Quantcast
Channel: CODE: Sequoia » Optimization
Browsing latest articles
Browse All 5 View Live

Image may be NSFW.
Clik here to view.

Optimization with C++ Template

C++ template can be used for enabling optimization. For example, you have a function: void foo(int x){ // ... int v = n / x; // slow division operation // ... } And call it. foo(16); Let’s assume foo...

View Article



Image may be NSFW.
Clik here to view.

Non-alignment integer access performance

When you define a structure like this, the integer field is allocated not just after the byte field, but aligned to 4 byte boundary. struct foo{  unsigned char v1;  unsigned int v2;}; It’s because x86...

View Article

Image may be NSFW.
Clik here to view.

Win32 native monitor is much faster than boost

Windows Vista (finally!) introduced APIs to build a monitor object.http://msdn2.microsoft.com/en-us/library/ms683469.aspx So, how’s performance? Let’s benchmark it. I wrote two bounded FIFO classes....

View Article

Image may be NSFW.
Clik here to view.

Use IO Completion port to implement thread safe FIFO

Here is an example to implement thread safe FIFO using IO Completion port as a queue implementation. The implementation assumes there is only on thread pushing and another thread pulling. /*! A thread...

View Article

Image may be NSFW.
Clik here to view.

Condition variables performance of boost, Win32, and the C++11 standard library

About four years ago, I wrote the condition variables in Win32 API was much faster than boost threading library implementation. Since then the boost threading library has been rewritten and C++11 has...

View Article

Browsing latest articles
Browse All 5 View Live




Latest Images