Francisco Hernandez wrote:
excellent, ill give this a shot.
Dag Liodden wrote:
I think that using the taglib is slow due to the massive amount of template parsing that is associated with rendering of the tags. By default, Velocity does not cache templates and so each tag will result in loading and parsing the templates. I've done a very simple stress-test with profiling and turning on resource increased performance noticeably on results with extensive use of the taglib (e.g a large input form). Mathias, since you obviously have a test-harness ready to go, perhaps you could turn caching on and give us some figures?
Below is a simple Velocity configuration that goes into velocity.properties in WEB-INF with caching turned on. The modificattion interval is in seconds and could probably be adjusted up too (I use 2 seconds since it's adequate for development) - I think zero means never refresh but I can't really remember from the top of my head.
-- Snip --
velocimacro.library = VM_global_library.vm,tigris-macros.vm
runtime.log.error.stacktrace = true runtime.log.warn.stacktrace = true runtime.log.info.stacktrace = true runtime.log.invalid.reference = true
# Resource loaders resource.loader = file, class
file.resource.loader.description = Velocity File Resource Loader
file.resource.loader.class = org.apache.velocity.runtime.resource.loader.FileResourceLoader
file.resource.loader.path = .,WebRoot
file.resource.loader.modificationCheckInterval = 2
file.resource.loader.cache = true
class.resource.loader.description = Velocity Classpath Resource Loader
class.resource.loader.class = org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
file.resource.loader.modificationCheckInterval = 2
file.resource.loader.cache = true
velocimacro.permissions.allow.inline = true velocimacro.permissions.allow.inline.to.replace.global = true velocimacro.permissions.allow.inline.local.scope = false
velocimacro.context.localscope = false
#----------------------------------------------------------------------------
# INTERPOLATION
#----------------------------------------------------------------------------
# turn off and on interpolation of references and directives in string
# literals. ON by default :)
#----------------------------------------------------------------------------
runtime.interpolate.string.literals = true
#----------------------------------------------------------------------------
# RESOURCE MANAGEMENT
#----------------------------------------------------------------------------
# Allows alternative ResourceManager and ResourceCache implementations
# to be plugged in.
#----------------------------------------------------------------------------
resource.manager.class = org.apache.velocity.runtime.resource.ResourceManagerImpl
resource.manager.cache.class = org.apache.velocity.runtime.resource.ResourceCacheImpl
-- Snip --
Cheers,
Dag
Jason Carreira wrote:
I think there's still a major Velocity tuning issue there that we need to address...
-----Original Message-----
From: Francisco Hernandez [mailto:[EMAIL PROTECTED] Sent: Thursday, January 08, 2004 3:28 PM
To: [EMAIL PROTECTED]
Subject: Re: [OS-webwork] Xwork/WebWork2 under extreme load
i've noticed that using webwork2 taglibs is slow.. the more i use the slower requests get
BOGAERT Mathias wrote:
Hi,
I'm currently stress testing my application on WebLogic 8.1 under extreme load. It seems Xwork has some blocking issues, especially in regard to OGNL (getting/setting values on the stack).
Before I go further to investigate deeply, did anyone see
this before?
And are there any best practices concerning threads and the
way a web
application should be written?
Thanks, Mathias Bogaert
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