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by miker00lz
Wed Jun 13, 2018 12:51 am
Forum: Troubleshooting
Topic: Noisy audio in Pi Zero W car installation
Replies: 0
Views: 201

Noisy audio in Pi Zero W car installation

I've installed a Pi Zero W inside my car's dash connected to the head unit for displaying video. It's set up to automatically connect to my phone as a mobile hotspot and then uses omxplayer to stream live video from my home, which can be whatever I want. Live TV from cable or whatever. It works grea...
by miker00lz
Wed Mar 05, 2014 3:24 am
Forum: Other programming languages
Topic: .exe compilation
Replies: 7
Views: 1769

Re: .exe compilation

I know it's kind of cheesy to push my own software, but you might want to try my emulator Fake86 instead of 8086tiny. 8086tiny is kind of flaky, even though the code size is impressive. It'll work with whatever disk image(s) you've been using in 8086tiny. http://sourceforge.net/p/fake86 Grab it with...
by miker00lz
Mon Jun 10, 2013 6:23 pm
Forum: General discussion
Topic: minecraft download
Replies: 3
Views: 940

Re: minecraft download

I assume you're talking about the instructions here: http://pi.minecraft.net/ What exactly is the problem? I need more details to help. If you're able to extract the files from the archive, but you just can't start the game, it's because there is an error in their instructions. They say to start it ...
by miker00lz
Mon Jun 10, 2013 8:59 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

Is it normal for a full up Linux running computer costing 48 Euro (A rather high off the shelf price in my local store), consuming only 1 Watt and being the size of a credit card to be able to calculate a million digits of Pi in 17 seconds? That's a first in my experience. All things considered, th...
by miker00lz
Mon Jun 10, 2013 8:51 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

The Pi isn't a fast computer by today's standard but it's perfectly acceptable as a web server, file server, media centre or poorman's digital I/O interface kit. Qemu runs quite slow on the Pi and that's because translating every Intel instruction set into ARMv6 code is time consuming. On the flip ...
by miker00lz
Mon Jun 10, 2013 8:46 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

You cannot really vcompare clock speeds. x86 (and other CISC architectures) can run more instructions per cycle than Arm, hence the equivalence of 700Mhz Pi with 300-400 Mhz Pentium. Newer ARM's are much better per cycle than the v6 in the Raspi though. Yeah, this is why I was surprised. I've never...
by miker00lz
Mon Jun 10, 2013 8:38 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

I've always been quite impressed with the speed of the Pi. Being cool is not about jamming a gazillion cores into your architecture so that every jack&jill script kiddie can do a sloppy coding job and have their buggy convoluted mess run at a half decent speed, if even that. The world would be a be...
by miker00lz
Mon Jun 10, 2013 8:29 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

A test I made put the CPU (running on 700MHz) between a Pentium II 450MHz and a Pentium III 800MHz. This was entirely CPU bound with practically no I/O. So the CPU should be a little faster than your result indicates, but at least compiling things means lots of reading and writing from "disk", whic...
by miker00lz
Mon Jun 10, 2013 6:48 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

ghans wrote:Make sure you aren't using a preloaded card. The latest software
has many improvements.


ghans
No, I used my own 16 GB SDHC card. (Class 10 rating) It's running the current version of Raspbian.
by miker00lz
Mon Jun 10, 2013 6:44 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Re: Is it normal for the RasPi to be this slow?

Is it normal for ARM to perform so badly compared to an old PowerPC machine? For the ARM core on the Pi, yes. It isn't one of the fastest ARMs around. In fact it's quite an old, slow one. It has been stated many times that the Pi is about the speed of an old Pentium I/II PC. Whilst the CPU power ma...
by miker00lz
Mon Jun 10, 2013 12:32 am
Forum: General discussion
Topic: Is it normal for the RasPi to be this slow?
Replies: 18
Views: 2293

Is it normal for the RasPi to be this slow?

I don't have much experience with ARM-based systems, so forgive me if this is a dumb question. Even overclocked to 1.0 GHz, my Pi is much slower than even my 14-year-old 400 MHz iMac with a PowerPC G3. This is based on head-to-head comparison of the same software. The Pi is running the Wheezy versio...
by miker00lz
Mon Jun 10, 2013 12:10 am
Forum: General discussion
Topic: How much can I overclock?
Replies: 9
Views: 3617

Re: How much can I overclock?

I've got my raspi running at 1.0 GHz CPU, 500 MHz SDRAM clock, overvolt is set to 6. I'm using force_turbo as well. It's totally stable, I have QEMU running on it right now. Windows Server 2003 guest OS installed, and it's been running perfectly with a full-time 100% CPU load for 2 days. The CPU isn...

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