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From: Richard Weinberger <richard@nod.at>
To: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	"x86@kernel.org" <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	UML devel <user-mode-linux-devel@lists.sourceforge.net>,
	linux-kbuild <linux-kbuild@vger.kernel.org>
Subject: Re: [uml-devel] [PATCH] checkstack: use $UTS_MACHINE as target architecture
Date: Tue, 08 Jul 2014 11:06:55 +0200	[thread overview]
Message-ID: <53BBB4AF.1080507@nod.at> (raw)
In-Reply-To: <CALYGNiPakwGquDk9MVGeSrx4RmUOg21=_Zcw097Z5sGTsP=Cwg@mail.gmail.com>

Am 08.07.2014 11:03, schrieb Konstantin Khlebnikov:
> I know. But debugging/profiling of kernel code is much easier when it
> runs in userspace.
> I think this is the last use case where uml might beat normal hardware
> accelerated qemu/kvm.
> But without SMP and with that high overhead on each syscall and
> context/mm switch it's mostly useless.

The major use case of UML is that you can run it on hardware without
KVM support.
Everyone else is using KVM.

Thanks,
//richard

  reply	other threads:[~2014-07-08  9:07 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-05 11:22 [PATCH] checkstack: use $UTS_MACHINE as target architecture Konstantin Khlebnikov
2014-07-07 22:05 ` Andrew Morton
2014-07-08  5:48   ` Konstantin Khlebnikov
2014-07-08  8:01     ` [uml-devel] " Richard Weinberger
2014-07-08  8:16       ` Konstantin Khlebnikov
2014-07-08  8:20         ` Richard Weinberger
2014-07-08  8:30           ` Konstantin Khlebnikov
2014-07-08  8:33             ` Richard Weinberger
2014-07-08  8:47               ` Konstantin Khlebnikov
2014-07-08  8:50                 ` Richard Weinberger
2014-07-08  9:03                   ` Konstantin Khlebnikov
2014-07-08  9:06                     ` Richard Weinberger [this message]
2014-07-08  9:09                       ` Geert Uytterhoeven
2014-07-08  9:14                         ` Richard Weinberger
2014-07-08  9:22                           ` Geert Uytterhoeven
2014-07-08  9:23                             ` Richard Weinberger
2014-07-08 10:31     ` Konstantin Khlebnikov
2014-07-08 10:35       ` [PATCH] scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86 Konstantin Khlebnikov

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