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OSProfiler provides a tiny but powerful library that is used by most (soon to be
all) OpenStack projects and their python clients. It provides functionality to
generate 1 trace per request, that goes through all involved services. This
trace can then be extracted and used to build a tree of calls which can be quite
handy for a variety of reasons (for example in isolating cross-project
performance issues).
WWW: https://docs.openstack.org/osprofiler/latest/
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