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Re: free() does not physically trim/reclaim memory

From: Florian Weimer <fweimer at redhat dot com>
To: shuxin yang <shuxinyang dot oss at gmail dot com>, libc-help at sourceware dot org
Date: Fri, 2 Sep 2016 13:44:52 +0200
Subject: Re: free() does not physically trim/reclaim memory
Authentication-results: sourceware.org; auth=none
References: <57C8724B.3020707@gmail.com>

On 09/01/2016 08:24 PM, shuxin yang wrote:

    In my application, I need to call mmap() a block right after BSS in
order to prevent heap from growing.

You cannot rely that this has any observable effect. Why do you need todo this?


Thanks,
Florian

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