Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 21 Feb 2014 18:13:19 -0500
From:      Jung-uk Kim <jkim@FreeBSD.org>
To:        attilio@FreeBSD.org, Craig Rodrigues <rodrigc@freebsd.org>
Cc:        Dmitry Sivachenko <trtrmitya@gmail.com>, Xin Li <delphij@freebsd.org>, FreeBSD Security Team <secteam@freebsd.org>, FreeBSD Release Engineering Team <re@freebsd.org>, "freebsd-java@freebsd.org" <freebsd-java@freebsd.org>
Subject:   Re: vm.pmap.pcid_enabled="0" seems to eliminate Java/Jenkins crashing problems in FBSD 10
Message-ID:  <5307DD8F.5020501@FreeBSD.org>
In-Reply-To: <CAJ-FndBKMg9NVm=qn2hmfEbFH-ZVPFr92gVHz3MkbgVXK=xpug@mail.gmail.com>
References:  <CAG=rPVeZGSs5_rRpRgdoSNK988TYY%2BBK76qeprWcR1JC64ekKQ@mail.gmail.com> <CAJ-FndBKMg9NVm=qn2hmfEbFH-ZVPFr92gVHz3MkbgVXK=xpug@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 2014-02-21 17:54:58 -0500, Attilio Rao wrote:
> On Thu, Feb 20, 2014 at 5:45 AM, Craig Rodrigues
> <rodrigc@freebsd.org> wrote:
>> Hi,
>> 
>> I am followed Jung-uk Kim's advice here:
>> 
>> http://lists.freebsd.org/pipermail/freebsd-java/2014-February/010582.html
>>
>>
>>
>> 
and configured the one of the FreeBSD stable/10 VM's (running at r261732)
>> that I have running under BHyve with the following in
>> /boot/loader.conf:
>> 
>> vm.pmap.pcid_enabled="0"
> 
> IIRC PCID had to be already disabled by default as we saw it was 
> slower in the real world or I'm missing something?

No, it is enabled by default on all 10+ AFAICT.

http://svnweb.freebsd.org/base/head/sys/amd64/amd64/pmap.c?annotate=261781#l370
http://svnweb.freebsd.org/base/stable/10/sys/amd64/amd64/pmap.c?annotate=260467#l370
http://svnweb.freebsd.org/base/releng/10.0/sys/amd64/amd64/pmap.c?annotate=259065#l370

Jung-uk Kim
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (FreeBSD)

iQEcBAEBAgAGBQJTB92PAAoJEHyflib82/FGt1kH/j+xmZzvuisHwqhV/iyWwqTv
J5P4pYUp+yFcg6B4riBcpxlmZ5ZG2KCSK5NJZVZXX0p6UWW1MLeZc8siZPaCPdg8
I3DtkIQeZEjoFxtcP96K2IzDZBDzw5d8Kh4kZeFXXSJKX6LIW4XJVmGdhgoBN5Cd
ExIcOS+J3dY9s3QCeb9lpHsx6BWW6ziIVcALRmYI/opbTGbSW7pvbd+BX8WP2TZs
BH+SCLNkciLfNnFhm+nbZ+r3nIRB7/G+zlFTPzFYgQhATgGA8KRR1G6HPF0Zlcmm
LNssZSUGyJmM0ZA2TPbQyd/bq9kYzKcPL2k8zVvMdqk2Rp1AuPMF0inj4OmR9eM=
=Sv2D
-----END PGP SIGNATURE-----



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5307DD8F.5020501>