On 16/03/2023 11.22, Andrew Randrianasulu wrote:
чт, 16 мар. 2023 г., 12:17 Andrew Randrianasulu <randrianas...@gmail.com
<mailto:randrianas...@gmail.com>>:
чт, 16 мар. 2023 г., 11:31 Thomas Huth <th...@redhat.com
<mailto:th...@redhat.com>>:
On 16/03/2023 08.36, Philippe Mathieu-Daudé wrote:
> On 16/3/23 08:17, Andrew Randrianasulu wrote:
>>
>> чт, 16 мар. 2023 г., 10:05 Philippe Mathieu-Daudé
<phi...@linaro.org <mailto:phi...@linaro.org>
>> <mailto:phi...@linaro.org <mailto:phi...@linaro.org>>>:
>>
>> Hi Andrew,
>>
>> On 16/3/23 01:57, Andrew Randrianasulu wrote:
>> > Looking at https://wiki.qemu.org/ChangeLog/8.0
<https://wiki.qemu.org/ChangeLog/8.0>
>> <https://wiki.qemu.org/ChangeLog/8.0
<https://wiki.qemu.org/ChangeLog/8.0>>
>> > <https://wiki.qemu.org/ChangeLog/8.0
<https://wiki.qemu.org/ChangeLog/8.0>
>> <https://wiki.qemu.org/ChangeLog/8.0
<https://wiki.qemu.org/ChangeLog/8.0>>>
>> >
>> > ===
>> > System emulation on 32-bit x86 and ARM hosts has been
deprecated.
>> The
>> > QEMU project no longer considers 32-bit x86 and ARM
support for
>> system
>> > emulation to be an effective use of its limited
resources, and thus
>> > intends to discontinue.
>> >
>> > ==
>> >
>> > well, I guess arguing from memory-consuption point on 32
bit x86
>> hosts
>> > (like my machine where I run 32 bit userspace on 64 bit
kernel)
All current PCs have multiple gigabytes of RAM, so using a 32-bit
userspace
to save some few bytes sounds weird.
I think difference more like in 20-30% (on disk and in ram), not *few
bytes*.
I stand (self) corrected on *on disk* binary size, this parameter tend to be
~same between bash / php binaries from Slackware 15.0 i586/x86_64. I do not
have full identical x64 Slackware setup for measuring memory impact.
Still, pushing users into endless hw upgrade is no fun:
https://hackaday.com/2023/02/28/repurposing-old-smartphones-when-reusing-makes-more-sense-than-recycling/
>
note e-waste and energy consumption
Now you're mixing things quite badly. That would be an argument in the years
before 2010 maybe, when not everybody had a 64-bit processor in their PC
yet, but it's been now more than 12 years that all recent Desktop processors
feature 64-bit mode. So if QEMU stops supporting 32-bit x86 environments,
this is not forcing you to buy a new hardware, since you're having a 64-bit
hardware already anyway. If someone still has plain 32-bit x86 hardware
around for their daily use, that's certainly not a piece of hardware you
want to run QEMU on, since it's older than 12 years already, and thus not
really strong enough to run a recent emulator in a recent way.
Thomas
