From: erik quanstrom <quanstro@labs.coraid.com>
To: 9fans@9fans.net
Subject: Re: [9fans] gar nix!
Date: Fri, 16 Sep 2011 18:27:35 -0400 [thread overview]
Message-ID: <ec691076480cdecc2dd2525c0bdbc022@coraid.com> (raw)
In-Reply-To: <b9ac6031be1945abb16eff45c61a5156@terzarima.net>
On Fri Sep 16 18:18:25 EDT 2011, forsyth@terzarima.net wrote:
> > (can't one just preemptively map the whole text on first-fault?)
>
> that doesn't make sense on many architectures.
> if there isn't a page table system, for instance, but a set of moderate size of software-managed tlbs,
> perhaps with hardware assistance, that won't work terribly well.
> the faults tell you what you're using right now. you need a page size, however,
> that's appropriate for your system (including your application set), or
> faulting lots of tiny chunks of text that your processor can execute quickly
> will give excessive overhead.
sure but we are talking about x86_64, which has a limited number of
possible page sizes and hardware managed tlbs.
it would seem that one could give the architecture code the info and
let it decide?
- erik
next prev parent reply other threads:[~2011-09-16 22:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-16 1:19 erik quanstrom
2011-09-16 5:44 ` Noah Evans
2011-09-17 19:41 ` erik quanstrom
2011-09-17 20:03 ` Noah Evans
2011-09-16 5:56 ` ron minnich
[not found] ` <CAP6exYLuD6ZeOwCfY9TcgSWEYp-2QH-7qUO713GL0cravJ2FzA@mail.gmail.c>
2011-09-16 6:46 ` erik quanstrom
2011-09-16 7:02 ` Nemo
2011-09-16 7:52 ` dexen deVries
2011-09-16 13:36 ` Charles Forsyth
2011-09-16 14:39 ` ron minnich
[not found] ` <CAP6exYLy6sicg42A+7D=bmpWtv=p_an3c5=OQw9YB2oxPXhR2A@mail.gmail.c>
2011-09-16 14:57 ` erik quanstrom
2011-09-16 15:28 ` ron minnich
2011-09-16 15:31 ` Francisco J Ballesteros
[not found] ` <CA+N-5bbt92zqNpt0KW4prykyTxjYNHJJ7LuUCj4n3EACyC5GvQ@mail.gmail.c>
2011-09-16 15:33 ` erik quanstrom
2011-09-16 15:36 ` Francisco J Ballesteros
2011-09-16 15:44 ` ron minnich
2011-09-16 16:07 ` Francisco J Ballesteros
[not found] ` <CA+N-5bYJ1VBpqQENUy5fZirE_Joa9E6RE8rJbvaFwh065zd2TA@mail.gmail.c>
2011-09-16 15:37 ` erik quanstrom
2011-09-16 18:24 ` ron minnich
2011-09-16 22:23 ` Charles Forsyth
2011-09-16 22:27 ` erik quanstrom [this message]
2011-09-17 3:39 ` Bruce Ellis
2011-09-17 7:35 ` Charles Forsyth
2011-09-17 7:44 ` Charles Forsyth
2011-09-17 8:45 ` Charles Forsyth
[not found] ` <CAP6exYK+aoYcaC+LLo4XdPmZ1jvPQ0dAgZuUkmX7_xZQ+h3+gQ@mail.gmail.c>
2011-09-16 18:32 ` erik quanstrom
2011-09-16 18:44 ` Francisco J Ballesteros
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