scale

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Video of Mark Maunder at STS talking about scaling his widget business, feedjit.

Quoted: This lick works over a minor II V I and is based on the D harmonic minor scale. The harmonic minor scale is a natural minor scale with a raised 7th note (C# in this case) which gives us the 3rd for the dominant chord (A7) of the minor key. Played over the dominant chord the harmonic minor scale gives us tensions b9 en b13. The harmonic minor scale is a very common sound in jazz.

In theory, this can do an hour's worth of work in one second. That is a lot of horsepower. Glad I'm not paying the power bill.

Quoted: • 4000 nodes
• 2 quad core Xeons @ 2.5ghz per node
• 4x1TB SATA disks per node
• 8G RAM per node
• 1 gigabit ethernet on each node
• 40 nodes per rack
• 4 gigabit ethernet uplinks from each rack to the core (unfortunately a misconfiguration, we usually do 8 uplinks)
• Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
• Sun Java JDK 1.6.0_05-b13
• So that's well over 30,000 cores with nearly 16PB of raw disk!

Interesting writeup of hacking MySQL to dirty memcached entries after replication sync.

Quoted: REPLACE INTO profile (`first_name`) VALUES ('Monkey') WHERE `user_id`='jsobel' MEMCACHE_DIRTY 'jsobel:first_name'

Whitepaper from Amazon describing how to build more scalable web applications using their Simple Queuing Service (SQS).

Scaling with Rails.

My friend Peter's consulting business. Peter worked on performance at MySQL, and he writes the extremely useful MySQL Performance Blog. These guys know their stuff.

A discussion of avoid notes.

Quoted: How to use different scales in jazz improvisation

Quoted: Jazz guitar lesson: the bebop scale. How does this scale look on the guitar and what can I do with it + examples in tablature.