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From: "Frank J. Lhota" <NOSPAM.lhota@adarose.com>
Subject: Re: many exceptions cause memory leak?
Date: Fri, 21 Oct 2005 15:38:06 GMT
Date: 2005-10-21T15:38:06+00:00	[thread overview]
Message-ID: <yX76f.7$dW6.4@trndny09> (raw)
In-Reply-To: <djaell$395$1@lc03.rz.uni-jena.de>

Christopher Broeg wrote:
> Hi,
> 
> I am running some numeric code in ADA95 using GNAT Academic edition. 
> When negative values occur or the integration routine fails exceptions 
> are raised and propagated. This works fine.
> 
> Surprisingly, the memory usage increases from an initial ~40MB to 100MB 
> and more during one day of execution. the memory usage shouldn't 
> increase in my eyes. Is it possible that raising many exceptions 
> coninues to use up some memory?
> 
> thanks for your ideas,
> 
> Chris

Which platform is this running on? That could be helpful in determining 
the cause of your problem.

On Windows XP, I wrote a GNAT GPL application that raised and handled a 
million exception occurrences. This application also does a call to the 
Win32 API function GlobalMemoryStatus both before and after handling a 
million exception occurrences. The memory status before and after 
handling these exceptions was virtually the same. This seems to indicate 
that on XP at least, GNAT exceptions do *not* leak memory.

-- 
"All things extant in this world,
Gods of Heaven, gods of Earth,
Let everything be as it should be;
Thus shall it be!"
- Magical chant from "Magical Shopping Arcade Abenobashi"

"Drizzle, Drazzle, Drozzle, Drome,
Time for the this one to come home!"
- Mr. Lizard from "Tutor Turtle"



  reply	other threads:[~2005-10-21 15:38 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-21 10:07 many exceptions cause memory leak? Christopher Broeg
2005-10-21 15:38 ` Frank J. Lhota [this message]
2005-10-21 17:59   ` Robert Klungle
2005-10-21 18:13     ` Ed Falis
2005-10-24 11:29 ` Christopher Broeg
2005-10-24 20:00   ` Simon Wright
2005-10-25  7:32     ` Christopher Broeg
2005-10-25  7:42       ` Christopher Broeg
2005-10-25 12:34         ` Alex R. Mosteo
2005-10-25 12:55           ` Alex R. Mosteo
2005-10-25 18:50         ` Wiljan Derks
2005-10-26 10:56           ` Christopher Broeg
2005-10-25 13:09       ` Frank J. Lhota
2005-10-25 14:09         ` Christopher Broeg
2005-10-24 21:27   ` Andreas Schulz
2005-10-26 12:45 ` Christopher Broeg
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