Login
Username:

Password:

Remember me



Lost Password?

Register now!
Sections
Who's Online
65 user(s) are online (10 user(s) are browsing News)

Members: 0
Guests: 65

more...
Support us!
Recent OS4 Files
OS4Depot.net
Recent Replied Topics
Topic Replies Last Post
AmiCygnix can't send an email with the latest Claws email client? 1 (81) cygnusEd Today 15:39
Odyssey Odyssey 1.23 progress [1][2] ... [55][56][57][58] 1152 (323728) kas1e Today 14:57
Amigans feedback Amigans.net 2020 updates 7 (416) 328gts Today 2:30
TuneNet TuneNet V2.9 [1][2] 21 (1031) 328gts Today 2:28
Odyssey Odyssey's MediaPlayer thread [1][2] ... [7][8][9][10] 183 (9344) SinanSam460 Yesterday 14:14
AmigaOS4 Trying to get a Radeon RX 460 working in an AmigaOne XE 16 (1273) Hans Yesterday 6:42
AmigaOS4 AmigaAmp thread (news/releases/bugfixes/feature requests) [1][2] 20 (871) Thematic 4/7 17:39
AmigaOS4 Enhancer Bug thread [1][2] ... [22][23][24][25] 482 (109927) broadblues 4/6 11:45
Amiga Classic Looking for a tester with an Amiga CD 32 0 (77) saimo 4/6 11:16
AmigaOS4 Updater tool: latest releases and updates [1][2][3][4][5][6] 108 (29808) utri007 4/6 10:09
AmigaOS4 Samba Filesystem 14 (576) JoTo 4/5 20:57
AmigaOS4 Remote Desktop towards Win10? 13 (2842) ddni 4/2 14:29
AmigaOS4 [X1000] Errors and improvement ideas for CFE 7 (679) corto 4/1 8:55
Odyssey Anyone Tried Compiling the latest WebKit? 2 (356) Hans 3/31 8:06
Amiga General Forum Horny Source code on Github [1][2][3][4] 72 (5234) densho 3/30 17:47
[View all topics]  [Forum Settings]
Hardware News : Sam440EP memory tests published
Posted by AmiKit on 2007/3/9 0:26:01 (3728 reads) News by the same author
Hardware News

ACube Systems published new information about their awaited PPC hardware. For more information please visit the Sam440EP product page.

Direct links to PDFs:
Sam440EP memory tests
Memory test performed on reference board

Printer Friendly Page Send this Story to a Friend Create a PDF from the article
The comments are owned by the author. We aren't responsible for their content.
Author Thread
joerg
Published: 2007/3/9 8:24  Updated: 2007/3/9 8:24
Just can't stay away
Joined: 12/01/2006
From: Germany
Comments: 1022
 Re: Sam440EP memory tests published
For comparison here are the results of stream_d on an AmigaOne XE with 750FX/800 (executed on AmigaOS4, but of course the OS makes no difference for such benchmarks):
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array 
size 2000000Offset 0
Total memory required 
45.8 MB.
Each test is run 10 timesbut only
the 
*besttime for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 3 microseconds.
Each test below will take on the order of 127572 microseconds.
   (= 
42524 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test
.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For 
best resultsplease be sure you know the
precision of your system timer
.
-------------------------------------------------------------
Function      
Rate (MB/s)   RMS time     Min time     Max time
Copy
:         152.6996       0.2104       0.2096       0.2112
Scale
:        139.7448       0.2300       0.2290       0.2312
Add
:          145.2072       0.3316       0.3306       0.3326
Triad
:        142.7344       0.3375       0.3363       0.3393



Please note that the stream benchmarks aren't optimized, with functions optimized for PPC like the newlib.library memcpy() and memset(), or the AmigaOS4 final IExec->CopyMem[Quick]() and IUtility->SetMem(), you get much faster speeds than with trivial code like in the stream benchmarks or the clib2 memcpy()/memset() functions.
ikir
Published: 2007/3/9 12:30  Updated: 2007/3/9 12:30
Not too shy to talk
Joined: 11/27/2006
From: SYS:Prefs/
Comments: 374
 Re: Sam440EP memory tests published
It seems much more faster than A1.
COBRA
Published: 2007/3/9 15:10  Updated: 2007/3/9 15:23
Not too shy to talk
Joined: 11/24/2006
From:
Comments: 370
 Re: Sam440EP memory tests published
Faster memspeed is important for Sam440 to compensate for the lack of L2 cache. Some dnetc benchmark results would be interesting, it'd give us a better idea of how overall performance compares to a G3/800 in some computing-intensive tasks.

Some more comparison benchmarks can be found here.
srupprecht
Published: 2007/3/9 16:03  Updated: 2007/3/9 16:03
Just popping in
Joined: 01/06/2007
From:
Comments: 11
 Re: Sam440EP memory tests published
That's a G4 (7455 I believe) @ 800mhz (A1):

-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 1000000, Offset = 0
Total memory required = 22.9 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 2 microseconds.
Each test below will take on the order of 65684 microseconds.
(= 32842 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 186.0894 0.0862 0.0860 0.0867
Scale: 166.2200 0.0964 0.0963 0.0969
Add: 173.7731 0.1383 0.1381 0.1386
Triad: 171.0790 0.1404 0.1403 0.1408
Antique
Published: 2007/3/11 1:25  Updated: 2007/3/11 1:25
Home away from home
Joined: 11/30/2006
From: Norway
Comments: 2471
 Re: Sam440EP memory tests published
Looks promising,but would love the see the sam at +1ghz.
LiveForIt
Published: 2007/3/13 18:24  Updated: 2007/3/13 18:24
Home away from home
Joined: 11/20/2006
From: Norway
Comments: 2776
 Re: Sam440EP memory tests published
Sam440 is starting to look interesting now

I hope the sam440 will come whit faster CPU at some point?
joerg
Published: 2007/3/16 16:59  Updated: 2007/3/16 16:59
Just can't stay away
Joined: 12/01/2006
From: Germany
Comments: 1022
 Re: Sam440EP memory tests published
Quote:
Sam440 is starting to look interesting now

I hope the sam440 will come whit faster CPU at some point?
It's using the fastest 440 CPU with FPU already, the other 440 CPUs which are available with higher clock speeds and/or have a L2 cache don't have a FPU.
General
Site sponsors
Advertise Here

Site statistics
Registered members
  1463
Logged in last:
  24 hours, 45
  7 days, 97
  30 days, 152
Top Posters
1 kas1e   kas1e 6079
2 Raziel   Raziel 3683
3 ChrisH   ChrisH 3553
4 samo79   samo79 3267
5 Chris   Chris 3230
6 orgin   orgin 3183
7 LiveForIt   LiveForIt 2776
8 Antique   Antique 2471
9 328gts   328gts 2369
10 Hans   Hans 2271
New Members
d0uard   d0uard 04/05/2020
Gregor   Gregor 03/29/2020
RetroBones   RetroBones 03/17/2020
JoTo   JoTo 03/17/2020
BigSimmo74   BigSimmo74 03/02/2020
beworld   beworld 02/14/2020
rkelemen   rkelemen 02/12/2020
Speedy1969it   Speedy1969it 02/01/2020
Quantumcat   Quantumcat 01/21/2020
Spanky   Spanky 01/19/2020
Powered by XOOPS 2.0 © 2001-2016 The XOOPS Project