Second Life Forums Archive - dataserver / notecard question

Rizado DaSilva

Merchant

Join date: 12 May 2005

Posts: 30

01-31-2006 12:51

Ok, I am playing with a config file for reading in canfiguration variables into a script. What I have noticed is that when I hard code the variables into the script I have like 2000 bytes left when it is finished loading the script.

When I use a dataserver to read the notecard and get the exact same variables, I have about 700 bytes left?

Anyone shed some light on this?

Thanks,

=R

Masakazu Kojima

ケロ

Join date: 23 Apr 2004

Posts: 232

01-31-2006 13:26

From: someone

http://secondlife.com/badgeo/wakka.php?wakka=llGetFreeMemory
llGetFreeMemory will not take into account memory that has been freed, resulting in far less free memory reported than actually exists. What it will report is the historic free memory--the smallest free memory up until that point.

CODE

dataserver(key qid, string data) {
    myvar = data; // the contents of 'data' are now in memory twice
} // now 'data' is freed, even though llGetFreeMemory() won't notice

Rizado DaSilva

Merchant

Join date: 12 May 2005

Posts: 30

01-31-2006 14:13

CODE

 dataserver(key qid, string data) { 
 	myvar = data; // the contents of 'data' are now in memory twice 
 } // now 'data' is freed, even though llGetFreeMemory() won't notice

While I would agree with that, after I noticed this I created two seperate scripts, the first which loaded the global variables and no notecard system at all...

CODE

string myvar = "a bunch of text";

And the second which loaded blank global variables and then updated them via the notecard...

CODE


 string myvar;
 
 dataserver(key qid, string data) { 
 	myvar = data; // the contents of 'data' are now in memory twice 
 } // now 'data' is freed, even though llGetFreeMemory() won't notice

and still the same result. Perhaps I am not understanding your response? Are you saying that; myvar (empty variable) and myvar (with data) are both in memory now?

Thanks
=R

Masakazu Kojima

ケロ

Join date: 23 Apr 2004

Posts: 232

01-31-2006 14:58

myvar = data;

After this, 'data' and 'myvar' are both in memory with separate copies of the same data. So if data contained 5000 bytes, you would be using 10000 bytes until the end of the event handler, when data is freed, or (maybe) until you clear 'data' yourself. Either way, llGetFreeMemory() would from then on report the amount of free memory there was when 'data' was still in memory.

Osgeld Barmy

Registered User

Join date: 22 Mar 2005

Posts: 3,336

01-31-2006 15:15

yep

Rizado DaSilva

Merchant

Join date: 12 May 2005

Posts: 30

01-31-2006 16:41

Grrr... yes, I see that now, I guess my head was, err, ne'er mind that... I totally missed it, but makes sense. LL has GOT to start upgrading this stuff.

Thanks for the explaination.

=R

Mildred Davison

Registered User

Join date: 17 Nov 2005

Posts: 1

02-01-2006 08:36

From: Masakazu Kojima

myvar = data;

After this, 'data' and 'myvar' are both in memory with separate copies of the same data. So if data contained 5000 bytes, you would be using 10000 bytes until the end of the event handler, when data is freed, or (maybe) until you clear 'data' yourself. Either way, llGetFreeMemory() would from then on report the amount of free memory there was when 'data' was still in memory.

Except that lines are a maximum 256 bytes...

dataserver / notecard question
Rizado DaSilva Merchant Join date: 12 May 2005 Posts: 30	01-31-2006 12:51 Ok, I am playing with a config file for reading in canfiguration variables into a script. What I have noticed is that when I hard code the variables into the script I have like 2000 bytes left when it is finished loading the script. When I use a dataserver to read the notecard and get the exact same variables, I have about 700 bytes left? Anyone shed some light on this? Thanks, =R
Masakazu Kojima ケロ Join date: 23 Apr 2004 Posts: 232	01-31-2006 13:26 From: someone http://secondlife.com/badgeo/wakka.php?wakka=llGetFreeMemory llGetFreeMemory will not take into account memory that has been freed, resulting in far less free memory reported than actually exists. What it will report is the historic free memory--the smallest free memory up until that point. CODE dataserver(key qid, string data) { myvar = data; // the contents of 'data' are now in memory twice } // now 'data' is freed, even though llGetFreeMemory() won't notice
Rizado DaSilva Merchant Join date: 12 May 2005 Posts: 30	01-31-2006 14:13 CODE dataserver(key qid, string data) { myvar = data; // the contents of 'data' are now in memory twice } // now 'data' is freed, even though llGetFreeMemory() won't notice While I would agree with that, after I noticed this I created two seperate scripts, the first which loaded the global variables and no notecard system at all... CODE string myvar = "a bunch of text"; And the second which loaded blank global variables and then updated them via the notecard... CODE string myvar; dataserver(key qid, string data) { myvar = data; // the contents of 'data' are now in memory twice } // now 'data' is freed, even though llGetFreeMemory() won't notice and still the same result. Perhaps I am not understanding your response? Are you saying that; myvar (empty variable) and myvar (with data) are both in memory now? Thanks =R
Masakazu Kojima ケロ Join date: 23 Apr 2004 Posts: 232	01-31-2006 14:58 myvar = data; After this, 'data' and 'myvar' are both in memory with separate copies of the same data. So if data contained 5000 bytes, you would be using 10000 bytes until the end of the event handler, when data is freed, or (maybe) until you clear 'data' yourself. Either way, llGetFreeMemory() would from then on report the amount of free memory there was when 'data' was still in memory.
Osgeld Barmy Registered User Join date: 22 Mar 2005 Posts: 3,336	01-31-2006 15:15 yep
Rizado DaSilva Merchant Join date: 12 May 2005 Posts: 30	01-31-2006 16:41 Grrr... yes, I see that now, I guess my head was, err, ne'er mind that... I totally missed it, but makes sense. LL has GOT to start upgrading this stuff. Thanks for the explaination. =R
Mildred Davison Registered User Join date: 17 Nov 2005 Posts: 1	02-01-2006 08:36 From: Masakazu Kojima myvar = data; After this, 'data' and 'myvar' are both in memory with separate copies of the same data. So if data contained 5000 bytes, you would be using 10000 bytes until the end of the event handler, when data is freed, or (maybe) until you clear 'data' yourself. Either way, llGetFreeMemory() would from then on report the amount of free memory there was when 'data' was still in memory. Except that lines are a maximum 256 bytes...

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dataserver / notecard question