Monday Dec 21, 2009

Last.fm - How do they stream all that data ?

Last.fm is a great case of a Sun Startup Essential customer starting off two years ago by discussing their architecture, and how could Sun help them as a startup, well two years down the line we have saved them money, reduced their output and helped them scale beyond boundaries they didnt think feasible, Mike Brodbelt explains their latest success using SSD's to stream to a new audience, XBOX LIVE.


The music streaming architecture at Last.fm is an area of our infrastructure that has been scaling steadily for some time. The final stage of delivering streams to users fetches the raw mp3 data from a MogileFS distributed file system before passing it through our audio streaming software, which handles the actual audio serving. There are two main considerations with this streaming system: physical disk capacity, and raw IO throughput. The number of random IO operations a storage system can support has a big effect on how many users we can serve from it, so this number (IOPS) is a metric we’re very interested in. The disk capacity of the cluster has effectively ceased being a problem with the capacities available from newer SATA drives, so our biggest concern is having enough IO performance across the cluster to serve all our concurrent users. To put some numbers on this, a single 7200rpm SATA drive can produce enough IOPS to serve around 300 concurrent connections.

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Startup of the Day: Audiocation

Heute möchten wir Ihnen die Audiocation vorstellen.

Audiocation ist ein junger Startup der sein Geschäft mit einer Sun Fire X4150 startete um mit Internettechnologien Audioprofis zu unterstützen. Audiocation arbeitet mit Künstlern wie Till Kersting und Studios wie z.Bsp. Skyline-Mastering eng zusammen um die Studierenden optimal zu betreuen.

Audiocation - Die Audio Akademie

Audiocation ist die Audio-Akademie für Tontechnik- und Musikproduktion. Die webbasierte Ausbildung vermittelt die von Audioprofis entwickelte „listen / learn / create“-Methode in den Kursen: Audio Engineering, Music Production und Drum Programming.


Audiocation richtet sich sowohl an Homerecorder und Homeproducer, die ihre musikalischen Fähigkeiten verbessern wollen, als auch an fortgeschrittene Medienschaffende, die eine zusätzliche Qualifikation für einen Beruf im Bereich der Medienproduktion beispielsweise in Tonstudios, bei Rundfunk oder im TV erwerben wollen.

Alle Aufnahmen werden speziell auf die jeweiligen Wissengebiete ausgerichtet und entstehen in enger Zusammenarbeit mit professionellen Musikern, Tontechnikern und Produzenten. Hierdurch erhalten die Studierenden hochwertige Aufnahmen und wertvolle Informationen aus erster Hand von erfahrenen Spezialisten. Alle Lerninhalte von Audiocation werden durch Videos, Animationen, Klangbeispielen und praktische Aufgaben multimedial veranschaulicht und präsentiert. Der Studierende erhält individuelle Feedbacks zu seinen eingereichten Arbeiten und erhält persönlichen Support durch die Dozenten via Telefon und E-Mail.

Zugang zum kostenlosen Guest Account gibt es hier.

Ein Bericht über Audioprofis ohne Audio geht nicht. Viel Spaß mit dem toll gemachten Youtube Video:

Wednesday Sep 16, 2009

SoundCloud - Sun Servers, Open Storage and Startup Essentials Program Help Support Monthly Growth of 25% at Web 2.0 Startup

Founded in 2007, SoundCloud provides a Web-based platform that is transforming the way music is shared. Over 250,000 customers — including artists and other music professionals — already rely on SoundCloud to send, receive, and distribute music. Based in Berlin, Germany, the company employs 12 people.

Customer Challenges

  • Support exponential growth
  • Speed IT productivity
  • Accelerate site response times
  • Increase availability

Solution

SoundCloud took advantage of Sun Startup Essentials to migrate its Web server stack to a solution that includes virtual servers and a hybrid storage pool built with Sun technologies. Hosted and managed by London-based EveryCity, the new architecture quickly scales with growth, delivers the raw performance customers expect, and gives SoundCloud employees the ability to focus on expanding the business.

Business Results

  • Reduced application maintenance by 50%
  • Averaged a 25% increase in customers each month
  • Scaled to support a tenfold increase in Web traffic
  • Increased site performance
  • Realized 99.99% application availability
FOR THE FULL STORY READ HERE - Do you want to be part of Sun Startup Essentials along with SoundCloud - SIGN UP HERE

Friday Jun 12, 2009

Twitter Growth - An indepth look inside the data


Over the past few months, Twitter has experienced explosive growth, attracting celebrity users such as Oprah, and a growing mountain of media and blog coverage. Sysomos Inc., one of the world's leading social media analytics companies, conducted an extensive study to document Twitter's growth and how people are using it. After analyzing information disclosed on 11.5 million Twitters accounts, we discovered that:

  • 72.5% of all users joining during the first five months of 2009.
  • 85.3% of all Twitter users post less than one update/day
  • 21% of users have never posted a Tweet
  • 93.6% of users have less than 100 followers, while 92.4% follow less than 100 people.
  • 5% of Twitter users account for 75% of all activity
  • New York has the most Twitters users, followed by Los Angeles, Toronto, San Francisco and Boston; while Detroit was the fast-growing city over the first five months of 2009
  • More than 50% of all updates are published using tools, mobile and Web-based, other than Twitter.com. TweetDeck is the most popular non-Twitter.com tool with 19.7% market share.
  • There are more women on Twitter (53%) than men (47%)
  • Of people who identify themselves as social media marketers, 65.5% have never posted an update
  • Of the people who identify themselves as marketers, 15% follow more than 2,000 people. This compares with 0.29% of overall Twitter users who follow more than 2,000 people.

"We wanted to take an extensive snapshot of Twitter that goes far beyond anything done to document Twitter's use, growth and demographics," said Nick Koudas, Sysomos' co-founder and chief executive. "While Twitter's growth has been well documented, we wanted to put the spotlight on how people use Twitter, as well as identify many of the key trends in their backgrounds, demographics and activity. Our study, based on the most comprehensive dataset of Twitter users, provides a wealth of information for anyone interested in getting in-depth details about Twitter."

This is an interesting report that has been produced from 11m+ profiles on twitter data and characteristics of its users, for the full report and to download then go to http://www.sysomos.com/insidetwitter/.

Its interesting that the media hype has increased the user base but again that has then increased the amount of people doing nothing, thus it is still the top 30% of the users who are generating the traffic and making it look like there is more activity, whilst an interesting fact is more than 65 of the so called social marketers have never even tweeted !!!

Go and read it now, a great concise set of data points that dismisses some of the hype this year over the user base and activity around Twitter.


Friday Jan 30, 2009

Soundcloud up and running on Sun servers, Solaris and a mixed architecture.

http://blog.soundcloud.com/2009/01/29/faster/

So Sun is great at making clever hardware and software, glue it together and it works, but its our partners that deliver and deploy this, so Ive been working with Every City since last summer, they are a Startup Essential member, and have moved to a Sun/Solaris infrastructure through their own decision. What really makes a difference is their personal focus, by being part of the community, they understand the pain points and how to solve the problems that exist, and this shines through so much with SoundCloud. So a big massive thanks to Every City for listening, and deploying a solution that is flying, at a price point the startup can afford and also buying the beer for startups as well..


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