Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!ukc!edcastle!dcl-cs!aber-cs!pcg
From: pcg@aber-cs.UUCP (Piercarlo Grandi)
Newsgroups: comp.windows.x
Subject: Re: X terminals on an ethernet
Summary: Local swap? Sticky those damn executables!
Message-ID: <1637@aber-cs.UUCP>
Date: 14 Feb 90 23:57:42 GMT
Reply-To: pcg@cs.aber.ac.uk (Piercarlo Grandi)
Followup-To: comp.unix.wizards
Organization: Dept of CS, UCW Aberystwyth
	(Disclaimer: my statements are purely personal)
Lines: 20

In article <6846@celit.fps.com> dave@fps.com (Dave Smith) writes:
    
    Our network here has over 50 Suns on it, plus about 10 larger machines.
    The Suns all have local disks for swapping, but load most of their objects
    across the network.

Just an aside (and I have redirected to comp.unix.wizards): if you have a
local swap (hurrah!) on your "diskless", set the sticky bit on the most
frequently invoked or large executables. It depends a bit on which OS you
run, but for most this will keep the image around in the swap partition and
save on repeated fetches from the network.

Now that the kernel automaically deletes images from swap if it needs
swap space, it pays a lot (also to avoid swap space fragmentation) to
sticky executables, and not just if they are very frequently but not
continously invoked. This includes many X applications...
-- 
Piercarlo "Peter" Grandi           | ARPA: pcg%cs.aber.ac.uk@nsfnet-relay.ac.uk
Dept of CS, UCW Aberystwyth        | UUCP: ...!mcvax!ukc!aber-cs!pcg
Penglais, Aberystwyth SY23 3BZ, UK | INET: pcg@cs.aber.ac.uk