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https://issues.apache.org/jira/browse/WW-3766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216598#comment-13216598
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zhouyanming commented on WW-3766:
---------------------------------
yes,I have tested
> remove struts.freemarker.mru.max.strong.size from default.properties
> --------------------------------------------------------------------
>
> Key: WW-3766
> URL: https://issues.apache.org/jira/browse/WW-3766
> Project: Struts 2
> Issue Type: Improvement
> Reporter: zhouyanming
> Priority: Critical
> Labels: freemarker
>
> if struts.freemarker.mru.max.strong.size > 0 ,freemarker will use
> MruCacheStorage instead of SoftCacheStorage,and MruCacheStorage is not
> concurrent,it will synchronized on every call,it will affect performance.
> in TemplateCache:
> CachedTemplate cachedTemplate;
> if(isStorageConcurrent) {
> cachedTemplate = (CachedTemplate)storage.get(tk);
> }
> else {
> synchronized(storage) {
> cachedTemplate = (CachedTemplate)storage.get(tk);
> }
> }
> please remove struts.freemarker.mru.max.strong.size from default.properties
> lets developers make their own choice.
> a better solution is implements a concurrent MruCacheStorage for struts2
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