Re: [9fans] 8 cores

2008-07-23 Thread Iruata Souza
On Wed, Jul 23, 2008 at 8:42 AM, matt <[EMAIL PROTECTED]> wrote: > >>> nice! whats the status of your port? have an SGI indy (IP22) and would >>> like >>> to >>> contribute if i find the time :-) >>> >>> please put it somewhere! >>> >>> >> >> http://iru.oitobits.net/src/9sgi/ >> good to know someon

Re: [9fans] 8 cores

2008-07-23 Thread matt
nice! whats the status of your port? have an SGI indy (IP22) and would like to contribute if i find the time :-) please put it somewhere! http://iru.oitobits.net/src/9sgi/ good to know someone's interested besides me and Tim Weiss. iru Hi, good work does that mean it works or does

Re: [9fans] 8 cores

2008-07-17 Thread Iruata Souza
On Thu, Jul 17, 2008 at 5:38 AM, Kernel Panic <[EMAIL PROTECTED]> wrote: > Iruata Souza wrote: >> >> On Wed, Jul 16, 2008 at 2:12 AM, Benjamin Huntsman >> <[EMAIL PROTECTED]> wrote: >> >>> >>> Furthermore, does anyone out there run Plan 9 on non-x86 hardware >>> anymore? >>> >>> >> >> only for the

Re: [9fans] 8 cores

2008-07-17 Thread Roman V. Shaposhnik
On Thu, 2008-07-17 at 05:55 -0700, ron minnich wrote: > Looking at the Plan 9 exec path it's hard to see a reason that Plan 9 > could not do mmap, it just doesn't. But lots of code nowadays depends > on mmap being there. Is there something I'm missing? I've commented privately to Erik that this is

Re: [9fans] 8 cores

2008-07-17 Thread ron minnich
On Thu, Jul 17, 2008 at 6:45 AM, erik quanstrom <[EMAIL PROTECTED]> wrote: > i haven't found this to be the case. it's not always the case. > > in a former life, one i'd rather forget, i did > full text search. > > in order to return the full text, we had to go > get the document. due to the ve

Re: [9fans] 8 cores

2008-07-17 Thread ron minnich
On Thu, Jul 17, 2008 at 6:46 AM, erik quanstrom <[EMAIL PROTECTED]> wrote: >> But you make trips through the vm code on read/write in any event, >> don't you? There was a pretty good paper comparing these paths once >> and in the end it boiled down to "your cost will vary depending on how >> you wr

Re: [9fans] 8 cores

2008-07-17 Thread Kernel Panic
Paweł Lasek wrote: A much more important reason might be the fact that memory mapping of files is only one function of mmap() and company. Basically when you have mmap() and munmap() you can write your own allocator (which might be very useful, especially for databases). I won't delve into using

Re: [9fans] 8 cores

2008-07-17 Thread erik quanstrom
> But you make trips through the vm code on read/write in any event, > don't you? There was a pretty good paper comparing these paths once > and in the end it boiled down to "your cost will vary depending on how > you wrote the kernel" :-) on plan 9? where? - erik

Re: [9fans] 8 cores

2008-07-17 Thread erik quanstrom
> Well, depends. Non-mmap you have to do the storage management in the > app. mmap, you're using the storage management in the kernel to figure > out where the data goes, as well as all the LRU stuff to figure out > what happens when you're running out of memory and you need to get rid > of some of

Re: [9fans] 8 cores

2008-07-17 Thread Paweł Lasek
On Thu, Jul 17, 2008 at 11:07, Charles Forsyth <[EMAIL PROTECTED]> wrote: >> I could imagine that databases use mmap() havily > > it's a little mystery for me why they would do that since it's slower (or > ought to be), > because the trap path and fault recovery must do more work than syscall > (

Re: [9fans] 8 cores

2008-07-17 Thread ron minnich
On Thu, Jul 17, 2008 at 5:41 AM, erik quanstrom <[EMAIL PROTECTED]> wrote: > as you've pointed out, performance-wise it's not copying vs. nothing > it's copying vs page faults and trips through the vm code. > i would think playing vm games (as linus likes to say) would make > scheduling on mp hard

Re: [9fans] 8 cores

2008-07-17 Thread ron minnich
On Thu, Jul 17, 2008 at 2:07 AM, Charles Forsyth <[EMAIL PROTECTED]> wrote: >> I could imagine that databases use mmap() havily > > it's a little mystery for me why they would do that since it's slower Well, depends. Non-mmap you have to do the storage management in the app. mmap, you're using th

Re: [9fans] 8 cores

2008-07-17 Thread erik quanstrom
> > > I could imagine that databases use mmap() havily > > > > it's a little mystery for me why they would do that since it's slower (or > > ought to be), > > slower compared to what? I'd expect the biggest slowdown for > read()/write() be not the price of a syscall, but what you > pay for copyi

Re: [9fans] 8 cores

2008-07-17 Thread Roman V. Shaposhnik
On Wed, 2008-07-16 at 22:09 -0400, erik quanstrom wrote: > > On Tue, 2008-07-15 at 18:28 -0400, erik quanstrom wrote: > >> coming as no suprise, the pc port of plan 9 > >> does work just fine with 8 cores. > >> > >> mpls; cat /dev/sysstat > >> 0 14271 2135013399

Re: [9fans] 8 cores

2008-07-17 Thread Roman V. Shaposhnik
On Thu, 2008-07-17 at 10:07 +0100, Charles Forsyth wrote: > > I could imagine that databases use mmap() havily > > it's a little mystery for me why they would do that since it's slower (or > ought to be), slower compared to what? I'd expect the biggest slowdown for read()/write() be not the pri

Re: [9fans] 8 cores

2008-07-17 Thread Kernel Panic
Charles Forsyth wrote: I could imagine that databases use mmap() havily it's a little mystery for me why they would do that since it's slower (or ought to be), because the trap path and fault recovery must do more work than syscall (perhaps much more). it's also difficult then to optimis

Re: [9fans] 8 cores

2008-07-17 Thread Charles Forsyth
> I could imagine that databases use mmap() havily it's a little mystery for me why they would do that since it's slower (or ought to be), because the trap path and fault recovery must do more work than syscall (perhaps much more). it's also difficult then to optimise the replacement strategy fo

Re: [9fans] 8 cores

2008-07-17 Thread Kernel Panic
Iruata Souza wrote: On Wed, Jul 16, 2008 at 2:12 AM, Benjamin Huntsman <[EMAIL PROTECTED]> wrote: Furthermore, does anyone out there run Plan 9 on non-x86 hardware anymore? only for the fun of it, I'm slowly trying to port it to my SGI O2. nice! whats the status of your port? have

Re: [9fans] 8 cores

2008-07-17 Thread Kernel Panic
Uriel wrote: On Wed, Jul 16, 2008 at 5:02 PM, Benjamin Huntsman <[EMAIL PROTECTED]> wrote: i can't agree with this label "research os" if you mean to imply that it's not stable or somehow unfinished. Not at all. Just meant that one doesn't run their company's Oracle database on it.

Re: [9fans] 8 cores

2008-07-16 Thread erik quanstrom
> On Tue, 2008-07-15 at 18:28 -0400, erik quanstrom wrote: >> coming as no suprise, the pc port of plan 9 >> does work just fine with 8 cores. >> >> mpls; cat /dev/sysstat >> 0 14271 21350133991116 0 >> 0 0 99 0

Re: [9fans] 8 cores

2008-07-16 Thread Iruata Souza
On Wed, Jul 16, 2008 at 2:12 AM, Benjamin Huntsman <[EMAIL PROTECTED]> wrote: > Furthermore, does anyone out there run Plan 9 on non-x86 hardware anymore? > only for the fun of it, I'm slowly trying to port it to my SGI O2. iru

Re: [9fans] 8 cores

2008-07-16 Thread Roman V. Shaposhnik
On Tue, 2008-07-15 at 18:28 -0400, erik quanstrom wrote: > coming as no suprise, the pc port of plan 9 > does work just fine with 8 cores. > > mpls; cat /dev/sysstat > 0 14271 21350133991116 0 > 0 0 99 0 Looki

Re: [9fans] 8 cores

2008-07-16 Thread Uriel
On Wed, Jul 16, 2008 at 5:02 PM, Benjamin Huntsman <[EMAIL PROTECTED]> wrote: >>i can't agree with this label "research os" if you mean >>to imply that it's not stable or somehow unfinished. > > Not at all. Just meant that one doesn't run their company's Oracle database > on it. > Not because it'

Re: [9fans] 8 cores

2008-07-16 Thread Benjamin Huntsman
>i can't agree with this label "research os" if you mean >to imply that it's not stable or somehow unfinished. Not at all. Just meant that one doesn't run their company's Oracle database on it. Not because it's not worthy of doing so, but such things just aren't compiled for it. >...you mean s

Re: [9fans] 8 cores

2008-07-16 Thread Robert William Fuller
Uriel wrote: You could always import /net from a 9grid node in a (more) free country ;) (Maybe SA should start filtering 9P connections ;) Peace Glad to hear that device remoting has some practical applications :-) Given the US Department of Homeland Insecurity, we may need that in the US so

Re: [9fans] 8 cores

2008-07-16 Thread John Waters
I have a means to circumvent the filters, but not at my current location. Thankfully 9p flows as poorly as all the other protocols here in KSA, but it still flows. I wonder sometimes if I am the only plan 9 user in "The Kingdom"... Where most folks are accustomed to "five nines" of availability, th

Re: [9fans] 8 cores

2008-07-16 Thread Uriel
You could always import /net from a 9grid node in a (more) free country ;) (Maybe SA should start filtering 9P connections ;) Peace uriel On Wed, Jul 16, 2008 at 2:13 PM, John Waters <[EMAIL PROTECTED]> wrote: > Hi Mr Forsyth, > > I tried to respond to your directly, but the mail bounced. > Here

Re: [9fans] 8 cores

2008-07-16 Thread Uriel
> if that doesn't compel you, running upas imap server for ~40 users > with 1.3gb of inboxes might. since upas has the bad manners to load > the entire mailbox, we're using about 90% of the 3.5gb bios will spare > us in 32bit mode. i also watched it at 100% cpu for a solid hour > yesterday. Ther

Re: [9fans] 8 cores

2008-07-16 Thread erik quanstrom
> I'd like to ask a question, but before I do, feel I should say, I've > been on this list long enough to understand that Plan 9 is a research > vessel, not an OS that's targeted at commercial deployment... i can't agree with this label "research os" if you mean to imply that it's not stable or so

Re: [9fans] 8 cores

2008-07-16 Thread a
For me the URL works out to: http://domino.research.ibm.com/comm/research_projects.nsf/pages/hare.index.html HARE! Awesome. Anthony

Re: [9fans] 8 cores

2008-07-16 Thread Russ Cox
> Some people would like to, but to my knowledge fourth edition hasn't > been ported to any other platforms. Plan 9 has always run on multiple architectures, and the fourth edition is no different. ls /sys/src/9 will show you that there are ports to the Alpha PC (alphapc) the HP iPaq (bitsy), and

Re: [9fans] 8 cores

2008-07-16 Thread John Waters
Hi Mr Forsyth, I tried to respond to your directly, but the mail bounced. Here in Saudi Arabia tinyurl is blocked (by the govt). Is it possible that you (or someone else) can expand the URL for me and send it to me off-list? Thanks John Waters, No relation to the director On Wed, Jul 16, 2008 at

Re: [9fans] 8 cores

2008-07-16 Thread C H Forsyth
>Furthermore, does anyone out there run Plan 9 on non-x86 hardware anymore? yes: http://tinyurl.com/5jc8u8, for instance

Re: [9fans] 8 cores

2008-07-16 Thread sqweek
On Wed, Jul 16, 2008 at 1:12 PM, Benjamin Huntsman <[EMAIL PROTECTED]> wrote: > That being said, while huge scalability is certainly research-worthy, does > anyone actually run anything on Plan 9 that needs or would otherwise benefit > from 8+ CPUs and more than a few GB's of RAM? The Blue gene

Re: [9fans] 8 cores

2008-07-15 Thread Benjamin Huntsman
I'd like to ask a question, but before I do, feel I should say, I've been on this list long enough to understand that Plan 9 is a research vessel, not an OS that's targeted at commercial deployment... That being said, while huge scalability is certainly research-worthy, does anyone actually run

Re: [9fans] 8 cores

2008-07-15 Thread erik quanstrom
> Which hardware platform is that? > -mlw it's a generic xeon 5400-based machine. - erik

Re: [9fans] 8 cores

2008-07-15 Thread andrey mirtchovski
add this one to the list: http://9fans.net/archive/2003/12/182

Re: [9fans] 8 cores

2008-07-15 Thread Williams, Mitch
Which hardware platform is that? -mlw -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of erik quanstrom Sent: Tuesday, July 15, 2008 3:29 PM To: 9fans@9fans.net Subject: [9fans] 8 cores coming as no suprise, the pc port of plan 9 does work just fine with 8

Re: [9fans] 8 cores

2008-07-15 Thread Benjamin Huntsman
>coming as no suprise, the pc port of plan 9 >does work just fine with 8 cores. Just out of interest, what's the machine? <>

[9fans] 8 cores

2008-07-15 Thread erik quanstrom
coming as no suprise, the pc port of plan 9 does work just fine with 8 cores. mpls; cat /dev/sysstat 0 14271 21350133991116 0 0 0 99 0 19116 1051772279 812 0