Nick Gerner

[...] Results Objectives of Perf Testing Understand performance characteristics of the system: Response Time: how long a user waits for pages to load Throughput: how many pages the system can deliver per [...]

[...] low cost systems do we use for operational and performance monitoring? What is the throughput, response time, etc. of our system, end-to-end? How do each of the software and cloud infrastructure [...]

[...] I’m the lead developer on the Linkscape API), I decided I’d write a small application using the Linkscape Free API to help with a [...]

[...] plan. Given that our application incorporates data from an external data source (the Linkscape API ) we can’t expect sub second response times.  But page loads should not take more than [...]

[...] nodes, fix bugs, build better architecture) before any negative business impact occurs. Client-Side Performance In addition to measuring server-side performance, you get bonus points for putting [...]

[...] ;re looking for are: System Characteristics and Bottlenecks (cpu, disk, memory, network) Client-Side performance and responses (response time, throughput, HTTP status codes) Server-Side errors ( [...]

[...] ) Client-Side performance and responses (response time, throughput, HTTP status codes) Server-Side errors (application and web server logs) A deeper discussion of all these factors is valuable, but [...]

[...] suggestion of Keynote, but I’ve never used them); but it’s better than nothing. Server-Side Errors You’ll almost certainly uncover some errors under load.  You’ll want to make [...]

[...] Last weekend I started to dig into the Netflix API.  The power of their API is phenomenal. Pretty much everything you do on the Netflix site, you [...]

[...] , my data aggregation server is usually at 50% CPU I/O wait time due to writing all the perf data it collects.  Below is a sample configuration file to give you an idea of what collectd [...]

[...] queries.  For instance, If know that Shutter Island opened last weekend, and want to get some Netflix data about it, I first have to make a search request on “Shutter Island” before I can [...]