qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: BALATON Zoltan <balaton@eik.bme.hu>
To: Programmingkid <programmingkidx@gmail.com>
Cc: Howard Spoelstra <hsp.cat7@gmail.com>,
	qemu-ppc@nongnu.org,
	qemu-devel qemu-devel <qemu-devel@nongnu.org>,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [RFC PATCH v2] target/ppc: Enable hardfloat for PPC
Date: Wed, 26 Feb 2020 12:28:21 +0100 (CET)	[thread overview]
Message-ID: <alpine.BSF.2.22.395.2002261220230.39786@zero.eik.bme.hu> (raw)
In-Reply-To: <3539F747-145F-49CC-B494-C9794A8ABABA@gmail.com>

On Wed, 26 Feb 2020, Programmingkid wrote:
> I think a timeout takes place and that is why audio stops playing. It is 
> probably an USB OHCI issue. The other USB controller seems to work 
> better.

Which other USB controller? Maybe you could try enabling some usb_ohci* 
traces and see if they reveal anything.

>> The Amiga like OSes I'm interested in don't use multiple cores so I'm 
>> mainly interested in improving single core performance. Also I'm not 
>> sure if (part of) your problem is slow FPU preventing fast enough audio 
>> decoding then having multiple CPUs with slow FPU would help as this may 
>> use a single thread anyway.
>
> Good point. MTTCG might be the option that really helps with speed improvements.

Only if you have multithreaded workload in the guest because AFAIK MTTCG 
only runs different vcpus in parallel, it won't make single emulated CPU 
faster in any way. OSX probably can benefit from having multiple cores 
emulated but I don't think MacOS would use it apart from some apps maybe.

Regards,
BALATON Zoltan


  reply	other threads:[~2020-02-26 11:29 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-18 17:10 [RFC PATCH v2] target/ppc: Enable hardfloat for PPC BALATON Zoltan
2020-02-18 17:38 ` BALATON Zoltan
2020-02-19  2:27 ` Programmingkid
2020-02-19 15:35   ` BALATON Zoltan
2020-02-19 18:28     ` Howard Spoelstra
2020-02-19 19:28       ` BALATON Zoltan
2020-02-20  5:43         ` Howard Spoelstra
2020-02-25  3:07     ` Programmingkid
2020-02-25 12:09       ` BALATON Zoltan
2020-02-26 10:46         ` Programmingkid
2020-02-26 11:28           ` BALATON Zoltan [this message]
2020-02-26 13:00             ` R: " luigi burdo
2020-02-26 13:08               ` Dino Papararo
2020-02-26 14:28                 ` Alex Bennée
2020-02-26 15:50                   ` Aleksandar Markovic
2020-02-26 17:04                     ` G 3
2020-02-26 17:27                       ` Aleksandar Markovic
2020-02-26 18:14                         ` R: " Dino Papararo
2020-02-26 18:51                           ` Aleksandar Markovic
2020-02-27  2:43                         ` Programmingkid
2020-02-27  7:16                           ` Aleksandar Markovic
2020-02-27 11:54                             ` BALATON Zoltan
2020-02-26 18:09                       ` R: " Alex Bennée
2020-03-02  0:13                         ` Programmingkid
2020-03-02  4:28                           ` Richard Henderson
2020-03-02 11:42                             ` BALATON Zoltan
2020-03-02 16:55                               ` Richard Henderson
2020-03-02 23:16                                 ` BALATON Zoltan
2020-03-03  0:11                                   ` Richard Henderson
     [not found]                                   ` <CAKyx-3Pt2qLPXWQjBwrHn-nxR-9e++TioGp4cKFC3adMN3rtiw@mail.gmail.com>
2020-03-04 18:43                                     ` Fwd: " G 3
2020-03-05 19:25                                       ` Richard Henderson
2020-03-02 17:10                               ` Alex Bennée
2020-03-02 23:01                                 ` BALATON Zoltan
2020-02-26 22:51                   ` R: " BALATON Zoltan
2020-02-20 20:13 ` Richard Henderson
2020-02-21 16:04   ` BALATON Zoltan
2020-02-21 16:11     ` Peter Maydell
2020-02-21 16:51       ` Aleksandar Markovic
2020-02-21 18:04       ` BALATON Zoltan
2020-02-21 18:26         ` Peter Maydell
2020-02-21 19:52           ` BALATON Zoltan
2020-02-26 12:28             ` Alex Bennée
2020-02-26 13:07               ` BALATON Zoltan
2020-04-10 13:50 ` 罗勇刚(Yonggang Luo)
2020-04-10 18:04   ` BALATON Zoltan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=alpine.BSF.2.22.395.2002261220230.39786@zero.eik.bme.hu \
    --to=balaton@eik.bme.hu \
    --cc=david@gibson.dropbear.id.au \
    --cc=hsp.cat7@gmail.com \
    --cc=programmingkidx@gmail.com \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).