Re: [E-devel] Community Building

[Nick H. <me...@me...>]

Sebastian Dransfeld wrote:
> Nick Hughart wrote:
>   
>> Sebastian Dransfeld wrote:
>>     
>>> There is an icon cache with 100 icons. Latest used icons are prepended 
>>> to the list. If an icon is in the cache, the cache does help.
>>>
>>> So for a scenario where a user only triggers efreet_icon through f.ex. 
>>> a   small favorite menu in e17, the cache is good. But if the modules 
>>> menu is accessed it will blow the cache. So the cache should have a 
>>> method to weigh which icons are most used.
>>>   
>>>       
>> For one, why is it limited to 100 icons?
>>     
>
> Just a random number, as I have not done any tests on how much memory 
> the icon cache uses, and I have no idea how many icons there are in use 
> in a typical e17 session.
>
>   
>> I can see this overflowing 
>> fairly easy in E as it is now and this doesn't even include mime icons.  
>> With my tests I haven't seen the cache come into play at all, the time 
>> between searching for icons once and searching for that same set again 
>> results in nearly identical times.  This is when searching for mimetype 
>> icons and unless the cache doesn't cover the searching this does I'd 
>> have to disagree that it has any useful effect.  There aren't that many 
>> mimetypes in /usr/lib either so I don't think I'm exceeding the 100 icon 
>> limit in this case and actually this case should shine with this caching 
>> system.
>>     
>
> I have only checked with limiting the icon list in one of the efreet 
> tests. Could you send me your test code?
>
> Limiting the icon list in ef_icon_theme.c to 100 icons, and duplicating 
> the icon search code:
> (first drop disk cache: echo 3 > /proc/sys/vm/drop_caches)
> First run : 0.390257
> Second run: 0.032595
>   

I put my test code here:

http://www.mekius.net/files/misc/efreet_mime_test.c

I could be doing something wrong or maybe there is an issue with my mime 
code, but I seem to recall the caching coming into play with the old 
cache, but you were working on it around the time I was finishing the 
efreet_mime_icon stuff iirc.  Let me know if you get any different 
results, the program should be run as follows when compiled:

efreet_mime_test <directory to read from>

This will read each file in the dir, get it's mimetype and mimetype 
icon.  /usr/lib is what I usually test with due to it's number of 
similar mimetypes and sheer size.
> Sebastian
>
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