Serializing accept(), AKA Thundering Herd, AKA the Zeeg Problem — uWSGI 2.0 documentation
After having forked itself a bunch of times, each process will generally start blocking on accept() The funny problem is that on older/classic UNIX, accept() is woken up in each process blocked on it whenever a connection is attempted on the socket. Only one of those processes will be able to truly accept the connection, the others will get a boring EAGAIN. This results in a vast number of wasted
Commentary on the Sixth Edition UNIX Operating System
This directory contains a copy of John Lions' “A commentary on the Sixth Edition UNIX Operating System”. This form of the document is the one that Warren Toomey published on the USENET alt.folklore.computers newsgroup in May 1994, with corrections supplied by Brian Foley in 2014 and incorporated into the source by Conway Yee in August 2023. It's available in several forms: The book in PDF, for pri
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