Date: Thu, 4 Sep 2003 11:58:48 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Tim Kientzle <kientzle@acm.org> Cc: Paul Richards <paul@inty.com> Subject: Re: Text file busy Message-ID: <200309041858.h84IwmUv029227@apollo.backplane.com> References: <1062686653.67807.77.camel@localhost> <3F578250.7020100@acm.org>
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:Tim
:
:P.S. I wonder if demand-paging of executables is still a win for
:program startup on modern systems with dynamically-linked executables?
:Large reads are a lot more efficient, and it seems that dynamic
:linking might cause more startup thrashing. Hmmm...
Yes, they are a big win 95% of the time. Don't worry, the kernel will
pre-fault pages that are already cached in memory (to a point), and
the kernel will also cluster pagein operations if actual I/O becomes
necessary.
-Matt
Matthew Dillon
<dillon@backplane.com>
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