User beancounter patch IV-0004

From: Andrey Savochkin (saw@saw.sw.com.sg)
Date: Fri Jun 23 2000 - 09:11:09 EST


Hello,

I've put an updated version of user beancounter patch intended to provide
advanced resource control and protection against local denial-of-service
attacks.

It contains just some bugfixes, namely:
 - incorrect memory accounting for CLONE_VM-cloned tasks;
 - a small mistake in RSS accounting;
 - mremap() memory accounting leak;
 - cosmetic fix for always-false `if' statement;
 - Configure.help correction (thanks to Keith Owens <kaos@ocs.com.au>
   reporting the inaccuracy).

At this moment I'm investigating how different modifications of swap-out
algorithm providing RSS guarantees behave under different types of load.

Patch web page is
http://www.asplinux.com.sg/install/ubpatch.html
the patch itself
http://www.asplinux.com.sg/install/user_beancounter-IV-current

The small program for patch testing
http://www.asplinux.com.sg/install/ulim4.c
accidently disappeared from the site, I've put it back.
Sorry to those who tried to get it, and thanks to Marcelo Tosatti for the
notice.

Best regards
                                        Andrey V.
                                        Savochkin

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