2008-07-01
when it rains it pours - whats new in monitoring and metrics
so on the RRD mailing list there is a discussion on how to write a RRD server/accelerator to help speed up RRD. which is a great tool, but when you abuse it and try to capture hundreds of thousands of metrics it kinda uses a bit too much disk I/O. (read swamps the system)
So imagine my surprise when I noticed that orbitz has recently open ...
2006-07-09
Announce: Performance monitoring for Django
Perfmon is a tool to help you diagnose your performance and QA issues within your "Django":http://djangoproject.com application. I've decided to charge $20 for it. People using it for debugging open source projects can get it for free. Is this a sell out? I hope people don't see it this way.
2005-12-08
What is 99% uptime anyway?
in Don’t scale: 99.999% uptime is for Wal-Mart he mentioned that 37signals is quite happy with 98% uptime, and the cost of increasing uptime isn't worth it. Here is a brief summary of what a extra '9' will give you as far as uptime. (as a rule of thumb, each extra nine you add a extra zero at the end of the price it will ...
2005-09-21
progress on my poor machine
the first thing I did was reduce the number of active threads on the webserver, and that reduced the process creation rate by half. which was a good start. Now this where statistics lie, or to put it more precisely don't tell you what you think they are telling you. I first looked at 5 minute averages and assumed that it was constant throughout the 5 minutes ...
2005-09-20
A tweak here and a tweak there
So.. people at work have been complaining about one my monitoring servers continually freaking out, and being slow..
so I thought.. why not open up a 2nd port with just mod-perl replacing some dodgy CGIs, freeing up some connections on the original port making it snappier at the same time.. win-win.
This is what I wake up to ;(.
The machine has gone beserk. for some reason a 'stable ...