Date: Wed, 15 Aug 2018 07:56:24 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Mark Millard <marklmi@yahoo.com> Cc: Trev <freebsd-arm@sentry.org>, freebsd-arm@freebsd.org Subject: Re: RPI3 swap experiments (grace under pressure) Message-ID: <20180815145624.GU97145@funkthat.com> In-Reply-To: <16004AB0-B499-4F30-8C14-AAE5E45B0A3B@yahoo.com> References: <FC0798A1-C805-4096-9EB1-15E3F854F729@yahoo.com> <20180813185350.GA47132@www.zefox.net> <FA3B8541-73E0-4796-B2AB-D55CE40B9654@yahoo.com> <20180814014226.GA50013@www.zefox.net> <02fe39af-a02c-fb6a-70b0-da3b7fd06c22@goodgas.com.au> <20180814213107.GA51051@www.zefox.net> <D04BB7AF-503F-4779-B31B-AEF2A15EA7C6@jeditekunum.com> <bc2b4aa9-5284-502b-1745-aa531c12c5b8@m5p.com> <2f3bed05-b27e-420b-e831-1c8286edf35e@sentry.org> <16004AB0-B499-4F30-8C14-AAE5E45B0A3B@yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Mark Millard via freebsd-arm wrote this message on Wed, Aug 15, 2018 at 07:39 -0700: > On 2018-Aug-14, at 5:20 PM, Trev <freebsd-arm at sentry.org> wrote: > > > George Mitchell wrote on 15/08/2018 08:33: > >> On 08/14/18 18:17, Jedi Tek'Unum wrote: > >>> I firmly disagree with the entire concept of out of memory killers. They are simply evil and in my opinion a complete cop-out. I first encountered this kind of kludge back in the ???80s with AIX. It was bad then and it still is today. Frankly I find it ridiculous that they still exist. > >>> [...] > >> However: consider the subject (Raspberry Pi). -- George > > > > When researching whether 512M of RAM was considered "usable" for a FreeBSD buildworld, I came across [https://reviews.freebsd.org/D8302] from October 2016 where just 256M was considered a test case for i386 and amd64 (-j1 I'm assuming) buildworlds which should succeed. > > What I see there is pho writing: > > QUOTE > I have run stress2 testes on i386 and amd64. > I ran a buildkernel on both i386 and amd64 with 256MB RAM / UP. > Buildworld was run with various small RAM configurations. > END QUOTE > > It explicitly lists buildkernel for 256 MiBytes of RAM, not > buildworld. I'm not sure what the "UP" is for. "RAM / UP" > looks like it might be a ratio but may be it was indicating > not SMP? It not clear if this buildkernel testing included > kernel-toolchain as well. UP mean Uniprocessor, or no -j flag... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20180815145624.GU97145>