Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!execu!sequoia!rpp386!jfh
From: jfh@rpp386.cactus.org (John F Haugh II)
Newsgroups: comp.unix.internals
Subject: Re: Fundamental defect of the concept of shared libraries
Message-ID: <19318@rpp386.cactus.org>
Date: 20 May 91 13:56:41 GMT
References: <184@titccy.cc.titech.ac.jp> <1991May16.002617.15386@ladc.bull.com> <197@titccy.cc.titech.ac.jp> <1991May16.200702.7476@Think.COM> <209@titccy.cc.titech.ac.jp>
Reply-To: jfh@rpp386.cactus.org (John F Haugh II)
Organization: Lone Star Cat Emporium and BBQ Grill
Lines: 15
X-Clever-Slogan: Help Prevent Robbery.  Tax the IRS.

In article <209@titccy.cc.titech.ac.jp> mohta@necom830.cc.titech.ac.jp (Masataka Ohta) writes:
>The call overhead is six extra cycles with typical RISCs, whenever an
>inter-object-file (not inter-library) call-return takes place. It is
>not negligible when we are heavyly doing something like strcmp().

The CPU overhead to field an unneeded page fault caused by too many
statically bound executables will dominate your little 6 cycle hit
the first time it happens.  Trust me.  I'd rather have a slightly
slowed down, CPU bound process, than a system thrashing about all
day and night because it doesn't support shared libraries.
-- 
John F. Haugh II        | Distribution to  | UUCP: ...!cs.utexas.edu!rpp386!jfh
Ma Bell: (512) 255-8251 | GEnie PROHIBITED :-) |  Domain: jfh@rpp386.cactus.org
"If liberals interpreted the 2nd Amendment the same way they interpret the
 rest of the Constitution, gun ownership would be mandatory."