RE: Disk scheduling in FreeBSD

2003-03-06 Thread Paul Robinson
Adam Migus wrote: > So if you gimme webspace can i promise you code and > output shortly after? If you want input into design I can > give you the code now with the understanding that it is > WIP. Sure. If you can wait a week, I'll be able to sort you out. Right now, the server is in need of som

Re: Disk scheduling in FreeBSD

2003-03-05 Thread Adam Migus
It's very WIP right now and will remain so for another couple of weeks. I'd planned to show more people a 'working' version when a) i got a home for the page and b) the numbers its producing have reasonable variance. I'd prefer defering a public release until those goals are reached. You've given

RE: Disk scheduling in FreeBSD

2003-03-05 Thread Paul Robinson
> Mike, > I don't have the test, but I've built a generic performance > testing framework for FreeBSD over the past couple of months > that would make running such a test trivial. I'd post a link > but the page has no permanent home yet. When it gets one I can > follow it up with a link. I'd be

RE: Disk scheduling in FreeBSD

2003-03-04 Thread Adam Migus
Mike, I don't have the test, but I've built a generic performance testing framework for FreeBSD over the past couple of months that would make running such a test trivial. I'd post a link but the page has no permanent home yet. When it gets one I can follow it up with a link. For now, the applic

RE: Disk scheduling in FreeBSD

2003-03-01 Thread Mike Silbersack
On Fri, 28 Feb 2003, Paul Robinson wrote: > Well, I'm just a hanger-on without a commit bit, so I'll work on making it > production ready in the next few weeks, post up a patch and if somebody > wants to commit it, great. At the moment it's all based on 4.3-RELEASE and > isn't really production r

RE: Disk scheduling in FreeBSD

2003-02-28 Thread Pedro F. Giffuni
--- Paul Robinson <[EMAIL PROTECTED]> ha scritto: > > The license is actually BSD. Or at least, the one I > saw last night had a > remarable resemblance to it. :-) I thought the same when I glimpsed over it until I saw the README file :-). Read again, it has 4 statements ala BSD, including th

Re: Disk scheduling in FreeBSD

2003-02-28 Thread Hiten Pandya
[EMAIL PROTECTED] (Thu, Feb 27, 2003 at 06:12:29PM +0100) wrote: > In message <[EMAIL PROTECTED]>, "" writes: > >Hello gang. > > > >Does anyone know what kind of `Disk Scheduling' algorithm, > >if any, is used in FreeBSD? > > One way elevator sort. Thanks for the interesting reply, phk@ and all.

RE: Disk scheduling in FreeBSD

2003-02-28 Thread Paul Robinson
> FWIW, > > Although the original anticipatory scheduler prototype > was made for FreeBSD, it cannot be used in the base > system, unless reimplemented, due to the license. I > wonder if the Linux guys redid it or simply didn't > notice. > > The option of configuring it for runtime is welcome, I >

RE: Disk scheduling in FreeBSD

2003-02-28 Thread Paul Robinson
David Schultz wrote: > The original anticipatory scheduler implementation was done for > FreeBSD 4.3. See > > http://www.cs.rice.edu/~ssiyer/r/antsched/ Yeah, I managed to grab that 45 seconds after sending my original post. I've also contacted Sitaram Iyer directly to see how he feels abo

Re: Disk scheduling in FreeBSD

2003-02-27 Thread Pedro F. Giffuni
FWIW, Although the original anticipatory scheduler prototype was made for FreeBSD, it cannot be used in the base system, unless reimplemented, due to the license. I wonder if the Linux guys redid it or simply didn't notice. The option of configuring it for runtime is welcome, I think. cheers,

Re: Disk scheduling in FreeBSD

2003-02-27 Thread phk
In message <[EMAIL PROTECTED]>, David Schultz writes: >> http://www.kerneltrap.org/node-592.html >... >> Anybody else got plans on this? I have plans to make it possible to configure, at run time, which, if any disksort you want to use on a particular disk device. -- Poul-Henning Kamp | U

Re: Disk scheduling in FreeBSD

2003-02-27 Thread David Schultz
Thus spake Paul Robinson <[EMAIL PROTECTED]>: > Hiten Pandya wrote: > > > Hello gang. > > > > Does anyone know what kind of `Disk Scheduling' algorithm, > > if any, is used in FreeBSD? > > I'm assuming you've read this recently then: > > http://www.kerneltrap.org/node-592.html ... > Anybody else

Re: Disk scheduling in FreeBSD

2003-02-27 Thread phk
In message <[EMAIL PROTECTED]>, "" writes: >Hello gang. > >Does anyone know what kind of `Disk Scheduling' algorithm, >if any, is used in FreeBSD? One way elevator sort. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer

RE: Disk scheduling in FreeBSD

2003-02-27 Thread Paul Robinson
Hiten Pandya wrote: > Hello gang. > > Does anyone know what kind of `Disk Scheduling' algorithm, > if any, is used in FreeBSD? I'm assuming you've read this recently then: http://www.kerneltrap.org/node-592.html Anticipatory Schedulers are all well and good, but I think (I might be corrected he