Some Cool Perf Analysis Tool I Recently Discovered

While troubleshooting disk latency ghosts (see my previous blog entry on AMD Opteron processors), i came across a set of tools. Apparently these tools have been around awhile, but I never knew.

Here is the link to them:

Here is a quick summary of the tools:

The DiskSpd program to measure disk bandwidth (
The NetSpd program to measure network bandwidth (
The MemSpd program to measure memory bandwidth (
The GenFile program to quickly create large disk files with randomized content (
The DumpFile program displays sections of arbitrarily large files in hex and/or ASCII (

They were helpful this week and I’ll add these little guys to my performance analysis toolkit.

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