[OpenLayers-Users] Firefox memory usage

[Paul Spencer]

Opps, that's not 260 MB ... only about 26.

Cheers,

Paul

On 29-Jan-08, at 8:03 PM, Paul Spencer wrote:

> The other issue for firefox 2 is that it decompresses all the tiles  
> and stores them as decompressed RGBA images in memory.  For a  
> 256x256 pixel tile at 4 bytes per pixel, this works out to 260k per  
> tile - regardless of the original format.  Depending on the size of  
> your viewport and taking into consideration the buffer of tiles that  
> OL keeps outside the viewport, it is easy to have more than 100  
> tiles in three layers, that's 260 MB of memory, just in tiles.  This  
> is one of the big issues fixed in firefox 3.  The same OL app  
> running in firefox 3 only uses about 70-80 MB.
>
> Cheers
>
> Paul
>
> On 29-Jan-08, at 2:32 PM, cmose wrote:
>
>>
>> I believe part of it is firebugs network monitoring feature. In my  
>> specific
>> case I have multiple dns entries for my tilecache server so the  
>> browser is
>> firing off a significant number of requests. Having firebug monitor  
>> these
>> requests was consuming a bunch of memory and slowing things down a  
>> good
>> deal.
>>
>>
>> Jon Britton wrote:
>>>
>>>
>>> Ah.. yes I do. I'll turn it off tomorrow when I get a chance and  
>>> see if it
>>> makes a difference. I wonder why that would do it... there must be  
>>> a bug
>>> somewhere with it.
>>> Thanks,
>>> jon
>>>
>>>
>>> cmose wrote:
>>>>
>>>> Do you have firebug enabled? Firefox consumes massive amounts of  
>>>> memory
>>>> when I'm running my client with firebug enabled...
>>>>
>>>>
>>>> Jon Britton wrote:
>>>>>
>>>>> Hi,
>>>>> I'm using Firefox to display a map serverd by GeoServer with  
>>>>> only three
>>>>> layers being displayed (Google, roads, points). In Internet  
>>>>> Explorer 6
>>>>> the memory usage sticks to around 60MB, however Firefox just keeps
>>>>> eating up memory and lags my machine! At the moment I'm running  
>>>>> it and
>>>>> it's hit 350MB memory usage. It's as if it's cachine the images  
>>>>> itself
>>>>> or something.
>>>>>
>>>>> Has anybody else had a problem with this?
>>>>>
>>>>> Thanks,
>>>>> Jon
>>>>>
>>>>
>>>>
>>>
>>>
>>
>> -- 
>> View this message in context: http://www.nabble.com/Firefox-memory-usage-tp15160377p15167555.html
>> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>>
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