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Re: Is there a way to return memory to OS?
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From: |
Petter Reinholdtsen |
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Subject: |
Re: Is there a way to return memory to OS? |
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Date: |
Thu, 21 Apr 2005 08:56:02 +0200 |
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User-agent: |
Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (usg-unix-v) |
[Hao Xia]
> I have some temporary data has to be released and give the memory
> back to OS.
For large memory blocks, the GNU libc malloc() will use mmap to get
the memory from the operating system, and this memory will be given
back to the operating system when free() is called.
The GNU libc malloc() is based on code from Doug Lea. You might want
to read his articles on memory management.