Arch Linux

kozaki

Member

From: London >. < Paris

Registered: 2005-06-13

Posts: 674

Website

qemu-2.6.0-3: missing qemu-system-i386

Upon updating to qemu-2.6.0-3-x86_64, I found out there's no more qemu-system-i386, and therefore ability to emulate i{3,4,5,6}86 hardware on Arch x86_64.
Reverting back to release 2.6.0-1 solves the issue in this location.

The pkg size has dropped by 40% size between the two releases:

-rw-r--r-- 1 root root 6.5M 13 mai   01:32 /var/cache/pacman/pkg/qemu-2.6.0-1-x86_64.pkg.tar.xz
-rw-r--r-- 1 root root 4.0M 19 août  18:20 /var/cache/pacman/pkg/qemu-2.6.0-3-x86_64.pkg.tar.xz

EDIT: seems to me it differs from https://bbs.archlinux.org/viewtopic.php?id=131996 when upstream changed from qemu to qemu-system-<arch>.

Last edited by kozaki (2016-08-31 13:51:34)

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Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery ) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

pypi

Wiki Maintainer

Registered: 2014-04-22

Posts: 250

Re: qemu-2.6.0-3: missing qemu-system-i386

See also https://bugs.archlinux.org/task/50408...

kozaki

Member

From: London >. < Paris

Registered: 2005-06-13

Posts: 674

Website

Re: qemu-2.6.0-3: missing qemu-system-i386

Done, and should have checked bugs on top of qemu project. Thank you.
Still *feel* awkward going 'qemu-system-x86_64 -cpu {pentium,athlon}`. Now please correct me if the following is wrong, AMD x86_64 instructions have all the i<n>86s. So qemu's `-cpu` switch should do as well with x86_64 than with i386.

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Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery ) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

kozaki

Member

From: London >. < Paris

Registered: 2005-06-13

Posts: 674

Website

Re: qemu-2.6.0-3: missing qemu-system-i386

I've run some quick and dirty testing with qemu v2.6.0 system-i386 / x86_64 and same with v2.6.1, for a Debian guest running Linux 3.7.10-486-smp and Mate that I run with  `-cpu pentium3` (three time each).

- uptime 3', idle

  95-110 / 95-110 | 90-100 / 115-120 MiB

- and with an identical browser+session + 3' wait:

  215-245 / 225-260 | 220-240 / 255-265 MiB

So basically this guest shows 8-18% more RAM usage from v2.6.0 i386 to v2.6.1 x86_64 (and 2-13% more between v2.6.1 and 2.6.1 x86_64), including the variations between consecutives launches with the same qemu binary. Note: I've run this to know whether I need to install extra/qemu-arch-extra or not.

EDIT: Added qemu 2.6.1 i386 (from qemu-arch-extra) numbers.

Last edited by kozaki (2016-09-04 16:54:59)

---

Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery ) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9