Poster | Thread |
iggy
|  |
Re: An abundance of AmigaOS Posted on 6-Oct-2015 12:12:17
| | [ #861 ] |
|
|
 |
Super Member  |
Joined: 20-Oct-2010 Posts: 1175
From: Bear, Delaware USA | | |
|
| @eliyahu
Quote:
because in that section of the article thomas was talking about SMT (symmetric multi-threading), something the e6500 core architecture supports. the e5500 is not SMT-capable. |
Well the topic was SMP, but yes it trailed of into SMT which is an entirely different thing.
The e6500 cored products are the first to offer SMT, which is easier to digest if you think of it as what Intel refers to it as - hyperthreading.
Edit to reduce content and commentary - iggyLast edited by iggy on 07-Oct-2015 at 10:27 AM. Last edited by iggy on 06-Oct-2015 at 12:19 PM.
|
|
Status: Offline |
|
|
ssolie
|  |
Re: Hyperion Blog update.... Posted on 6-Oct-2015 22:38:29
| | [ #862 ] |
|
|
 |
Elite Member  |
Joined: 10-Mar-2003 Posts: 2755
From: Alberta, Canada | | |
|
| @number6 Quote:
AmigaOS and the Console Development - Part 2 |
My news items are starting to appear now. I hope everybody enjoys the article. Tony did an excellent job on them.
Last edited by ssolie on 06-Oct-2015 at 10:38 PM.
_________________ ExecSG Team Lead |
|
Status: Offline |
|
|
olegil
|  |
Re: An abundance of AmigaOS Posted on 8-Oct-2015 7:21:59
| | [ #863 ] |
|
|
 |
Elite Member  |
Joined: 22-Aug-2003 Posts: 5900
From: Work | | |
|
| @iggy
But they can't call it hyperthreading, because that's the name for one POSSIBLE implementation of SMT. Besides, having SMP without optimising for SMT when the CPU lineup has SMT would seem to be not very ambitious 
Besides, freescale claim to have a lot more redundancy in their SMT than Intel, Intel had 15-30% benefit from HT back in P4 era (mostly from avoiding pipeline stalls), using passmark numbers I would say they have 40-60% now (I'm interested in reading more about additional added redundancy of computing blocks if anyone has a link). Example:
i7-4930, 6 cores, 12 threads, 3.4GHz (3.9GHz turbo). Scaling single thread performance of 1998 down by turbo frequency to normal frequency ratio, scaling up from 1 to 12 threads, dividing by actual 12 thread passmark rating: ((1998*34/39)*12)/13077 = 1.59 and a bit.
Haven't seen any single thread vs SMT performance numbers for freescales e6500 (you woulda thunk someone was eager to run some numbers by now), but datasheets claim gain from 3.3 to 6, a ratio of 1.81. _________________ This weeks pet peeve: Using "voltage" instead of "potential", which leads to inventing new words like "amperage" instead of "current" (I, measured in A) or possible "charge" (amperehours, Ah or Coulomb, C). Sometimes I don't even know what people mean. |
|
Status: Offline |
|
|
olegil
|  |
Re: Hyperion Blog update.... Posted on 8-Oct-2015 8:39:06
| | [ #864 ] |
|
|
 |
Elite Member  |
Joined: 22-Aug-2003 Posts: 5900
From: Work | | |
|
| @ssolie
It was in fact another enlightening article. Thanks. _________________ This weeks pet peeve: Using "voltage" instead of "potential", which leads to inventing new words like "amperage" instead of "current" (I, measured in A) or possible "charge" (amperehours, Ah or Coulomb, C). Sometimes I don't even know what people mean. |
|
Status: Offline |
|
|
cdimauro
|  |
Re: An abundance of AmigaOS Posted on 9-Oct-2015 20:20:49
| | [ #865 ] |
|
|
 |
Elite Member  |
Joined: 29-Oct-2012 Posts: 4127
From: Germany | | |
|
| @olegil
Quote:
olegil wrote:
Besides, freescale claim to have a lot more redundancy in their SMT than Intel, Intel had 15-30% benefit from HT back in P4 era (mostly from avoiding pipeline stalls), using passmark numbers I would say they have 40-60% now (I'm interested in reading more about additional added redundancy of computing blocks if anyone has a link). Example:
i7-4930, 6 cores, 12 threads, 3.4GHz (3.9GHz turbo). Scaling single thread performance of 1998 down by turbo frequency to normal frequency ratio, scaling up from 1 to 12 threads, dividing by actual 12 thread passmark rating: ((1998*34/39)*12)/13077 = 1.59 and a bit.
|
AFAIK the turbo frequency is used only for some, few (sometimes only one), cores. So you cannot scale the results by 3.9Ghz. |
|
Status: Offline |
|
|
marko
 |  |
Re: Hyperion Blog update.... Posted on 16-Sep-2016 23:47:12
| | [ #866 ] |
|
|
 |
Super Member  |
Joined: 17-Dec-2007 Posts: 1816
From: Gothenburg, THE front side of Sweden ;), (via Finland), EU | | |
|
| @Thread
Hyperion blog updated with their DevCon plans at AmiWest 2016:
http://blog.hyperion-entertainment.biz/?p=1252
_________________ AmigaOS 4.1 FEu2 on Sam440ep-flex 800MHz 1GB RAM  C128, A500+, A1200, A1200/40, AmigaForever 2008+09+16, 5 x86/x64 boxes Still waiting (or dreaming) for the Amiga revolution... m4rko.com/AMIGA |
|
Status: Offline |
|
|
pavlor
|  |
Re: Hyperion Blog update.... Posted on 17-Sep-2016 7:15:06
| | [ #867 ] |
|
|
 |
Elite Member  |
Joined: 10-Jul-2005 Posts: 9660
From: Unknown | | |
|
| @marko
Thanks for posting. We missed another post about DCFS and LNFS (with link to OS4 wiki). |
|
Status: Offline |
|
|
number6
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 15:35:41
| | [ #868 ] |
|
|
 |
Elite Member  |
Joined: 25-Mar-2005 Posts: 11663
From: In the village | | |
|
| @thread
SDK update for Amiga DevCon 2017
#6
_________________ This posting, in its entirety, represents solely the perspective of the author. *Secrecy has served us so well* |
|
Status: Offline |
|
|
wawa
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 16:20:31
| | [ #869 ] |
|
|
 |
Elite Member  |
Joined: 21-Jan-2008 Posts: 6259
From: Unknown | | |
|
| @number6
i understand that tabor needs dedicated binaries, but x5k? strange.. |
|
Status: Offline |
|
|
NutsAboutAmiga
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 16:53:40
| | [ #870 ] |
|
|
 |
Elite Member  |
Joined: 9-Jun-2004 Posts: 12965
From: Norway | | |
|
| |
Status: Offline |
|
|
Mr_Capehill
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 16:56:33
| | [ #871 ] |
|
|
 |
Super Member  |
Joined: 15-Mar-2003 Posts: 1933
From: Yharnam | | |
|
| @number6
It looks like GCC 7.1 is the latest official version. I wonder what is the reason that Hyperion targets 5.4? Stability?
By the way, simplegit (sgit) would be a nice contribution for the SDK.
|
|
Status: Offline |
|
|
pavlor
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 17:02:40
| | [ #872 ] |
|
|
 |
Elite Member  |
Joined: 10-Jul-2005 Posts: 9660
From: Unknown | | |
|
| @wawa
Quote:
i understand that tabor needs dedicated binaries, but x5k? strange.. |
How else you want to build optimized binaries? |
|
Status: Offline |
|
|
NutsAboutAmiga
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 17:36:44
| | [ #873 ] |
|
|
 |
Elite Member  |
Joined: 9-Jun-2004 Posts: 12965
From: Norway | | |
|
| |
Status: Offline |
|
|
iggy
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 18:30:34
| | [ #874 ] |
|
|
 |
Super Member  |
Joined: 20-Oct-2010 Posts: 1175
From: Bear, Delaware USA | | |
|
| @pavlor
Quote:
How else you want to build optimized binaries? |
You'd hope they wouldn't be necessary, but then X64 software vendors optimize for differences between AMD and Intel cpus. Of course, THEY release one package that installs appropriate binaries for whatever tweaks are needed.
Why we aren't thinking along those lines baffles me. |
|
Status: Offline |
|
|
NutsAboutAmiga
|  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 21:09:26
| | [ #875 ] |
|
|
 |
Elite Member  |
Joined: 9-Jun-2004 Posts: 12965
From: Norway | | |
|
| |
Status: Offline |
|
|
Rob
 |  |
Re: Hyperion Blog update.... Posted on 30-Jun-2017 22:15:47
| | [ #876 ] |
|
|
 |
Elite Member  |
Joined: 20-Mar-2003 Posts: 6395
From: S.Wales | | |
|
| @wawa
Quote:
i understand that tabor needs dedicated binaries, but x5k? strange.. |
Need?
No, it is not a special SPE version, but ffmpeg uses mostly fixedpoint, so in the current AmigaOS 4.1 state, the tabor is about 60% faster as sam 460 in decoding.
https://www.youtube.com/watch?v=XPdr7MaGvLo |
|
Status: Offline |
|
|
Hans
|  |
Re: Hyperion Blog update.... Posted on 1-Jul-2017 8:43:20
| | [ #877 ] |
|
|
 |
Elite Member  |
Joined: 27-Dec-2003 Posts: 5116
From: New Zealand | | |
|
| @wawa
Quote:
wawa wrote: @number6
i understand that tabor needs dedicated binaries, but x5k? strange.. |
Neither Tabor nor the X5000 need dedicated binaries. However, it is useul to have a compiler that can use CPU-specific features, or optimise for specific CPUs. For example, it's definitely useful to be able to compile code that uses Tabor's unusual FPU.
Hans
_________________ Join the Kea Campus - upgrade your skills; support my work; enjoy the Amiga corner. https://keasigmadelta.com/ - see more of my work |
|
Status: Offline |
|
|
wawa
|  |
Re: Hyperion Blog update.... Posted on 1-Jul-2017 9:13:26
| | [ #878 ] |
|
|
 |
Elite Member  |
Joined: 21-Jan-2008 Posts: 6259
From: Unknown | | |
|
| @Hans
it was clear to start with that tabor needs dedicated binaries to perform respectively, i was wondering about x5k, as yiu see. |
|
Status: Offline |
|
|
kas1e
|  |
Re: Hyperion Blog update.... Posted on 1-Jul-2017 9:55:53
| | [ #879 ] |
|
|
 |
Elite Member  |
Joined: 11-Jan-2004 Posts: 3551
From: Russia | | |
|
| @Mr_Capehill Quote:
It looks like GCC 7.1 is the latest official version. I wonder what is the reason that Hyperion targets 5.4? Stability?
|
Probably just because of limited Sebastian's time (as i see from adtools repo, he works on it alone most o time), and because 5.4 was a least a bit tested before (by yam, mui, and some other stuff).
Through, if i remember right, there was some issues as well. As far as i remember, Hans with radeonhd (or it was w3dnova?) have issues back in time, and was in needs to switch back to 4.x one. Also zzd10h had to recompile some of his tools via 4.x, as 5.x (at time when it was tested) give some problems. I not sure there through, just as far as i remember. Maybe that all deal with already in adtools.
_________________ Join us to improve dopus5! zerohero's mirror of os4/os3 crosscompiler suites |
|
Status: Offline |
|
|
number6
|  |
Re: Hyperion Blog update.... Posted on 6-Aug-2017 16:45:28
| | [ #880 ] |
|
|
 |
Elite Member  |
Joined: 25-Mar-2005 Posts: 11663
From: In the village | | |
|
| |
Status: Offline |
|
|