hi,
I have a software which uses huge STL data structures. Since STL
retains its mempool, the memory that is used is not given back to the
system.
Now consider a simple class:
MyClass *c1=new MyClass;
Suppose I do a million of these too, then it takes up all of the memory
left over.
Two questions:
1. Can I use STL's memory pool to allocate memory for this class as
well - Is there a piece of code I can look to see?
2. How do I **verify** that I am using STL's memory pool - I have
valgrind at my disposal. I dont want to make a mistake and think
everything is working hunky dory.
Thanks in advance
-Sandeep
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
[ comp.lang.c++.m oderated. First time posters: Do this! ] 1  2014 
Sandeep Srinivasa wrote: I have a software which uses huge STL data structures. Since STL
retains its mempool, the memory that is used is not given back to the
system.
I think you're referring to a particular implementation of STL, since
there is no requirement in the C++ Standard to hold on to memory. You'll
have to ask the folks who support your implementation.
--
Pete Becker
Roundhouse Consulting, Ltd.
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
[ comp.lang.c++.m oderated. First time posters: Do this! ] This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Hanzo |
last post by:
I'm currently fighting my way through an example of Single-Threaded
Memory Pooling in a chapter of the Efficient C++ book by Dov Bulka &
David Mayhew. Unfortuantely, I'm starting to get code that won't
compile and I am having a hard time finding an online errata or
contacting the authors.
For those familiar with the book, Chapter 6 covers rolling your own
memory manager. The first section, dealing with a Specialized Rational
Memory...
|
by: EMW |
last post by:
I have one form which is my main form and has 4 option buttons and two
regular buttons, one for saving and the other for canceling the program.
When the user select an option button, a new form is opened and he can fill
in some fields by using a context menu (standard answers).
When he is finished, tapping on the save button, the form is hidden and the
user is returned to the main form, where an image is drawn that the form is
filled in...
|
by: Alex |
last post by:
Acc97
on a subform I have a series of Combo box's which because of my
inability to think ahead! I have had to use a field on the last one
which I did not intend to use, and bound to it. Therefore, I have a
two column drop down with the first field showing a Ref No. but the
second column showing me what I really want but I can't tap into it "
So near yet so far"
|
by: EMW |
last post by:
I am busy with a program for my pocket pc. but since it is still compact
famework, I'll post this here too, because I'm very much in need for some
help with this:
I have one form which is my main form and has 4 option buttons and two
regular buttons, one for saving and the other for canceling the program.
When the user select an option button, a new form is opened and he can fill
|
by: Michelle |
last post by:
Hi, I am new it vb.net and am looking at writing for touch screens as one of
my clients wants their application written for touch screens.
I'm sure someone that done this before. Are there links I can go to to find
out what's involved, touch screen software, etc or your actual experiences
that you are willing to share, which is better than a document, I would be
most grateful.
I think it will be a fun project and would like as much...
| | |
by: Ali |
last post by:
My problem is quite similar to Item 10 of Effective C++ (Scott
Meyers):
http://www.awprofessional.com/content/downloads/meyerscddemo/DEMO/EC/EI10_FR.HTM
I have Airplane objects declared in a namespace myNamespace in a file
main.cpp, the memPool is initialized correctly. Everything works fine
on Win32 platform with MinGW GCC 3.4.4, Borland C++ Builder 6, Visual
Studio 2003 and Visual Studio 2005.
|
by: =?ISO-8859-1?Q?Tor_Erik_S=F8nvisen?= |
last post by:
Hi,
Does anyone know how to interrupt the lookup of an integer value? I
know I need to subclass int, since builtin types can't be altered
directly...
Below is how far I've come... What I want is to tap into the access of
instance i's value 1...
def __init__(self, *a, **k):
|
by: Rahul |
last post by:
Hi Everyone,
I have the following code and i'm able to invoke the destructor
explicitly but not the constructor. and i get a compile time error
when i invoke the constructor, why is this so?
class Trial
{
public: Trial()
{
|
by: Mike |
last post by:
Hi,
I have a simple "memPool' class that simply maintains a linked list of
chunks from which allocation requests are made. The whole thing is
deleted all at once upon destruction. So far, so good.
Then I tried to make an allocator for this and use it with std::list
with no success. I modeled my allocator code from gcc's
new_allocator.h. I modified the allocate() and deallocate() functions
and copy constructors, and added a...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| | |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
