Comment by aristus

I'd take this chart with a grain of salt, given the FB paper. Peregrine is no longer in service, IIRC. It was a friendly rival to Scuba, and was eventually replaced by Presto, which is not even mentioned. Also not mentioned are several important things like the pub/sub ecosystem built on Scribe. Haystack is long dead, except for maybe some archived stuff. Lastly, PHP-to-C++ has not been a thing since early 2012.