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Date: Fri, 24 Aug 2012 19:37:49 +0200
From: Luca Barbato <>
Subject: Re: build musl with clang

On 8/23/12 7:55 PM, Rich Felker wrote:
> for (i=0; i<n; i++) if (mem[i]) mem[i] = 0;
> I am not willing to remove the if, because it serves a valuable
> purpose: it avoids writing to pages that are already all-zero, which
> in turn reduces swap pressure/dirty pages.

Are you sure absolutely sure it does have the intended effect?


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