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https://issues.apache.org/jira/browse/FELIX-4042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard S. Hall closed FELIX-4042.
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Resolution: Duplicate
Read the original issue for some of my thoughts on this...in short, I'm not
sure how much improvement you'll see.
> improve Felix.init time by modifying the way the cache is loaded
> ----------------------------------------------------------------
>
> Key: FELIX-4042
> URL: https://issues.apache.org/jira/browse/FELIX-4042
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Affects Versions: framework-4.2.1
> Reporter: Tom Mueller
>
> The GlassFish server has 292 bundles and this number continues to increase.
> When starting the server, the entire bundle cache is read in by Felix in the
> Felix.init method by calling Felix.reloadBundle in a simple for loop.
> Currently, in GlassFish this takes 440 ms on a MBP which is about 10% of the
> entire server startup time.
> With the availability of multi-threaded CPUs and memory-cached disk I/O, it
> might be possible to improve Felix framework initialization time by making
> this process multi-threaded. Unfortunately, the reloadBundle method locks the
> global lock for almost its entire execution, so simply multi-threading the
> loop will not help. The reloadBundle logic will need to be refactored to
> make multi-threading effective in improving performance.
> Another idea is to somehow flag certain bundles for reloading before other
> bundles and then allow "lazy" loading of this cache. When GlassFish starts,
> there are some bundles that are needed immediately while others are not
> accessed until later.
> The goal for this improvement request is to have a constant initialization
> time for Felix that is independent of the number of bundles that are in the
> cache.
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