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Re: pthread_exit behavior from main

From: Siddhesh Poyarekar <siddhesh dot poyarekar at gmail dot com>
To: Godmar Back <godmar at gmail dot com>
Cc: "Carlos O'Donell" <carlos at systemhalted dot org>, Bharath Ramesh <bramesh at vt dot edu>, libc-help at sourceware dot org
Date: Fri, 5 Oct 2012 07:45:34 +0530
Subject: Re: pthread_exit behavior from main
References: <20121004220540.GI3182@vt.edu><CAE2sS1gGmQc=oGe29TQ2VDyoihM90s7Z_K6Zg3LGdTrn0T_75g@mail.gmail.com><CAB4+JY+tUXDQX8+vhJ_S-_Jq_GynNMoKOfMZ3bTgP+4juXh1Fw@mail.gmail.com>

(Sorry, accidentally did a Reply instead of Reply All)

On 5 October 2012 07:11, Godmar Back <godmar@gmail.com> wrote:
> Just out of curiosity, why do you madvise it with MADV_DONTNEED rather
> than munmapping it outright?

That's a performance tweak.  The pthread library caches a specific
number of stacks so that they can be reused by new threads, thus
avoiding the need for repeated syscalls.

-- 
http://siddhesh.in

Follow-Ups:
- Re: pthread_exit behavior from main
  - From: Carlos O'Donell

References:
- pthread_exit behavior from main
  - From: Bharath Ramesh
- Re: pthread_exit behavior from main
  - From: Carlos O'Donell
- Re: pthread_exit behavior from main
  - From: Godmar Back

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