Personal computing discussed

Search found 15 matches

by Greyguy 1948
Mon May 08, 2017 5:46 am
Forum: Processors
Topic: Agner's CPU blog: Ryzen
Replies: 2
Views: 3160

Re: Agner's CPU blog: Ryzen

Yes Agner opt. guides are interesting to read. Now I wait for Goldmont.
He is writing about the lack of stabilty in Ryzen. Could it be bad BIOS?
I am also waiting for SPEC 2006 results for Ryzen.
Opteron is really very far behind Xeon...any Ryzen would be better!
by Greyguy 1948
Tue Apr 25, 2017 2:42 am
Forum: Processors
Topic: Old software and new hardware
Replies: 3
Views: 1676

Re: Old software and new hardware

FLOPS benchmark on 64 bit Linux: MFLOPS(1)=6645 MFLOPS(2)=4320 MFLOPS(3)=4789 MFLOPS(4)=4869 Floating point is really high if you compare with a low budget ARM like ASUS Tinkerboard (1800 MHz): MFLOPS(1)=544 MFLOPS(2)=422 MFLOPS(3)=571 MFLOPS(4)=634 Integer is not the same ratio. Compare queens -c ...
by Greyguy 1948
Mon Apr 24, 2017 3:05 am
Forum: Processors
Topic: Old software and new hardware
Replies: 3
Views: 1676

Re: Old software and new hardware

FLOPS benchmark on 64 bit Linux:
MFLOPS(1)=6645
MFLOPS(2)=4320
MFLOPS(3)=4789
MFLOPS(4)=4869
by Greyguy 1948
Mon Apr 24, 2017 2:46 am
Forum: Processors
Topic: Old software and new hardware
Replies: 3
Views: 1676

Re: Old software and new hardware

Some c-code is find here:
http://home.vianetworks.nl/users/mhx/
by Greyguy 1948
Mon Apr 24, 2017 2:40 am
Forum: Processors
Topic: Old software and new hardware
Replies: 3
Views: 1676

Old software and new hardware

Have you tested some of the programs here: http://www.netlib.org/performance/html/PDSreports.html I have tested some on my Ryzen 1700 (3.7 GHz). Nsieve (max=6942, min 6001) Heapsort (max 4537, min 3349) Sim 6.1 sec MM (matrix multiply 500x500 with alternatives -n,-i,-t,-u,-m,-w,-r) This is much bett...
by Greyguy 1948
Thu Apr 20, 2017 8:15 am
Forum: Processors
Topic: VIA Nano lives on
Replies: 13
Views: 6057

Re: VIA Nano lives on

This 4 core Via Nano is close to AMD Jaguar in perf:
https://browser.primatelabs.com/v4/cpu/compare/1495379?baseline=2312897
by Greyguy 1948
Wed Apr 19, 2017 9:31 am
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 10910

Re: 80387 math coprocessors

http://performance.netlib.org/performance/html/new.spec.cfp92.col0.html Some results in floating point: Pentium Pro = 283 at 200 MHz Pentium = 120 at 133 MHz 486 DX4 = 27 at 100 MHz 486 DX2 = 19 at 66 MHz 68040 = 13 at 33 MHz Yes 68040 was not good enough for Apple, Motorola and IBM. For Power Mac ...
by Greyguy 1948
Tue Apr 18, 2017 2:13 pm
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 10910

Re: 80387 math coprocessors

http://performance.netlib.org/performance/html/new.spec.cfp92.col0.html
Some results in floating point:
Pentium Pro = 283 at 200 MHz
Pentium = 120 at 133 MHz
486 DX4 = 27 at 100 MHz
486 DX2 = 19 at 66 MHz
68040 = 13 at 33 MHz
by Greyguy 1948
Mon Apr 17, 2017 11:21 am
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 10910

Re: 80387 math coprocessors

Yes you could get a speed up around 10 times. It was good but a very long step to all the RISC alternatives like MIPS, PA-RISC or Pentium Pro (later).
by Greyguy 1948
Mon Apr 17, 2017 9:02 am
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 10910

Re: 80387 math coprocessors

I started with a math coprocessor with Turbo Pascal and Mandelbrot fractals. It was in the DOS time so I have tested them all 8087, 80287 and 80387. You could run Turbo Pascal without any coprocessor but it was really slow. These coprocessors were not great if you compare here: http://home.vianetwor...
by Greyguy 1948
Thu Mar 30, 2017 12:01 pm
Forum: Linux, Unix, and Assorted Madness
Topic: Multithreading Linux vs Windows
Replies: 7
Views: 8806

Re: Multithreading Linux vs Windows

Thank you for your replies! I were believing almost all Linux were the same (if they are X86_64). This is from Debian: http://benchmarksgame.alioth.debian.org/u64q/measurements.php?lang=gpp All results are with Core 2 Quad. Some multi-threding alternatives are tested like Open MP. Looking at SPEC al...
by Greyguy 1948
Thu Mar 30, 2017 4:31 am
Forum: Processors
Topic: Here's what a real 10nm process looks like (literally)
Replies: 12
Views: 3783

Re: Here's what a real 10nm process looks like (literally)

Interesting to see the future in CPU!
But after looking at the forums at Techreport and Anadtech I noticed that most people are interested in overclocking. It should be harder with 10 nm or even worse at 7 nm. But of course it is better for laptops needing long battery life.
by Greyguy 1948
Thu Mar 30, 2017 3:26 am
Forum: Linux, Unix, and Assorted Madness
Topic: Multithreading Linux vs Windows
Replies: 7
Views: 8806

Multithreading Linux vs Windows

http://numberworld.org/y-cruncher/guides/multithreading.html

I am a bit confused about this link.
Normally Linux is doing well regarding multithreading for example in Spec 2006 and Geekbench 4.
Anything abnormal with Ubunto?
by Greyguy 1948
Wed Mar 29, 2017 10:24 am
Forum: Linux, Unix, and Assorted Madness
Topic: Installing Linux on a USB stick.
Replies: 14
Views: 4369

Re: Installing Linux on a USB stick.

Installing on USB stick can work but it has to do with how it is downloaded. Fedora has an own downloader. Fedora 25 for my new Ryzen 64 bit is working now. I started with a boot download on a 8 GB stick, booted and downloaded the rest of the SW on a 32 GB stick. I have tested downloading Debian and...
by Greyguy 1948
Wed Mar 29, 2017 9:36 am
Forum: Linux, Unix, and Assorted Madness
Topic: Desktop environments suck
Replies: 76
Views: 15890

Re: Desktop environments suck

Hello, I am new on TR.
Interesting thread!
I am very fond of what I have in Raspberry Pi 3- nothing in Windows is better except the printer data base.
To run my new Ryzen I have tested for example Fedora and Linux Mint but they are worse.
GZIP: On