Re: Use PROT_NONE for unused virtual stack memory

Jeroen Demeyer on Mon, 03 Oct 2016 22:14:33 +0200

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Re: Use PROT_NONE for unused virtual stack memory

To: pari-dev@pari.math.u-bordeaux.fr
Subject: Re: Use PROT_NONE for unused virtual stack memory
From: Jeroen Demeyer <jdemeyer@cage.ugent.be>
Date: Mon, 3 Oct 2016 22:14:26 +0200
Delivery-date: Mon, 03 Oct 2016 22:14:33 +0200
In-reply-to: <20161003182149.GA16980@yellowpig>
References: <57E61E38.6050900@cage.ugent.be> <20160929154655.GE22374@yellowpig> <57F27395.2070003@cage.ugent.be> <20161003182149.GA16980@yellowpig>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0

On 2016-10-03 20:21, Bill Allombert wrote:

What linux kernel version did you test ?


3.17.7-gentoo

And how did you test it ?

With vm.overcommit == 2, I can now set parisizemax to some largefraction of total memory (say 25% of physical RAM + swap) for many PARIprocesses at the same time. With the current PARI master, this is notpossible.



Jeroen.

References:
- Re: Use PROT_NONE for unused virtual stack memory
  - From: Jeroen Demeyer <jdemeyer@cage.ugent.be>
- Re: Use PROT_NONE for unused virtual stack memory
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>

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