All About Symbian - Nokia (S60) and Sony Ericsson (UIQ) smartphones unwrapped

  #1  
Old 18-03-2010, 07:36 AM
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Nokia, Opera, Skyfire RAM usage!

I have on my phone the latest versions of the built-in Nokia browser as well as Opera Mini, Opera 10 and Skyfire.

I decided to check the RAM usage for each of these browsers by just opening them and I was amazed at the results!

Scr000039 shows the phone in idle mode with the usual app's open and a RAM of 42.5MB.

Scr000040 shows the Nokia built-in browser open and a RAM of 38.9MB = RAM usage 3.6MB

Scr000041 is Opera Mini open and a RAM of 33.3MB = RAM usage 9.2MB

Scr000042 is Opera 10 open and a RAM of 29.2MB = RAM usage 13.3MB

Scr000042 is Skyfire open and a RAM of 15.1MB = RAM usage of 27.4MB

As can be seen from this, there is a considerable difference between the Nokia and Skyfire browsers with Skyfire using over 7.5 times more RAM than Nokia and there is only about 4MB difference between Opera Mini and Opera 10.

Personally I find the built-in Nokia browser serves most of my needs and works by default with Google voice.

Just be aware that if you are low on RAM overall that opening some of these browsers will cause closure of some other app's.
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  #2  
Old 18-03-2010, 08:49 AM
bchliu bchliu is offline
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Err.. why not open a few webpages first before calculating the RAM? How can you benchmark without it actually performing other than loading it up?? :S

  #3  
Old 18-03-2010, 08:54 AM
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Quote:
Originally Posted by bchliu View Post
Err.. why not open a few webpages first before calculating the RAM? How can you benchmark without it actually performing other than loading it up?? :S
That thought did occur to me but what would be the point if just opening the browser uses X amount of RAM would it change the equation very much by opening a given web page?
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Old 18-03-2010, 09:33 AM
bchliu bchliu is offline
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No.. actually it is the best way to benchmark. Using the Nokia Browser, it might start with 4MB but blows up to 40MB depending on things loaded on the current (eg flash files) and previous pages. The same page on Opera Mini for example will not go beyond 15MB as thats the limit the browser have on the memory. Some browsers will grab as much memory as possible and use that as the limit for its web pages.

Its kind of like.. benchmarking a PC by installing and booting Windows.. without actually using any benchmark or load simulating applications?

Just a thought..

  #5  
Old 18-03-2010, 09:41 AM
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Good shout bchliu!

OK... done the same test again and this time I opened this page on each browser and it does make a difference to the equation but not to the overall ranking as follows:-

Scr000044 shows RAM in idle mode at 42MB

Scr000045 shows Nokia browser at 32.3MB = RAM usage of 9.7MB

Scr000046 shows Opera Mini browser at 31.5MB = RAM usage of 10.5MB

Scr000047 shows Opera 10 browser at 17.3MB = RAM usage of 24.7MB

Scr000049 shows Skyfire browser at 12.8MB = RAM usage of 29.2MB

So, Skyfire uses 3 times more RAM than the Nokia browser and there is now, not a lot of difference between Nokia and Opera Mini.
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  #6  
Old 18-03-2010, 10:14 AM
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Just as an aside, I notice that I can now set Opera Mobile as my default browser on the N97.

Menu > Settings > Phone > Application sett. > Default apps. > Browsing internet > Now offered Web or Opera Mobile.

Think I'll stick to Web!
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  #7  
Old 18-03-2010, 10:24 AM
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On top of which, of course, some browsers use memory and aren't very good at giving it back when they're done. And then there's the inevitable memory leaks...

For even more details you could do: -

After loading.
After browsing this page
After going to google, searching for something and visiting the first 10 results

That'd give you more of an idea about session stability. But would be very tedious and I wouldn't recommend it...

D
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  #8  
Old 18-03-2010, 10:37 AM
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Hello Dave!

Good to hear from you.

Shame about Fred Wedlock!

Thanks for your suggestion. It looks like I may have started something, that I thought was oh so simple, and will require a bit more effort.

Should I find myself in a deserted cabin in the back woods, snowed in with no booze, I might give it a whirl.

On second thoughts... I'll walk to the nearest offie!
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  #9  
Old 18-03-2010, 10:49 AM
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Quote:
Originally Posted by ironass View Post
Hello Dave!

Good to hear from you.

Shame about Fred Wedlock!
Nice to be back. I have another new N97 from Nokia (new IMEI and everything). We'll see how that goes. Lens cover certainly doesn't look any different.

He'll be missed.

D
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  #10  
Old 18-03-2010, 10:54 AM
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Quote:
Originally Posted by davecozens View Post
Lens cover certainly doesn't look any different.

D
You obviously missed my post in which I solved the lens scratching problem entirely.

In a nutshell... with the lens covered closed you just have to put a small amount of super glue around the lens cover edges and allow it to dry.

Simples!
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  #11  
Old 18-03-2010, 10:55 AM
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How do u check the RAM?

  #12  
Old 18-03-2010, 10:57 AM
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Quote:
Originally Posted by bang bang boom View Post
How do u check the RAM?
I use Handy Taskman. Available here:-

http://nokia-n97-software.epocware.c...y_Taskman.html

Screenshots taken with Best Screen Snap 2. Free from here:-

http://www.davecozens.com/n97/
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Last edited by ironass; 18-03-2010 at 11:10 AM. Reason: update

  #13  
Old 18-03-2010, 12:15 PM
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OK...

Third, and final, attempt thanks to davecozens and bchliu.


I started by opening this posting on each browser and then Googled Gordon Brown and opened the first 10 items in results.

Here we go:-

Scr000050 shows RAM in idle mode at 42.2MB

Scr000051 shows Nokia browser at 26.9MB = RAM usage of 15.3MB

Scr000055 shows Opera Mini browser at 26.7MB = RAM usage of 15.5MB

Scr000053 shows Opera 10 browser at 14.2MB = RAM usage of 28MB

Scr000054 shows Skyfire browser at 11.3MB = RAM usage of 30.9MB

So, at the end of the day, both the Nokia built-in browser and the Opera Mini are virtually neck and neck and the best at RAM usage. They were also the quickest to load as well.

Both the Opera 10 and Skyfire use about twice as much RAM as the other two and were slower to use.

As you will note from the screenshots, both Opera 10 and Skyfire had actually already forced some of my app's to close!
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Last edited by ironass; 18-03-2010 at 12:21 PM.

  #14  
Old 18-03-2010, 02:24 PM
bang bang boom bang bang boom is offline
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Will have a look at that taskman... Can u pay via paypal?

How do u get 49mb on start up? Is the RAM the same as the fones internal memory?

Also, you've probably answered my questions about the force closures.... Can be annoying

  #15  
Old 18-03-2010, 02:36 PM
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Quote:
Originally Posted by bang bang boom View Post
Will have a look at that taskman... Can u pay via paypal?

How do u get 49mb on start up? Is the RAM the same as the fones internal memory?

Also, you've probably answered my questions about the force closures.... Can be annoying
1. Can't remember. Click on the link and find out.
Alternatively, download System Staus from here, free!

http://symbianapplications.info/mobi...okia-n97-5800/

2. RAM is different to the phones memory C: drive.
In a nutshell, it is the short term memory for active app's and the N97 is woefully short of it. See here for beginners guide:-

http://www.pantherproducts.co.uk/Art...t_is_RAM.shtml

3. Forced closures occur because of item 2.
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