Subject: Re: UBC usage-balancing code is checked in.
To: Chuck Silvers <firstname.lastname@example.org>
From: Hubert Feyrer <email@example.com>
Date: 03/09/2001 12:57:55
On Thu, 8 Mar 2001, it was written:
> add UBC memory-usage balancing. we track the number of pages in use for
> each of the basic types (anonymous data, executable image, cached files)
> and prevent the pagedaemon from reusing a given page if that would reduce
> the count of that type of page below a sysctl-setable minimum threshold.
> the thresholds are controlled via three new sysctl tunables:
> vm.anonmin, vm.vnodemin, and vm.vtextmin. these tunables are the
> percentages of pageable memory reserved for each usage, and we do not allow
> the sum of the minimums to be more than 95% so that there's always some
> memory that can be reused.
So do I understand this right:
To make sure my heavily-used apps are not paged out, I'd go and add up
their memory footprint (op SIZE column?), and use that as vm.vtextmin?
Hubert Feyrer <firstname.lastname@example.org>