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Mac
Professional Member
Joined: 08 Jul 2000
Posts: 1585
Location: Oklahoma USA
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 Posted: Tue Jan 08, 2002 11:05 pm Post subject: Memory Leak in LIST SAVEFILE... |
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Just curious. Does anyone know if SADE fixed the SAVEFILE
Memory leak in VDS4 updates yet?
Here's a program to test it with a 40k file (SAVEFILE works OK
up to about 20k):
| Code: |
rem -- A test program to show SAVEFILE memory leak --
rem -- Loads Tlist with approx 40k of data and saves as mem_leak.dat
rem -- every 5 seconds. Shows available free memory at start of
rem -- operation, and monitors current free memory every second.
OPTION SCALE, 96
DIALOG CREATE,"SAVEFILE Memory leak Test",-1,-1,385,160
DIALOG ADD,TEXT,CurrentStatus,8,5,,,""
DIALOG ADD,TEXT,StartStatus,29,5,,,"Press 'Start' button to begin..."
DIALOG ADD,BUTTON,Start,5,300,80,20
DIALOG ADD,BUTTON,Stop,26,300,80,20
DIALOG ADD,LIST,Tlist,50,5,375,100,
DIALOG SHOW
rem -- Put horizontal slider on list --
%x = @sendmsg(@winexists(~Tlist),$0194,2000,0)
rem -- Creat a list of useless info --
%x = 0
REPEAT
LIST ADD, Tlist, @datetime(yyyy/mm/dd hh:nn am/pm) This is an example program to show the memory leak in VDS SAVEFILE operations.
%x = @succ(%x)
UNTIL @greater(%x, 400)
%x = 0
:EVLOOP
%x = @succ(%x)
WAIT 1, EVENT
goto @event()
:TIMER
DIALOG SET, CurrentStatus, @datetime(hh:nn:ss am/pm)" Current Free Memory - "@sysinfo(FREEMEM) kb
rem -- Check every 5 seconds --
if @greater(%x, 5)
if @equal(%s, "start")
DIALOG SET, CurrentStatus, @datetime(hh:nn:ss am/pm)" Current Free Memory - "@sysinfo(FREEMEM) kb" Saving..."
LIST SAVEFILE, Tlist, mem_leak.dat
end
%x = 0
end
goto EVLOOP
:StartBUTTON
%s = "start"
DIALOG SET, StartStatus, "Free Memory At "@datetime(hh:nn:ss am/pm)" Start - "@sysinfo(FREEMEM) kb
goto EVLOOP
:StopBUTTON
%s = "stop"
DIALOG SET, StartStatus, "Press 'Start' button to begin..."
goto EVLOOP
:CLOSE
EXIT
STOP
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_________________
VDSug.dll does file IO, check/disable menu items,
non-VDS dlls, draw functions and more...
Free download (30k dll size) at:
http://www.vdsworld.com/download.php?id=361
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Tommy
Admin Team
Joined: 16 Nov 2002
Posts: 746
Location: The Netherlands
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| Posted: Tue Jan 08, 2002 11:23 pm Post subject: |
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It still seems to leak, according to your script approx. 5 MB in 10 minutes. I think it's doubtful how meaningful such a result is though.
Tommy |
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Mac
Professional Member
Joined: 08 Jul 2000
Posts: 1585
Location: Oklahoma USA
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| Posted: Tue Jan 08, 2002 11:28 pm Post subject: |
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It's real meaningful if your program constantly updates a log.
That's what prompted me to hunt down the problem in VDS3. 
_________________
VDSug.dll does file IO, check/disable menu items,
non-VDS dlls, draw functions and more...
Free download (30k dll size) at:
http://www.vdsworld.com/download.php?id=361
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Tommy
Admin Team
Joined: 16 Nov 2002
Posts: 746
Location: The Netherlands
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| Posted: Wed Jan 09, 2002 12:31 am Post subject: |
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| Shouldn't you watch the amount of used/free memory in the swap file too then? Thinks may be moved over from and towards there... |
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Mac
Professional Member
Joined: 08 Jul 2000
Posts: 1585
Location: Oklahoma USA
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| Posted: Wed Jan 09, 2002 12:44 am Post subject: |
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__________________________________________________________________________________________________________________________
I've checked the size of the swap file and it shows zero
while the test program is running. I don't think Windows
should access it as long as there's plenty of free RAM.
My understanding is that the swap file is used last, because
the disk access speed is so much slower than RAM.
We're only using a 40k file here...
_________________
VDSug.dll does file IO, check/disable menu items,
non-VDS dlls, draw functions and more...
Free download (30k dll size) at:
http://www.vdsworld.com/download.php?id=361
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webdaddy
Contributor
Joined: 14 Nov 2004
Posts: 151
Location: Raleigh NC
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| Posted: Fri May 09, 2008 6:21 pm Post subject: Log Files |
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I ran into that before as well and had to reopen a new log BEFORE getting to the point as where A) my application came to a crawl and B) the system became unstable. I save the file and close the list and start again. I have had a few of my apps running in production at a company for months without a reboot not. Before it would need to be rebooted every 2 or 3 days.
WD
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K Wetzel
Programming - Technology - Communications
"The Home of the SLC Security Console"
SLC now available for Linux... |
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JerryDee
Contributor
Joined: 19 Oct 2005
Posts: 53
Location: Czech Republic
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| Posted: Sat May 10, 2008 8:42 pm Post subject: |
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Ooooch, are you tracking six years old trace ?!?
_________________
Jerry
(VDS 4,5,6 Pro | V-Setup 3) |
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