Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread Henning Schild
On Fri, 1 Jul 2011 19:23:03 +0200 erik quanstrom wrote: > suppose that i have a multicore machine and all maches > have executed halt(). then, if i get an interrupt on one that > causes a proc to be ready, then i have to wait until the next > clock tick to sched() it on any other core. this is

Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread Sape Mullender
Indeed, there's an assumption that each core manages the TLB by examining the data structures at clock frequency. In a halt, the clock interrupts still happen so I guess there's no need to invalidate the TLBs just before halt. You could set a variable indicating you're halted and cause other core

[9fans] auth change? / auth for u9fs on a mac

2011-07-04 Thread Steve Simon
This is probably my finger trouble but just in case I am not going mad and sothing has changed in the last couple of months... I have a mac running u9fs (marlin). I don't like the idea of putting bootes password in /etc on the mac so I give it its own host owner and secret $ cat /etc/u9f

Re: [9fans] auth change? / auth for u9fs on a mac

2011-07-04 Thread Yaroslav
> I am pretty sure this has worked for several years but now it is broken: Has mac-owner's key been expired in your auth keyfs? >Are you all happy to sprinkle bootes key onto unix machines (hard to believe)? negative: the credentials you put in /etc/u9fs.key represent the service, not a client.

Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread erik quanstrom
> I am aware of the latency issue there but in my case i care much more > about the battery of my host than about responsiveness of the guest. so why don't you just give your plan 9 guest 1 processor, either through the vmm or *ncpu, and be done with it? - erik

Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread Steve Simon
> so why don't you just give your plan 9 guest 1 processor, either through the > vmm > or *ncpu, and be done with it? Too much work to port plan9 a cpu server to the mac ppc hardware... :-) An intel mac would solve many problems I agree. -Steve

Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread Steve Simon
I appologise for the noise, got my emails very confused. -Steve

Re: [9fans] why not halt in x86 multicore

2011-07-04 Thread erik quanstrom
On Mon Jul 4 09:14:10 EDT 2011, st...@quintile.net wrote: > > so why don't you just give your plan 9 guest 1 processor, either through > > the vmm > > or *ncpu, and be done with it? > > Too much work to port plan9 a cpu server to the mac ppc hardware... :-) > > An intel mac would solve many pro

Re: [9fans] novel userspace paradigms introduced by plan 9

2011-07-04 Thread Robert Seaton
> one might find http://www.glendix.org/ project interesting The project actually already uses a glendix patched kernel and much of my upcoming work will be focused on porting more of Plan 9's syscalls to the Linux kernel so that more native Plan 9 apps can be run on Linux. :)

[9fans] Mousing muscle memory (was: Mousing is faster than typing but users do not believe it)

2011-07-04 Thread Ethan Grammatikidis
On Wed, 15 Jun 2011 09:23:56 -0700 David Leimbach wrote: > http://news.ycombinator.com/item?id=2657135 > > Dave Has anyone read the last few posts on this YC thread? Specifically the ones on game playing. The particular point which interested me was that game players can get so fast they must

Re: [9fans] auth change? / auth for u9fs on a mac

2011-07-04 Thread Anthony Sorace
I do what you describe on several macs; it works fine. I haven't updated in a while, but what your describing is my understanding of the standard way to use p9any auth with u9fs. I use a special user created for this purpose as well. On Jul 4, 2011, at 4:53, "Steve Simon" wrote: > This is prob

Re: [9fans] Mousing muscle memory (was: Mousing is faster than typing but users do not believe it)

2011-07-04 Thread hiro
I think muscle memory can deduct mouse acceleration. Linear mappings to the screen would be easier to learn, but too slow when you need to move over larger distances.

Re: [9fans] Mousing muscle memory (was: Mousing is faster than typing but users do not believe it)

2011-07-04 Thread EBo
On Mon, 4 Jul 2011 18:30:25 +0100, Ethan Grammatikidis wrote: I'm quite certain you can develop muscle memory for mouse actions in some situations. I'm very interested in determining exactly what situations and how to apply it in a more serious context. Chording can become instinctual if your

Re: [9fans] Mousing muscle memory (was: Mousing is faster than typing but users do not believe it)

2011-07-04 Thread Ethan Grammatikidis
On Mon, 4 Jul 2011 20:05:18 + hiro <23h...@googlemail.com> wrote: > I think muscle memory can deduct mouse acceleration. Linear mappings > to the screen would be easier to learn, but too slow when you need to > move over larger distances. I think it can too, I've not found acceleration any hi