Tom Limoncelli:
The paper "News Need Not Be Slow" by Geoff Collyer and Henry Spencer is
located at utoronto and many other locations, [including UUNET, as
/networking/news/cnews/doc/usenix87.doc.Z.]

The paper goes into technical details about what exactly was done
to make C news so fast.

                          ABSTRACT

          C news is a re-write, from  scratch,  of  the
     `transport layer' of the Usenet software.  C rnews
     runs at over 19 times the  speed  of  B  rnews;  C
     expire runs in minutes rather than the hours taken
     by B expire.  These performance improvements  were
     (mostly)  quite  simple  and  straightforward, and
     they exemplify general principles  of  performance
     tuning.

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