Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 3   >   >>
Charlie_S
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
Charlie_S   11/7/2012 10:21:36 PM
NO RATINGS
Re slide 7: - irrespective of whether the compiler can auto-parallelize the SpecInt code, if the benchmark includes stuff that probes how well the cores can access shared data, that 'stuff' needs to be optimized to the target hardware. - the slide horizontal axis is labelled 'threads', with an implication that each thread is running on a dedicated core. - the figures given for the A57 indicate that 4 cores give about 3 times the performance of a single core.. - this could be indicative of a potential issue of excessive latency in the interconnect that links cores to memory etc.. Re performance: claimed vs realized: @wsw1982, the marketing guys will always try and claim the biggest figure they think that they can get away with; but behind the scenes, the engineers BETTER have an EDA environment that allows them to run the actual benchmark code on a simulation of a complete test chip (albeit rather slowly...); so they know the reality already (within the simulation environment accuracy limits.... eg DDR response time modelling...). If they don't have this capability, some people may get some 'surprises' when they start to evaluate the real Si...

rick merritt
User Rank
Blogger
re: Slideshow: ARM A57 core revealed
rick merritt   11/7/2012 2:20:09 PM
NO RATINGS
@help.fulguy: I hereby dub you our official EE Times (and my personal) gadfly ;-)

The MicroMan
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
The MicroMan   11/7/2012 3:40:46 AM
NO RATINGS
I'm sure the people at UBM can provide this guy with advertising rates so he doesn't jam his promos into story comments.

help.fulguy
User Rank
Manager
re: Slideshow: ARM A57 core revealed
help.fulguy   11/7/2012 2:16:47 AM
NO RATINGS
@ wsw1982 and @ danny1024, Rick is not going to like your comments nor his company UBM Times, which is owned by ARM. You are supposed to leave loving ARM comments

danny1024
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
danny1024   11/6/2012 7:14:40 AM
NO RATINGS
Medfield is already highly competitive with the best ARM's licensees can field and that's on Intel's older 32nm LP process; Silvermont is a fundamentally new ATOM microrachitecture on a new 22nm LP process and it's been tweaked to the last femtoferrad by the Intel Army. The combined Haswell and Silvermont Intel avalanche is coming in 2013 and I can't wait to see how the market/competition respond!

wsw1982
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
wsw1982   11/5/2012 10:37:16 AM
NO RATINGS
I won't judge the ARM performance until the real product exist. Just 1 years ago, there are full of people in EETIMES argued that "based on benchmark" the ARM a9 was 2~4 time faster than current atom, and were soon busted by the comparison between real mobile product. Don't take me wrong, I don't mean those people are incapable, but the result from ARM is just misleading and bluffing. They also declared the ATOM is incapable of being used in smartphone until 22nm when then medfield was already in massive production, what a reputation.

bruzzer2
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
bruzzer2   11/4/2012 4:56:14 PM
NO RATINGS
Power aside don't forget ARM parts are made for switch and MP blades and dense implementations. Four nodes per blade at 16 cores on the work load places ARM 32 bit parts while memory limited, and certainly any 64 bit part, in Xeon DP/MP performance territory. Benchmark the compute module not the individual processor. Mike Bruzzone at Camp Marketing

Quickembed
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
Quickembed   11/4/2012 12:23:39 PM
NO RATINGS
arm is moving really fast. we have caught it with arm9, arm11, arm cortext a8, a9, but now it moves to A50! yet each arm platform find it way on different usage. We provide arm board R&D OEM/ODM service, get you a quick product prototype and demo sample, save you precious time and let you focus on application and market. www.quickembed.com Samsung ARM cortex A8 S5PV210 tiny210 board http://www.quickembed.com/Tools/Shop/A8/201202/245.html

asolomatnikov943
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
asolomatnikov943   11/3/2012 8:48:23 PM
NO RATINGS
Some benchmarks in specInt2006 can be auto-parallelized by compiler it has some effect on the overall score. Not sure about specInt2000 - it was retired long time ago (even specInt2006 was supposed to be retired this year). But it's likely possible to play tricks to make specInt2000 results look better. It's annoying that ARM uses long retired benchmark. specInt2000 working set sizes are substantially smaller than specInt2006, so just having large cache (which was expensive 5-10 years ago) would give a nice performance boost, e.g. http://cpudb.stanford.edu/visualize/performance_by_freq_and_cache

kjdsfkjdshfkdshfvc
User Rank
Rookie
re: Slideshow: ARM A57 core revealed
kjdsfkjdshfkdshfvc   11/3/2012 8:07:28 PM
NO RATINGS
We are Apple Haters! http://bit.ly/IC4m9t @TheAppleHaters

Page 1 / 3   >   >>


Most Recent Comments
Etmax
 
Charlie Cheng
 
betajet
 
betajet
 
TonyTib
 
Ray.Anderson
 
betajet
 
y_sasaki
 
junko.yoshida
Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
The Engineering Life - Around the Web
Terry Cutler, CTO, Digital Locksmiths

The USB Keys in the Urinal
Terry Cutler, CTO, Digital Locksmiths
Post a comment
Security is a major obsession today, particularly as the industry makes the shift from traditional, standalone devices to the design of connected, networked systems that are “always ...

Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
6 comments
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
58 comments
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
8 comments
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)