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by: OPQ |
last post by:
Hi all,
I'd happy to have you share some thougts about ultimate optimisations
on those 2 topics:
(1)- adding one caractere at the end of a string (may be long)
(2)- in a dict mapping a key to a list of int, remove every entrie
where the list of int have of length < 2
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by: Simon Elliott |
last post by:
What optimisation do compilers typically provide when passing STL
containers around?
For example, if I do something like this:
struct Tbloggs
{
std::string s1;
};
typedef std::vector<Tbloggs> TbloggsList;
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by: simonwittber |
last post by:
Hello People.
I've have a very tight inner loop (in a game app, so every millisecond
counts) which I have optimised below:
def loop(self):
self_pool = self.pool
self_call_exit_funcs = self.call_exit_funcs
self_pool_popleft = self.pool.popleft
self_pool_append = self.pool.append
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by: EC-AKD |
last post by:
Hi All,
I am new to the concept of optimising codes in C. I was wondering if
C level inlining of code is any way comparable to macros. I believe
that inlining is equivalent to writing macros. However I had this
strange feeling if I should go for macros wherever necessary instead
of inlining the codes.
In my project, I have to use basic operations like add and sub many
times. So I initially inlined them and found a lot of optimisation.
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by: Ennixo |
last post by:
hi,
do you know where i can find some ebooks or websites talking about C#
optimisation ?
for exemple, i just learned that ++i is faster than i++. i would like to
know more about the things that can make code faster than fast.
thank you.
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by: Jon Maz |
last post by:
Hi,
I'm facing a code-optimisation issue on an asp.net/vb.net/SQL Server 2000
project. A web page containing not much more than 3 DropDownLists is taking
nigh on 6 seconds to load, because each ddl opens up a separate connection
to the DB, pulls out its data, and closes its own connection before the next
ddl repeats the process.
The code to handle each DDL's connection to the DB is packaged in an object
(presentation-layer code...
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by: Lee Harr |
last post by:
I have a database where I remove the schema public. When I
try to use the createlang script, it fails like this ...
>createdb foo
CREATE DATABASE
>psql foo -c "select version()"
version
---------------------------------------------------------------------
PostgreSQL 7.4.1 on i386-portbld-freebsd4.9, compiled by GCC 2.95.4
(1 row)
|
by: David Welch |
last post by:
Hi,
I have a bit of code where I am relying on empty base member
optimisation. The bit of code is below:
template<typename Enum>
struct EncodePrefix
{
template<Enum e>
struct Apply
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by: grid |
last post by:
Hi,
I was exploring the affect of cache on program
performance/optimisation.Is it the compilers responsibility only to
consider this kind of optimisation or the programmer can do his bit in
this case ?
Reading through the "Expert C Programming" text,it mentions how the
below program can be efficient taking the cache details into accont.
The below program can be executed using the two versions of copy
alternatively and running the time...
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by: special_dragonfly |
last post by:
Hello,
I know this might be a little cheeky, and if it is, please say, but I need a
little hand optimising some code. For the simple reason that this is
'company' code and I have no idea what I'm allowed to release and not as the
case may be I've changed anything that could give an indication of the
company - if that makes any sense...
for the code below:
text_buffer is a single record from an XML stream. I can't read in the
entire XML...
|
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...
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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,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
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...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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