Thread: [WebMacro-user] WM cache settings

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Hello,

I have about 1000 templates and am looking for help in setting up the 
cache settings in WebMacro.properties. Can some one please guide me.

Thanks.
Nikhil

Hello Nikhil,

About 2 years ago, we had a very intense 
development/dialog/experimentation with caching.  All of this resulted 
in a pluggable architecture. Brian Goetz provided this architecture on 
the whole. I wrote a caching system, which is best called a 
"generational system". I use it in all of my wm apps.

#entry in webmacro.properties:

CachingProvider.template.CacheManager: org.webmacro.resource.GenerationalCacheManager
CachingProvider.url.CacheManager: org.webmacro.resource.GenerationalCacheManager
# Set reloading to true since we are in development mode by default.
GenerationalCacheManager.*.ReloadOnChange: true
# The refresh rate for incorporating changes to the mutable image
GenerationalCacheManager.*.RefreshRate: 1000

The RefreshRate is the most important for performance purposes. It 
means: "if the cache has not been updated for this amt of time, and 
there are stale changes, and there is an idle interval, then replace the 
current generation with a newer generation.".

Since updates occur only to the prospective cache, the current cache is 
read-only and therefore not subject to syncrhonization.

Give it a try!

Lane

Nikhil G. Daddikar wrote:

> Hello,
>
> I have about 1000 templates and am looking for help in setting up the 
> cache settings in WebMacro.properties. Can some one please guide me.
>
> Thanks.
> Nikhil

-- 
Lane Sharman
Providing Private and SPAM-Free Email
http://www.opendoors.com
858-755-2868

Thank you for your answer. I have two questions:

1) what are those FastWriter settings in WM.properties, there is a note 
there that it will "significantly" affect performance but it doesn't 
tell me how.

2) Is the refresh rate specified in seconds? Also, I don't understand 
it's purpose. Why would I want it to reload after some specific time? I 
would only want it to load after it changes. Right?
Thanks again.

Lane Sharman wrote:

> Hello Nikhil,
>
> About 2 years ago, we had a very intense 
> development/dialog/experimentation with caching.  All of this resulted 
> in a pluggable architecture. Brian Goetz provided this architecture on 
> the whole. I wrote a caching system, which is best called a 
> "generational system". I use it in all of my wm apps.
>
>#entry in webmacro.properties:
>
>CachingProvider.template.CacheManager: org.webmacro.resource.GenerationalCacheManager
>CachingProvider.url.CacheManager: org.webmacro.resource.GenerationalCacheManager
># Set reloading to true since we are in development mode by default.
>GenerationalCacheManager.*.ReloadOnChange: true
># The refresh rate for incorporating changes to the mutable image
>GenerationalCacheManager.*.RefreshRate: 1000
>  
>
> The RefreshRate is the most important for performance purposes. It 
> means: "if the cache has not been updated for this amt of time, and 
> there are stale changes, and there is an idle interval, then replace 
> the current generation with a newer generation.".
>
> Since updates occur only to the prospective cache, the current cache 
> is read-only and therefore not subject to syncrhonization.
>
> Give it a try!
>
> Lane
>
>
> Nikhil G. Daddikar wrote:
>
>> Hello,
>>
>> I have about 1000 templates and am looking for help in setting up the 
>> cache settings in WebMacro.properties. Can some one please guide me.
>>
>> Thanks.
>> Nikhil
>
>
>-- 
>Lane Sharman
>Providing Private and SPAM-Free Email
>http://www.opendoors.com
>858-755-2868
>

Hi Nikhil,

#
# FastWriter Configuration
#
# Misconfiguration of these settings can cause severe performance
# and resource penalties

This is an exagerrattion and I have changed it.

The refresh rate is in milliseconds. When a file changes on disk, there 
is not an event so it has to be polled. This is what has to occur. Every 
1000 millis, check for changed templates and return the next generation 
of a cache.

Lane

Nikhil G. Daddikar wrote:

> Thank you for your answer. I have two questions:
>
> 1) what are those FastWriter settings in WM.properties, there is a 
> note there that it will "significantly" affect performance but it 
> doesn't tell me how.
>
> 2) Is the refresh rate specified in seconds? Also, I don't understand 
> it's purpose. Why would I want it to reload after some specific time? 
> I would only want it to load after it changes. Right?
> Thanks again.
>
> Lane Sharman wrote:
>
>> Hello Nikhil,
>>
>> About 2 years ago, we had a very intense 
>> development/dialog/experimentation with caching.  All of this 
>> resulted in a pluggable architecture. Brian Goetz provided this 
>> architecture on the whole. I wrote a caching system, which is best 
>> called a "generational system". I use it in all of my wm apps.
>>
>> #entry in webmacro.properties:
>>
>> CachingProvider.template.CacheManager: 
>> org.webmacro.resource.GenerationalCacheManager
>> CachingProvider.url.CacheManager: 
>> org.webmacro.resource.GenerationalCacheManager
>> # Set reloading to true since we are in development mode by default.
>> GenerationalCacheManager.*.ReloadOnChange: true
>> # The refresh rate for incorporating changes to the mutable image
>> GenerationalCacheManager.*.RefreshRate: 1000
>>  
>>
>> The RefreshRate is the most important for performance purposes. It 
>> means: "if the cache has not been updated for this amt of time, and 
>> there are stale changes, and there is an idle interval, then replace 
>> the current generation with a newer generation.".
>>
>> Since updates occur only to the prospective cache, the current cache 
>> is read-only and therefore not subject to syncrhonization.
>>
>> Give it a try!
>>
>> Lane
>>
>>
>> Nikhil G. Daddikar wrote:
>>
>>> Hello,
>>>
>>> I have about 1000 templates and am looking for help in setting up 
>>> the cache settings in WebMacro.properties. Can some one please guide 
>>> me.
>>>
>>> Thanks.
>>> Nikhil
>>
>>
>>
>> -- 
>> Lane Sharman
>> Providing Private and SPAM-Free Email
>> http://www.opendoors.com
>> 858-755-2868
>>
>
>
> -------------------------------------------------------
> SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
> from IBM. Find simple to follow Roadmaps, straightforward articles,
> informative Webcasts and more! Get everything you need to get up to
> speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
> _______________________________________________
> Webmacro-user mailing list
> Web...@li...
> https://lists.sourceforge.net/lists/listinfo/webmacro-user
>

-- 
Lane Sharman
Providing Private and SPAM-Free Email
http://www.opendoors.com
858-755-2868