris Beams This issue is tougher than I expected. Some simple statements executed during logback initialization, e.g. loops on lists with 3 or 4 elements take 20 milliseconds, but would probably cost only a few nanoseconds later in the application lifecycle. Joran could be made to be quicker but that is not a simple undertaking. Another way to reduce logback's impact on application start up is to skip configuration using Joran (with a configuration file that needs to be looked up) and instead configure logback programmatically with a Configurator specified under META-INF/services/ch.qos.logback.classic.spi.Configurator. In a recent commit, I modified BasicConfigurator to conform to the the Configurator interface. Here is a very simple app to measure logback's impact on app start up time. public class Main { static public void main(String[] args) throws Exception { long start = System.nanoTime(); Logger logger = LoggerFactory.getLogger("a"); long end = System.nanoTime(); long diff = (end-start)/1000/1000; System.out.print("elapsed time in milli-seconds "+diff); } } To enable BasicConfigurator, just add the line "ch.qos.logback.classic.BasicConfigurator" in the file META-INF/services/ch.qos.logback.classic.spi.Configurator. To enable another configurator you would add its fqcn in the aforementioned services file. Add Comment   This message was sent by Atlassian JIRA (v6.4.12#64027-sha1:e3691cc)

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