Article:		Knowing When to Let Go: Better Living Through Memory Management
Subject:		What about preallocated memory?
Date:		2003-06-11 16:59:28
From:		anonymous2
Response to: What about preallocated memory?
However it is also important to realise that malloc and free are not system calls. This is important because while brk/anon-mmap are relatively expensive, malloc and free are signifigantly cheaper. In most cases you are better off tuning your allocator then avoiding dynamic allocation. There are problems that require pre-allocation, but they are few, and far between.

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• Re: What about preallocated memory?
  2003-06-11 22:01:17  iapole [View]
  
  
  Significantly cheaper, yes, but still expensive from some perspectives. A lot of my recent coding has been done with OpenGL, and I anticipate a point in the future where allocations will be the major bottleneck. It may be farther off than I think, of course, and I'll wait till then to optimize... but it's still a fun thing to know how to do!