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by gnufx
2418 days ago
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perf and its ilk are obviously useful, but you need to be aware of several cans of worms with sampling hardware counters, in particular. These include the timing mechanism for sampling, the documentation and intrinsic usefulness of particular counters, and issues with multiplexing more than what can be used simultaneously. For multiplexing see, for instance, https://www.research.manchester.ac.uk/portal/files/59933625/... |
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