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Posted to users@wicket.apache.org by hok <iv...@gmail.com> on 2010/11/24 20:27:55 UTC
IResourceSettings.setUseTimestampOnResources(true) and performance
Hello,
I had a problem with slow loading of pages and response to ajax requests.
After some debugging I traced the problem to be that wicket constantly
tries:
DEBUG - UrlResourceStream - cannot convert url:
jar:file:/C:/Users/hok/.m2/repository/org/apache/wicket/wicket/1.5-M3/wicket-1.5-M3.jar!/org/apache/wicket/markup/html/wicket-event.js
to file (URI is not hierarchical), falling back to the inputstream for
polling
DEBUG - ResourceStreamLocator - Attempting to locate resource
'org/apache/wicket/markup/html/wicket-event_en_US.js' on path [folders = [],
webapppaths: []]
DEBUG - ResourceStreamLocator - Attempting to locate resource
'org/apache/wicket/markup/html/wicket-event_en_US.js' using classloader
sun.misc.Launcher$AppClassLoader@cac268
and this happens because that by default (or at least I think so) wicket
adds timestamp on the resources -
ResourceSettings.setUseTimestampOnResources(true) and every resource is read
from the jar files on every request. When a resource is in a jar file a
java.lang.IllegalArgumentException: URI is not hierarchical is thrown in the
UrlResourceStream constructor and a lot of attempts are made to load the jar
file through different loaders. In my case this led to a slow response
times.
After disabling timestamp on resources
(ResourceSettings.setUseTimestampOnResources(false)) the problem disappears
and the performance is fine. However in the javadoc of
setUseTimestampOnResources:
Enabling timestamps on resources will inject the last modification time of
the resource into the filename (the name will look something like
'style-ts1282915831000.css' where the large number is the last modified date
in milliseconds and '-ts' is a prefix to avoid conflicts with filenames that
already contain a number before their extension. *
Since browsers and proxies use the filename of the resource as a cache key
the changed filename will not hit the cache and the page gets rendered with
the changed file.
In this case this useful functionality is lost. Is it possible to have "the
best of both worlds"? Thanks.
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Re: IResourceSettings.setUseTimestampOnResources(true) and
performance
Posted by rajeev_yadav <ra...@dell.com>.
Any updates on this issue? I am seeing this slowness in 1.4.15 version also.
Most of the time is spent in loading wicket js and css resources.
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Re: IResourceSettings.setUseTimestampOnResources(true) and performance
Posted by Martin Grigorov <mg...@apache.org>.
This is improved in 1.5 for sure.
I don't remember whether it is improved in 1.4.x or not.
Try with 1.4.17 (latest 1.4 release) and come back with the points
where you think it is slow.
On Thu, Jun 30, 2011 at 5:18 PM, rajeev_yadav <ra...@dell.com> wrote:
> Any updates on this issue? I am seeing this slowness in 1.4.15 version also.
> Most of the time is spent in loading wicket js and css resources.
>
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Training, Consulting, Development
http://jWeekend.com
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Re: IResourceSettings.setUseTimestampOnResources(true) and
performance
Posted by rajeev_yadav <ra...@dell.com>.
Any updates on this issue? I am seeing this slowness in 1.4.15 version also.
Most of the time is spent in loading wicket js and css resources.
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Re: IResourceSettings.setUseTimestampOnResources(true) and performance
Posted by Peter Ertl <pe...@gmx.org>.
1.4 is not affected - timestamps on resources are currently only available in wicket 1.5
Am 29.12.2010 um 15:49 schrieb mf:
>
> What about Version 1.4.15? I got this message for each request. I think i
> slows down, too?
>
>
> DEBUG | 29.12. 13:31:55 | cannot convert url:
> jar:file:/D:/eclipse_jee_helios/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/mytest/WEB-INF/lib/wicket-1.4.15.jar!/org/apache/wicket/markup/html/wicket-event.js
> to file (URI is not hierarchical), falling back to the inputstream for
> polling | UrlResourceStream.<init>() |
> org.apache.wicket.util.resource.UrlResourceStream
> class org.apache.wicket.ajax.WicketAjaxReference,
> org/apache/wicket/ajax/wicket-ajax.js
> DEBUG | 29.12. 13:31:55 | Attempting to locate resource
> 'org/apache/wicket/ajax/wicket-ajax.js' on path [folders = [], webapppaths:
> []] | ResourceStreamLocator.locateByResourceFinder() |
> org.apache.wicket.util.resource.locator.ResourceStreamLocator
> DEBUG | 29.12. 13:31:55 | Attempting to locate resource
> 'org/apache/wicket/ajax/wicket-ajax.js' using classloader WebappClassLoader
> delegate: false
> repositories:
> /WEB-INF/classes/
> ----------> Parent Classloader:
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Re: IResourceSettings.setUseTimestampOnResources(true) and
performance
Posted by mf <ma...@mcs-ag.com>.
What about Version 1.4.15? I got this message for each request. I think i
slows down, too?
DEBUG | 29.12. 13:31:55 | cannot convert url:
jar:file:/D:/eclipse_jee_helios/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/mytest/WEB-INF/lib/wicket-1.4.15.jar!/org/apache/wicket/markup/html/wicket-event.js
to file (URI is not hierarchical), falling back to the inputstream for
polling | UrlResourceStream.<init>() |
org.apache.wicket.util.resource.UrlResourceStream
class org.apache.wicket.ajax.WicketAjaxReference,
org/apache/wicket/ajax/wicket-ajax.js
DEBUG | 29.12. 13:31:55 | Attempting to locate resource
'org/apache/wicket/ajax/wicket-ajax.js' on path [folders = [], webapppaths:
[]] | ResourceStreamLocator.locateByResourceFinder() |
org.apache.wicket.util.resource.locator.ResourceStreamLocator
DEBUG | 29.12. 13:31:55 | Attempting to locate resource
'org/apache/wicket/ajax/wicket-ajax.js' using classloader WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
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Re: IResourceSettings.setUseTimestampOnResources(true) and performance
Posted by Peter Ertl <pe...@gmx.org>.
fixed in trunk for 1.5
Am 24.11.2010 um 22:39 schrieb Peter Ertl:
> Thanks!
>
> Am 24.11.2010 um 22:10 schrieb hok:
>
>>
>> https://issues.apache.org/jira/browse/WICKET-3194
>> https://issues.apache.org/jira/browse/WICKET-3194
>> --
>> View this message in context: http://apache-wicket.1842946.n4.nabble.com/IResourceSettings-setUseTimestampOnResources-true-and-performance-tp3057946p3058085.html
>> Sent from the Users forum mailing list archive at Nabble.com.
>>
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>>
>
>
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Re: IResourceSettings.setUseTimestampOnResources(true) and performance
Posted by Peter Ertl <pe...@gmx.org>.
Thanks!
Am 24.11.2010 um 22:10 schrieb hok:
>
> https://issues.apache.org/jira/browse/WICKET-3194
> https://issues.apache.org/jira/browse/WICKET-3194
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Re: IResourceSettings.setUseTimestampOnResources(true) and
performance
Posted by hok <iv...@gmail.com>.
https://issues.apache.org/jira/browse/WICKET-3194
https://issues.apache.org/jira/browse/WICKET-3194
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Re: IResourceSettings.setUseTimestampOnResources(true) and performance
Posted by Peter Ertl <pe...@gmx.org>.
Can you file an JIRA issue and attach a quickstart to reproduce this case?
That would help analyzing your mentioned issue tremendously...
Am 24.11.2010 um 20:27 schrieb hok:
>
> Hello,
> I had a problem with slow loading of pages and response to ajax requests.
> After some debugging I traced the problem to be that wicket constantly
> tries:
>
> DEBUG - UrlResourceStream - cannot convert url:
> jar:file:/C:/Users/hok/.m2/repository/org/apache/wicket/wicket/1.5-M3/wicket-1.5-M3.jar!/org/apache/wicket/markup/html/wicket-event.js
> to file (URI is not hierarchical), falling back to the inputstream for
> polling
> DEBUG - ResourceStreamLocator - Attempting to locate resource
> 'org/apache/wicket/markup/html/wicket-event_en_US.js' on path [folders = [],
> webapppaths: []]
> DEBUG - ResourceStreamLocator - Attempting to locate resource
> 'org/apache/wicket/markup/html/wicket-event_en_US.js' using classloader
> sun.misc.Launcher$AppClassLoader@cac268
>
> and this happens because that by default (or at least I think so) wicket
> adds timestamp on the resources -
> ResourceSettings.setUseTimestampOnResources(true) and every resource is read
> from the jar files on every request. When a resource is in a jar file a
> java.lang.IllegalArgumentException: URI is not hierarchical is thrown in the
> UrlResourceStream constructor and a lot of attempts are made to load the jar
> file through different loaders. In my case this led to a slow response
> times.
> After disabling timestamp on resources
> (ResourceSettings.setUseTimestampOnResources(false)) the problem disappears
> and the performance is fine. However in the javadoc of
> setUseTimestampOnResources:
>
> Enabling timestamps on resources will inject the last modification time of
> the resource into the filename (the name will look something like
> 'style-ts1282915831000.css' where the large number is the last modified date
> in milliseconds and '-ts' is a prefix to avoid conflicts with filenames that
> already contain a number before their extension. *
>
> Since browsers and proxies use the filename of the resource as a cache key
> the changed filename will not hit the cache and the page gets rendered with
> the changed file.
>
> In this case this useful functionality is lost. Is it possible to have "the
> best of both worlds"? Thanks.
> --
> View this message in context: http://apache-wicket.1842946.n4.nabble.com/IResourceSettings-setUseTimestampOnResources-true-and-performance-tp3057946p3057946.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
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