Refactor for better performance#115
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rnburn
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jmacd
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Aug 27, 2018
| //------------------------------------------------------------------------------ | ||
| // constructor | ||
| //------------------------------------------------------------------------------ | ||
| LightStepImmutableSpanContext::LightStepImmutableSpanContext( |
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nit: I would be slightly inclined to remove the LightStep prefix since you're in namespace lightstep.
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Yeah, it's a little redundant.
I used names like LightStepSpan, LightStepTracer, etc to keep them from clashing with the opentracing names in case you happen to use both namespaces; then chose this name to be consistent. But maybe I should rename them all.
I'll merge in as is for now and maybe make a separate PR to rename everything.
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Refactors code for a modest performance improvement. These are benchmarks from before and after. The benchmarks from the CircleCI machines can be a little noisy, but I got similar improvements testing on my laptop.
This is the summary of the changes:
collector::Spanprotobuf object directly to avoid copying in theFinishmethod.SetTagis called twice with the same key, both values are sent and the satellite is expected to take the latest version.LightStepSpanContextso thatcollector::Spancan be used to store the context and only a single mutex is required.