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Memory Limit for Visual Studio 2005???

It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my system
so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?

Dec 22 '06 #1
81 4584
Hello Peter,

Memmory is allocated by blocks 32/64 mb, so if your GC is fragmented FW may
not found free space to allocate aditional block, albeit you can have enough
memmory

POIt looks like System::Collect ions::Generic.L ist throws and
POOUT_OF_MEMORY exception whenever memory allocated exceeds 256 MB. I
POhave 1024 MB on my system so I am not even out of physical RAM, much
POless virtual memory.
PO>
POAre other people experiencing this same problem?
PO>
---
WBR,
Michael Nemtsev [C# MVP] :: blog: http://spaces.live.com/laflour

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo
Dec 22 '06 #2
I checked in task manager and my peek memory usage for VS2005 is 288,060K
but then I have 2Gigs on this system.

Regards,
John

"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my
system so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?

Dec 22 '06 #3
Hi,

What kind of project is this?

IIRC a web app has a limit refering to the amount of memory it can consume
--
Ignacio Machin
machin AT laceupsolutions com

"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my
system so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?

Dec 22 '06 #4
It may be a Visual Studio Express limitation

"Michael Nemtsev" <ne*****@msn.co mwrote in message
news:a2******** *************** ****@msnews.mic rosoft.com...
Hello Peter,

Memmory is allocated by blocks 32/64 mb, so if your GC is fragmented FW may
not found free space to allocate aditional block, albeit you can have enough
memmory

POIt looks like System::Collect ions::Generic.L ist throws and
POOUT_OF_MEMORY exception whenever memory allocated exceeds 256 MB. I
POhave 1024 MB on my system so I am not even out of physical RAM, much
POless virtual memory.
POPOAre other people experiencing this same problem?
PO---
WBR,
Michael Nemtsev [C# MVP] :: blog: http://spaces.live.com/laflour

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo


Dec 22 '06 #5
Try and add one gig of Bytes to a List<Byteand see if it doesn't abnormally
terminate.

"John J. Hughes II" <in*****@nowher e.comwrote in message
news:Oy******** ******@TK2MSFTN GP04.phx.gbl...
>I checked in task manager and my peek memory usage for VS2005 is 288,060K but
then I have 2Gigs on this system.

Regards,
John

"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
>It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my
system so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?


Dec 22 '06 #6
Its a regular desktop windows project under Visual Studio 2005 Express.

"Ignacio Machin ( .NET/ C# MVP )" <machin TA laceupsolutions .comwrote in
message news:%2******** *******@TK2MSFT NGP06.phx.gbl.. .
Hi,

What kind of project is this?

IIRC a web app has a limit refering to the amount of memory it can consume
--
Ignacio Machin
machin AT laceupsolutions com

"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
>It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my
system so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?


Dec 22 '06 #7
"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY exception
whenever memory allocated exceeds 256 MB. I have 1024 MB on my system so I am not even out
of physical RAM, much less virtual memory.

Are other people experiencing this same problem?
Why do you mention VS2005? This is thrown at program run-time, right? The run-time
limitation is 2GB for a CLR object type, that means that your List can only hold at most
2GB, however, due heap fragmentation of a 32 bit process, the maximum size of a single
object is limited to something from 1.2GB up to 1.8GB depending on the type of OS and
application. A simple console application should be able to allocate a single List of
~1.6GB or more , Windows Forms will top at ~1.2GB for the largest List (or array or
whatever).

Willy.


Dec 22 '06 #8

"Willy Denoyette [MVP]" <wi************ *@telenet.bewro te in message
news:%2******** ********@TK2MSF TNGP06.phx.gbl. ..
"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******** ***********@new sfe12.phx...
>It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY
exception whenever memory allocated exceeds 256 MB. I have 1024 MB on my
system so I am not even out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?

Why do you mention VS2005? This is thrown at program run-time, right? The
run-time limitation is 2GB for a CLR object type, that means that your List
can only hold at most 2GB, however, due heap fragmentation of a 32 bit
process, the maximum size of a single object is limited to something from
1.2GB up to 1.8GB depending on the type of OS and application. A simple
console application should be able to allocate a single List of ~1.6GB or more
, Windows Forms will top at ~1.2GB for the largest List (or array or
whatever).

Willy.
If you have actually tested this and thus know that it works empirically rather
than theoretically, then this must be a limitation of Visual Studio 2005
Express. I could not get Visual Studio 2005 Express to allocate more than 256 MB
without abnormally terminating.

I was very pleased with its relative performance to Native Code Visual C++ 6.0.
It was something like 50% faster on every test.
>

Dec 22 '06 #9
"Peter Olcott" <No****@SeeScre en.comwrote in message
news:HP******** ************@ne wsfe07.phx...
>
"Willy Denoyette [MVP]" <wi************ *@telenet.bewro te in message
news:%2******** ********@TK2MSF TNGP06.phx.gbl. ..
>"Peter Olcott" <No****@SeeScre en.comwrote in message
news:RK******* ************@ne wsfe12.phx...
>>It looks like System::Collect ions::Generic.L ist throws and OUT_OF_MEMORY exception
whenever memory allocated exceeds 256 MB. I have 1024 MB on my system so I am not even
out of physical RAM, much less virtual memory.

Are other people experiencing this same problem?

Why do you mention VS2005? This is thrown at program run-time, right? The run-time
limitation is 2GB for a CLR object type, that means that your List can only hold at most
2GB, however, due heap fragmentation of a 32 bit process, the maximum size of a single
object is limited to something from 1.2GB up to 1.8GB depending on the type of OS and
application. A simple console application should be able to allocate a single List of
~1.6GB or more , Windows Forms will top at ~1.2GB for the largest List (or array or
whatever).

Willy.

If you have actually tested this and thus know that it works empirically rather than
theoretically, then this must be a limitation of Visual Studio 2005 Express. I could not
get Visual Studio 2005 Express to allocate more than 256 MB without abnormally
terminating.

I was very pleased with its relative performance to Native Code Visual C++ 6.0. It was
something like 50% faster on every test.
No, once again this is run-time related VS does (and can't impose such restrictions) , try
to compile and run your code from the command-line prompt if you do't trust me.
Keep in mind that when you don't pre-allocate the List, you will end with a List doubling
it's size each time it get's filled to the max. capacity, so the OOM exception might get
thrown when no free *contiguous* block of ~512MB can be found in excess of the already
allocated ~256MB.

Willy.

Willy.
Dec 22 '06 #10

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