Subject: Re: fine-tunable swap (was Re: Drive numbering...)
To: Mark W. Eichin <email@example.com>
From: Open Carefully -- Contents Under Pressure <greywolf@defender.VAS.viewlogic.com>
Date: 11/16/1995 17:56:44
#define AUTHOR "firstname.lastname@example.org ("Mark W. Eichin")"
* > Combine the two thoughts, and you have a fine-tunable paging system.
* > It would certainly be nice to have the ability to establish how much
* > swap you *really* need (and how little you can get away with), instead
* On the linux lists, this usually leads to the leap of having a daemon
* that monitors available free virtual memory and adds and removes swap
* on demand... I think it even got implemented (as an independent
* daemon) in spite of all the ranting about why it was such a bad idea :-)
Okay, I wasn't thinking that radical -- I was thinking more along the lines
of simply observing the behaviours of a system and tuning it that way.
* ... (Really, what
* you want is what Apollo Domain/OS had -- as a side effect of other
* parts of the Multics-inspired design, free disk could be consumed for
* swapping just as easily as for files, and returned dynamically as well...)
Um, yeah, that would be *really* cool!
I suspect that it would be next to impossible to implement given current
design constraints. But then, so is an efficient VM.
#undef AUTHOR /* "email@example.com ("Mark W. Eichin")" */
System V any flavor: just say NO!