Posted on February 7, 2016, 8:31 pm by Dan
1. Classification
Before getting into action, let’s split the “performance” problem in a couple of boxes, as the concept itself is quite general. First, deciding what we want to monitor (an entire system? a particular application?) – and second, deciding on what type of performance monitoring do we require (stats collection by the kernel? in-depth analysis?). Based on this particular classification, we may end up with 4 categories, each with its particular software selection:
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Stats (Counters) |
Tracing / Profiling / Debugging |
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System Wide |
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Per Process |
NB:
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netstat offers much more info beyond statistics on interface / protocol and may also be used to monitor individual connections.
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dtrace and SystemTap can also trace individual applications.
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