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Showing posts from June, 2012

A sweep through my Instapaper for June 2012

I'm not sure if I'll do this every month, but it does seem like a good way of recapitulating the last month in terms of interesting blog posts and articles that came my way. So here's my list for the month of June 2012: Latency numbers every programmer should know -- from cache references to intercontinental network latency, some numbers that will help you do those back-of-the-envelope calculations when you need to speed things up in your infrastructureCynic -- test harness by Ruslan Spivak for simulating remote HTTP service behavior, useful when you want to see how your application reacts to various failures when interacting with 3rd party servicesAmazon S3 performance tips and tricks -- some best practices for getting the maximum performance out of S3 from Doug Grismore, Director of Storage Operations at AWSHow to stop sucking and be awesome instead -- Jeff Atwood advises you to embrace failure, ship often, listen to feedback, and more importantly work on stuff that matt…

Installing and using sysbench on Joyent SmartOS

If you read Percona's MySQL Performance blog (and if you run MySQL in production, you should!), then you know that one of their favorite load testing tools is sysbench. As it turns out, it's not trivial to install this tool, especially when you have to install from source, for example on Solaris-based systems such as the Joyent SmartOS machines. Here's what I did to get it to work.

Download source distribution for sysbench
I downloaded the latest version of sysbench (0.4.12) from the Sourceforge download page for the project.

Compile and install sysbench
If you launch a SmartOS machine in the Joyent cloud, you'll find out very quickly that it's lacking tools that you come to take for granted when dealing with Ubuntu or Fedora. In this case, you need to install compilers and linkers such as gcc and gmake. Fortunately, SmartOS has its own package installer called pkgin, so this is not too bad.
To see what packages are available if you know the tool you want to install,…

Using the Joyent Cloud API

Here's some notes I took while doing some initial experiments with provisioning machines in the Joyent Cloud. I used their CloudAPI directly, although in the future I also want to try the libcloud Joyent driver. The promise of the Joyent Cloud 'SmartMachines' is that they are really Solaris zones running on a SmartOS host, and that gives you more performance (especially I/O performance) than regular virtual machines such as the ones offered by most cloud vendors. I have yet to fully verify this performance increase, but it's next on my TODO list.

Installing the Joyent CloudAPI tools


I did the following on an Ubuntu 10.04 server:

installed node.js -- I downloaded it in tar.gz format from http://nodejs.org/dist/v0.6.19/node-v0.6.19.tar.gz then I ran the usual './configure; make; make install'installed the Joyent smartdc node package by runing 'npm install smartdc -g'created new ssh RSA keypair: id_rsa_joyentapi (private key) and id_rsa_joyentapi.pub (public…