Re: [android-developers] Using App Cache - Without Trying to

Attach a file

Edit subject

Quote original

Add Cc

On Wednesday, May 15, 2013 3:18:12 PM UTC-7, Piren wrote:

 How much is too much?

 

Obviously i don't have an answer for that... but if the device freezes and you could pinpoint the issue to these requests, it's safe to say that you've gone over the limit for that device :)

I agree with that - if I can succeed on the first two. I still don't have the device. Anyone close to Portland OR with Droid Razr Maxx HD?
 
I wonder how much is too much because Movies, for example, can stream an entire movie to storage and retrieve it and display it in realtime. I think that is much greater load than I am putting on it.
 

 What drive isn't flash? I'm assuming that app internal storage (I don't use), external storage, and removable external storage are all flash.

Meant the internal drive of course.  Unless you pushed the DB to the SDCard, it uses the internal storage btw, any either way DB access is I/O.

 
I don't push the DB to SDCard, I create it there in the first place. Extremely advanced users can actually choose an external SD Card.
There is a mode that uses a lot of little files, and another one that uses one big DB with lots of binary blocks.
 

By System blocking i meant that all drive access eventually is on a queue ... (not that it blocks the entire system thread wise). 

That is something I would expect, and therefore multiple threads could be blocked waiting for that.
 

So hammering the DB with requests is a nice way to make the entire device unresponsive.

 

I've never actually checked if keeping the DB open will load it to memory,

The whole thing? It better not. That's not my understanding of how databases should work.
 I'm not sure what size of DB you are used to working with.
 

but if you know you have lots of DB access, it's a good idea to cache it in memory anyway.

I believe as much caching as should be done is already done. I wouldn't use a database or the file system at all if the whole thing could fit in memory.  

Nathan

--
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
---
You received this message because you are subscribed to the Google Groups "Android Developers" group.
To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.