Tag Archives: heat map

The sort of latency heat map you don’t want to see!

We’ve had a couple of short lived, but very inconvenient I/O latency issues recently. I’ve been using the awesome¬†Latency Heat Map Visualization by Luca Canali as one of the tools to investigate this. I’m guessing this isn’t the type of I/O latency heat map most people would want to see from a production system.   […]