From: Gerd Hoffmann <kraxel@redhat.com>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"open list:RISC-V" <qemu-riscv@nongnu.org>,
"Richard Henderson" <richard.henderson@linaro.org>,
"QEMU Developers" <qemu-devel@nongnu.org>,
qemu-discuss <qemu-discuss@nongnu.org>,
qemu-s390x <qemu-s390x@nongnu.org>,
qemu-arm <qemu-arm@nongnu.org>,
qemu-ppc@nongnu.org, "Alex Bennée" <alex.bennee@linaro.org>
Subject: Re: [RFC PATCH] configure: deprecate 32 bit build hosts
Date: Fri, 27 Sep 2019 10:55:46 +0200 [thread overview]
Message-ID: <20190927085546.2aemjmwudvgpek3y@sirius.home.kraxel.org> (raw)
In-Reply-To: <20190926125817.GB19660@redhat.com>
Hi,
> That leaves armv7 as the only 32-bit arch in Fedora that is somewhat
> active & maintained. I don't have any real insight on whether any
> armv7 (Fedora) users are making much use of QEMU/KVM though, either
> system or user emulation.
Played with system emulation a while back. I doubt this is used much
in practice. It's very slow for various reasons (no gic, no armv8 arch
updates to support kvm virt better, slow sdcard/usb I/O). TCG on a
beefy x86 box is roughly the same speed. Also 1G of memory isn't that
much even without considering virtual machines.
The rpi4 with 4G (disclaimer: don't have one) probably works better.
But note they are finally working on a 64bit kernel for raspbian,
which I expect is only a first step for better 64bit support.
cheers,
Gerd
next prev parent reply other threads:[~2019-09-27 8:59 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 23:30 [RFC PATCH] configure: deprecate 32 bit build hosts Alex Bennée
2019-09-26 7:29 ` Philippe Mathieu-Daudé
2019-09-26 7:50 ` Peter Maydell
2019-09-26 12:58 ` Daniel P. Berrangé
2019-09-26 13:46 ` Christian Borntraeger
2019-09-26 14:26 ` Thomas Huth
2019-09-26 15:27 ` Alex Bennée
2019-09-26 16:11 ` Alistair Francis
2019-09-26 19:02 ` Alex Bennée
2019-09-27 8:55 ` Gerd Hoffmann [this message]
2019-09-26 15:31 ` Alex Bennée
2019-09-26 17:11 ` Richard Henderson
2019-09-30 9:25 ` Daniel P. Berrangé
[not found] ` <87impakrky.fsf@linaro.org>
2019-09-30 10:36 ` Peter Maydell
2019-09-30 11:41 ` Peter Maydell
2019-10-01 17:56 ` Mark Cave-Ayland
2019-10-01 18:02 ` Richard Henderson
2019-10-02 9:10 ` Daniel P. Berrangé
2019-10-02 15:16 ` Richard Henderson
2019-09-26 7:55 ` Thomas Huth
2019-09-26 15:27 ` Alex Bennée
2019-09-27 10:42 ` Mark Cave-Ayland
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