Date: Tue, 5 Feb 2013 19:18:13 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Neel Natu <neelnatu@gmail.com> Cc: alc@freebsd.org, davide@freebsd.org, hackers@freebsd.org, avg@freebsd.org, rank1seeker@gmail.com Subject: Re: dynamically calculating NKPT [was: Re: huge ktr buffer] Message-ID: <20130205171813.GP2522@kib.kiev.ua> In-Reply-To: <CAFgRE9GMeY4dVAzqUsHz2emo82dVODBDw2xYJMcPmxxTm6Rx=g@mail.gmail.com> References: <CAFgRE9F4JMutV9jJ_m7_9va67xiX4YXMT%2BRm6rUoDPMPymsg4w@mail.gmail.com> <20130205151413.GL2522@kib.kiev.ua> <CAFgRE9GMeY4dVAzqUsHz2emo82dVODBDw2xYJMcPmxxTm6Rx=g@mail.gmail.com>
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--iXvAUMgb137SbSJR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 05, 2013 at 09:12:41AM -0800, Neel Natu wrote: > Hi Konstantin, >=20 > Sounds fine. I can bump it up to 8 pages. >=20 > Also, wrt your comment about scaling this number based on available > memory, I wonder if it makes sense to optimize for 16KB of additional > space. If it boots on 128MB as is, I am completely fine with the existing patch (after slack increase) as well. >=20 > I would much rather work with you and Alan to fix pmap_growkernel() so > we don't need to care about this slack in the first place :-) Sure, if you consider this important enough. I do agree with mdf that having this happen without any user intervention is good. But having just a tunable for the slack might be much less labor-intensive and good enough. --iXvAUMgb137SbSJR Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iQIcBAEBAgAGBQJRET7UAAoJEJDCuSvBvK1B3gsP/2uBt9C/AQ4ssADWSqdw/5+s 3fkLNbqhuse/kDHgbhVOBRqRtLr98epNsdu+TGiTyISufUpUhYIl/ou6OSkY/V0N 0AdTNZnCmYVagtDwG11hIibI9lI76FBQi6v1BwQJQ0B+D929OTzstObqDJMUqPx0 fjkrIr1SodJuZt2VBwN/X4DY+wXUFm82QVk3JJkEl60GEy5sxp5T/7SnGm8WJbQk j23Q+syaxL58RHHMKO/6UIZoHjO3u711YPe2E9KYC4MsIFpNfH/a0yXOT9DSepiQ Tz852Cj1U6PHy66BXPyaJaKimGgc1cLxUapuWfa08OI3r3/fT2hMk9FFVcG8/cJh yODPh6vxFtlnjlioz2i2SkQclo28TYoH80ncxQQQoaCpi2tectJIqDCLvz5Fe2Eu uyr/h1ONzFwEh0nOIjhxX1fTlOPfqepUFEuLS0gX9LtH+LtoAYyonphnZUmKkcgE rwLSKJ9tOC4pXZ4l6diEZHp7MxueGypjsK50nTy1aaVgbUBTJgzFdCR8Scn4anit 8yrmrFFN8FiCpGnMJA+KWs8yUzHaGLqAi2L3PryloGUDJ88Juyf52lLt0Vnie2Hy kESANulvu6GGPOUeuWp9rdrNMqcUxRmx3Xvl0lj1ANLT9upSQQVspnbbuWv/oBKz fYXU7ddH+u51U0FhluFN =2QJB -----END PGP SIGNATURE----- --iXvAUMgb137SbSJR--
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