Only one question 2 Fred

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 12:16 am

Restored from previous forum. Originally posted by tranquil.

Hi Fred!

Hm, can it be, that you allocate 64k Memory for each string I use in Dimensions and structures??? If its so, please make an option in the Compiler-Window that everyone should select the size for his strings before compiling. I definitly DO NOT need such a huge amount of space for a string. And thats why I run out of memory in my app. That can not be.

The best way is, if you only alloc the space needed for a string. You told something like that in another thread (or was it in the PB Chatroom!?)

Please, do something on that.
Otherwise we have to decrease the power of our app in a huge way!

Cheers

Mike

Tranquilizer/ Secretly!
Registred PureBasic User

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 5:42 am

Restored from previous forum. Originally posted by fred.

What ? 64 kb for each string ?? It's not Visual Basic

. Each string use ONLY the needed space in memory. The 64k limit is the 'working' buffer, allocated once to do all the string operations (a$+a$ etc..). May be you run out of mem due to memory leaks detected by FakeFactory and already fixed (if you're using lot of strings in procedures).

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 5:47 am

Restored from previous forum. Originally posted by TronDoc.

and already fixed (if you're using lot of strings in procedures).
Fred - AlphaSND

is it fixed for the next version, or can I get an update somewhere? -jb

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 11:58 am

Restored from previous forum. Originally posted by tranquil.

Yep, I nearly always use Procedures with Dimensioned Structures.
Huge ammount of Datas at the Server-Side.

So I have to wait for an update.... Thans a lot, thats what I call support!

Tranquilizer/ Secretly!
Registred PureBasic User

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 12:22 pm

Restored from previous forum. Originally posted by fred.

PB 2.95 should be released this night..

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 1:25 pm

Restored from previous forum. Originally posted by tranquil.

Now I checked fakefactorys thread, but that is not the bug I mean.

I try the following source on my 128 MB Ram Notebook:

; Structure Fileshare (zu tauschenede Files)
Structure share
name.s ; Name der Datei
size.l ; Groesse
type.w ; Typ als Code
id.l ; Unique File-ID
comment.s[5] ; File Comments
EndStructure

maxuser = 10000 ;Max User 7886/1000 Files
sharedmax = 200 ; Maximum amount of files shared per user
Dim sharedfiles.share(maxuser,sharedmax)

If I try to set maxuser=8000 and sharedmax=1000 (Which means that every User on the serverside is able to share up to 1000 Files) the Dim Command crashes.

Why? 128 MB not enough? How can I obtain this crash problem?

Tranquilizer/ Secretly!
Registred PureBasic User

BackupUser · Post by **BackupUser** » Sun Feb 24, 2002 3:17 pm

Restored from previous forum. Originally posted by fred.

Your structure is 34 bytes wide, for 10 000 * 200 * 34 = 70 Mb of CONTIGOUS memory. So yes, you're 128 MB notepad isn't enough for it. You're approach isn't very good for this kind of app. Better use the linked list which are much flexible and doesn't need a contigous memory area (so you could allocate up to 2GB of RAM).

For example:

NewList User()
NewList Files()

For each files, give an user ID etc..

Walking trough linked list is very very fast under pureabsic, so you could handle a very big amount of files/users.

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Mon Feb 25, 2002 3:21 pm

Restored from previous forum. Originally posted by DarkUni.

Fred's right ... Structures rock for situations like this. And you get all the bennies and flexibility of them.

Shane R. Monroe
Dark Unicorn Productions