Re: Session-Id

In article <> James Pitkow writes:
>Further more, the generation of unique ids on the server side means
>that some shared memory is used, which means locking, which means
>blocking.  This can only serve to decrease the throughput of servers
>(what's the point of issuing unique ids if you turn away half of the users
>away?).  Additional resources (computational and memory) are consumed 
>by the management of ids and their recycling.

No, for a preforked server each preforked process uses its id plus a counter
which it increments for each request.  For a threaded or forking server there
is only one counter which is incremented before forking.

>If a client generates an id, the server simply logs this to file

which means locking, which means blocking...  ;)


John Franks 	Dept of Math. Northwestern University

Received on Friday, 21 July 1995 22:06:13 UTC