Questions tagged [performance]

Questions about software, hardware or network performance. Please use as a supplement for other, more specific tags.

203 questions
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6 answers

How do I determine the current MHz?

I've been trying to get an accurate reading of my Raspberry Pi's MHz, since I overclocked it in /boot/config.txt My /boot/config.txt is as following: pi@raspbmc:~$ cat /boot/config.txt arm_freq=900 gpu_freq=350 disable_overscan=1 List of things I…
Sjaak Trekhaak
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48
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9 answers

Can the Raspberry Pi be used as a media center?

I am looking for a simple solution to play videos and music stored on my NAS. I've found the Raspberry Pi and projects like OpenElec and RaspBMC which will run XMBC on the board. My problem is that I've found inconsistent reviews regarding the…
ccellar
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43
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2 answers

What kind of performance can I expect from using a Raspberry Pi as a webserver?

Has anyone done some web server benchmarking on their Raspi? I don't have my Raspi yet but I'm planning on using it as a web server and I'm interested to see stats for: Number of requests per second Latency response time between requests Throughput…
ToniWidmo
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43
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3 answers

Why does the Raspberry Pi need a MPEG-2 licence?

Since August 24 2012 , it is possible to buy a licence to hardware-decode MPEG-2 videos. Here are my questions: Does it mean that, without this licence, the RPi cannot handle at all MPEG-2 video, or it will struggle to play it smoothly? In what form…
Morgan Courbet
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38
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5 answers

What are the overclocking capabilities?

I've not ordered mine (yet!), but I do some overclocking as a hobby to the extent that my netbook, Android phone, desktop, and even my wife's Blackberry are overclocked. Is there potential to overclock the RPi beyond stock voltage and speeds? I…
Kyle Macey
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36
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4 answers

What is the highest performing hardware configuration?

I know that exact benchmark numbers will vary between manufacturers, but in general if you only consider higher end flash drives, SD cards, and USB HDDs and your Raspberry Pi is connected to a network via an ethernet switch what is the fastest…
Dan B
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34
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3 answers

What speed can I expect from the hardware-H264-encoding?

I stumbled over the Wikipedia-article that the Broadcom GPU has hardware support for encoding H.264/AVC, not only de -coding. I also found an article where someone gave an example using ffmpeg to generate a h264/mp4 video files. Ok, its a…
towi
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32
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6 answers

What is a typical boot time for the standard Debian distribution on a typical SD card?

How long does the RasPi take to boot when using the standard Debian distribution on a typical SD card? Are we talking less than a second? A couple of seconds? 10 seconds? 100 seconds? This isn't too important for most users and applications, but…
winwaed
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30
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4 answers

Is there anything I can do to improve boot speed?

I love my Pi, but it takes a considerable time to boot. If I want to use it as a Media Centre, it's quite important that it powers up quickly. Are there any steps I can take to improve boot performance?
Jivings
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27
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5 answers

Why is my SD card slow?

My SD card seems to be running slow. I have an ADATA 16 GB SDHC Class 10 card. I checked the compatibility list which lists a card with similar specifications, and it states that it is "working". Even simple tasks like getting a directory listing on…
Kibbee
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25
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1 answer

How do I turn on Level 2 (L2) cache?

It has been suggested to me that the L2 cache is turned off by default on the Pi, and that turning it on could improve CPU performance (probably at the expense of GPU performance). I'm keen to explore this. This is my questions: How do I check if…
Darren Wilkinson
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24
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3 answers

Where is the bottleneck of web browse speed on raspberry pi?

On a Model B 512 MB Pi with Raspbian “wheezy”, I have tried Midori, Chromium and Iceweasel. When the web page gets larger, loading is slow, even after I overclocked it to 1 GHz. On an Android phone with a 1 GHz CPU, the web page loading seems much…
hello.wjx
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24
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6 answers

How can I stress test my Raspberry Pi

I recently picked up a battery powered USB cell phone charger and I'm running some tests to see what kind of battery life I will get. Right now I'm just testing at Idle. I want to also run a test using as many resources as possible. It seems easy…
Kibbee
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23
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1 answer

Can I stream 1080p video from the Pi?

We all know the Pi can play 1080p video no problem, but is it fast enough to act as the basis for a file server that can stream 1080p video over its wired network connection? I'm thinking of using mine as a media server of sorts to stream 1080p HD…
berry120
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21
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1 answer

How can I use a USB HDD to extend the life of my SD Card?

How can I set up a USB HDD to extend the life of my SD Card and maximize the performance of my Raspberry Pi? Related: How can I extend the life of my SD card?
Andrew Fogg
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