[TriLUG] monitoring linux webserver performance

[Christopher L Merrill]

The context is monitoring the performance of a *web application* deployed
on a Linux machine.

Currently, our software monitors CPU utilization and memory (% available).

We are going to add monitoring of more detailed stats, such as:
- context switches/sec
- page reads and writes/sec
- packets received and sent/sec
- packet send errors/sec
- collisions/sec (is this even relevant for modern network architectures?)
- disk reads and writes/sec

These are all relatively easy to get via /proc/stat, /proc/meminfo and
/proc/net/dev.

What else would a network/linux admin look at to help the testers and
developers locate performance bottlenecks?

TIA,
Chris


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Chris Merrill                           |  Web Performance, Inc.
chris at webperformance.com                |  http://webperformance.com
919-433-1762                            |  919-845-7601

Website Load Testing and Stress Testing Software & Services
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