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Date: Sat, 14 Sep 2013 17:06:17 -0700
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Subject: Re: Patch for Cross-Reference Phandles
From: Adrian Chadd <adrian@freebsd.org>
To: Eitan Adler <lists@eitanadler.com>
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Cc: freebsd-sparc64 <freebsd-sparc64@freebsd.org>,
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 Ian Lepore <ian@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
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On 14 September 2013 17:04, Eitan Adler <lists@eitanadler.com> wrote:


> With an explicit zeroing:
>
>    text    data     bss     dec     hex filename
>    1572     484      16 2072     818 a.out
>
> Without:
>
>    text    data     bss     dec     hex filename
>    1572     484      16 2072     818 a.out
>

This is exactly the opposite of what I see with kernel code though. Eg,
kern_umtx.c and it's very large up-front allocated array. Same as the
upfront array of KTR entries for early boot tracing.

Try bumping it to something stupid like 65536 and retest?

Is this a gcc-4.2 versus clang difference?

Thanks,



-adrian