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Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable

From: Siddhesh Poyarekar <siddhesh at redhat dot com>
To: KOSAKI Motohiro <kosaki dot motohiro at gmail dot com>
Cc: Rich Felker <dalias at aerifal dot cx>, libc-alpha at sourceware dot org
Date: Tue, 31 Jul 2012 11:40:39 +0530
Subject: Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
References: <20120720212303.GT544@brightrain.aerifal.cx><20120720214753.639312C0DF@topped-with-meat.com><20120720223800.GB26330@sunsite.ms.mff.cuni.cz><20120720224417.E8BEF2C0CA@topped-with-meat.com><20120721061814.GC26330@sunsite.ms.mff.cuni.cz><20120721133217.GY544@brightrain.aerifal.cx><20120725183634.E0C5F2C0B1@topped-with-meat.com><CAHGf_=qCMy6K1MD4miN65GkMSumYTtH23xoFrfmCuh=WjybAVA@mail.gmail.com><20120730230006.355f9b67@spoyarek><5016D012.5000101@gmail.com><20120730191758.GX544@brightrain.aerifal.cx><CAHGf_=rRm4B4YCZKgos5hWN_QTYV76fAxcegO7D3x=4_A88Rvw@mail.gmail.com>

On Tue, 31 Jul 2012 01:24:14 -0400, KOSAKI wrote:
> but..
> Why do we need PROT_NONE? just for /proc/maps?
> 

For me, yes, which is why it is not worth doing if there is a
performance hit. I'll actually be testing mmap vs madvise vs
madvise+mprotect to get a perspective of how things are right now.

Regards,
Siddhesh

References:
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Rich Felker
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Roland McGrath
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Jakub Jelinek
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Roland McGrath
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Jakub Jelinek
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Rich Felker
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Roland McGrath
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: KOSAKI Motohiro
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Siddhesh Poyarekar
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: KOSAKI Motohiro
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: Rich Felker
- Re: [PATCH][RFC] Allow explicit shrinking of arena heaps using anenvironment variable
  - From: KOSAKI Motohiro

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