On Thu, 6 Jan 2000, Arjan de Vet wrote:
> Jordan K. Hubbard wrote:
>
> >This is very interesting data and I was just wondering about the
> >actual state of functionality in our AIO code just the other day,
> >oddly enough. Does anyone have a PR# for the mentioned patches?
>
> kern/12053
>
>
Could you send the source code to me? I'll take a look if it is simple.
-Chris
On Tue, 1 Aug 2000, Kevin Mills wrote:
>
> In order to get familiar with aio_waitcomplete() and friends, I wrote a
> simple echo server and have run into problems. If I attempt to hit my echo
> server with more t
On Fri, 22 Jun 2001, Richard Hodges wrote:
> On Fri, 22 Jun 2001, Josh Osborne wrote:
>
> > On Friday, June 22, 2001, at 07:01 PM, E.B. Dreger wrote:
> > > My question is, from a performance standpoint, in what situations are
> > > these techniques most appropriate?
>
> > AIO is good when y
at at any moment it would
> > > just pick ten or so (out of maybe 20-25 files) to ignore at any
> > > given time.
> > >
>
> On Mon, 25 Jun 2001, Christopher Sedore wrote:
>
> > I've done this at the 3-6 MB/sec continous (peaks at 10MB+/sec) ra
On Mon, 13 Sep 1999, Jayson Nordwick wrote:
> While reading through (at least trying to... I wish there was some sort of
> kernel documentation available, the entry fee is very high) the aio_* calls,
> I had a few questions to clear up my understanding:
>
> 1) Do they only work on files? The
On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> > The aio_* stuff (I use a custom patched version in 4.x) offers performance
> > advantages over select() with large numbers of descriptors. In terms of
> > efficiency, I don't have any trouble saturating full-duplex 100mbit link
> > with aio routine
On Wed, 15 Sep 1999, Jayson Nordwick wrote:
> I did research this weekend on high performance I/O. I looked at differerent
> approaches and to me they all appear the same (I know that I will get some
> flamage for this). The two most prominent models that I saw were IO
> Completion Ports and S
On Wed, 15 Sep 1999, Alfred Perlstein wrote:
>
> On Wed, 15 Sep 1999, Christopher Sedore wrote:
>
> > My ideas for this are a little different than what I've seen proposed thus
> > far, more along the lines of creating something that acts as both an event
> >
I filed a followup with a patch (against 4.x, but it will probably work
just as well against 3.x, but I don't have a handy way to try it).
-Chris
On Wed, 15 Sep 1999, Mike Smith wrote:
> >
> >
> > On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> >
> > > > The aio_* stuff (I use a custom patched
On Thu, 16 Sep 1999, Wes Peters wrote:
> Christopher Sedore wrote:
> >
> > On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> > >
> > > Do you by any change have an idea how to fix PR kern/13075
> > > (signal is not posted for async I/O on raw devices)
&
On Fri, 21 May 1999, Mike Smith wrote:
> >
> > I really do not know how to describe the problem. But a friend here asks
> > me how to mmap a network buffer so that there is no need to copy the data
> > from user space to kernel space. We are not sure whether FreeBSD can
> > create a device file
On Mon, 24 May 1999, Mike Smith wrote:
> > > There's also very little need for this under "real" circumstances; some
> > > simple tests have demonstrated we can sustain about 800Mbps throughput
> > > (UDP), and the bottleneck here seems to be checksum calculations, not
> > > copyin/out.
> > >
I bought a one-for-all remote that I drove from FreeBSD just in the last
year or two. You might try www.smarthome.com. I bought the remote,
cable, and docs for how to use it for under US $100. They also have
RS232 learning IR devices for $180. Expensive, but I wasn't willing to
do the electroni
On Wed, 16 Jun 1999 bro...@one-eyed-alien.net wrote:
> Hi,
>
> I've been doing some work which caused me to want to write a simple
> userland bridging/filtering program (don't ask ;-). The easy way to do it
> seemed to be to use BPF to read and write the packets one each side. I
> wrote somet
On Tue, 29 Jun 1999, Miguel Gilly wrote:
> Bonsai Studio: Web Design and More
> http://www.bonsai-studio.com
> Content-type: text/plain; charset="US-ASCII"
> Content-transfer-encoding: 7bit
>
> Dear Sirs,
>
> I would find it extremely helpful if FreeBSD could offer redundant
> clustering capab
On Sun, 4 Jul 1999, Peter Wemm wrote:
> "Brian F. Feldman" wrote:
> > On Fri, 2 Jul 1999, Jonathan Lemon wrote:
> >
> > > In article
> > > 0...@crb.crb-web.com> you write:
> > > >now supports the select() and poll() system calls. My question is
> > > >really
> one
> > > >of usage.
On Tue, 29 Jun 1999, Miguel Gilly wrote:
> Bonsai Studio: Web Design and More
> http://www.bonsai-studio.com
> Content-type: text/plain; charset="US-ASCII"
> Content-transfer-encoding: 7bit
>
> Dear Sirs,
>
> I would find it extremely helpful if FreeBSD could offer redundant
> clustering capa
On Sun, 4 Jul 1999, Peter Wemm wrote:
> "Brian F. Feldman" wrote:
> > On Fri, 2 Jul 1999, Jonathan Lemon wrote:
> >
> > > In article [EMAIL PROTECTED]> you write:
> > > >now supports the select() and poll() system calls. My question is really
> one
> > > >of usage. Why would one us
On Mon, 13 Sep 1999, Jayson Nordwick wrote:
> While reading through (at least trying to... I wish there was some sort of
> kernel documentation available, the entry fee is very high) the aio_* calls,
> I had a few questions to clear up my understanding:
>
> 1) Do they only work on files? The
On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> > The aio_* stuff (I use a custom patched version in 4.x) offers performance
> > advantages over select() with large numbers of descriptors. In terms of
> > efficiency, I don't have any trouble saturating full-duplex 100mbit link
> > with aio routin
On Wed, 15 Sep 1999, Jayson Nordwick wrote:
> I did research this weekend on high performance I/O. I looked at differerent
> approaches and to me they all appear the same (I know that I will get some
> flamage for this). The two most prominent models that I saw were IO
> Completion Ports and
On Wed, 15 Sep 1999, Alfred Perlstein wrote:
>
> On Wed, 15 Sep 1999, Christopher Sedore wrote:
>
> > My ideas for this are a little different than what I've seen proposed thus
> > far, more along the lines of creating something that acts as both an event
> >
I filed a followup with a patch (against 4.x, but it will probably work
just as well against 3.x, but I don't have a handy way to try it).
-Chris
On Wed, 15 Sep 1999, Mike Smith wrote:
> >
> >
> > On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> >
> > > > The aio_* stuff (I use a custom patched
On Thu, 16 Sep 1999, Wes Peters wrote:
> Christopher Sedore wrote:
> >
> > On Wed, 15 Sep 1999, Ruslan Ermilov wrote:
> > >
> > > Do you by any change have an idea how to fix PR kern/13075
> > > (signal is not posted for async I/O on raw devices)
&
sigev_value is not passed depending on how the kernel
> processes the signal.
>
>
> Thanks,
> John
>
> > Christopher Sedore wrote:
> > >
> > > On Thu, 16 Sep 1999, Wes Peters wrote:
> > >
> > > > Christopher Sedore wrote:
> >
I have the following question: Let's say that I have a block of user
memory which I've mapped into the kernel, and would like to send on a
network socket. I'd like to simply grab an mbuf, point to the memory as
external storage, and queue it up for transmission. This would work fine,
except th
On Thu, 23 Sep 1999, Matthew Dillon wrote:
> :I have the following question: Let's say that I have a block of user
> :memory which I've mapped into the kernel, and would like to send on a
> :network socket. I'd like to simply grab an mbuf, point to the memory as
> :external storage, and queue
On Mon, 11 Oct 1999, Chris Costello wrote:
> On Mon, Oct 11, 1999, Chad David wrote:
> > Some replys indicated that I should use -current
> > for aio_*. Would this be true also for any
> > serious threading? Is -current ready for a
> > semi-production environment?
>
>Not really. The fact
On Tue, 2 Nov 1999, Ricardo Bernardini wrote:
> Hello list!
>
> I'm starting with aio functions (aio_read, aio_return, etc.), I've made them
> work with disk file I/O, now I'm trying with TCP sockets not with the same
> success. Does anyone know if it is posible to do what I'm trying? Or whe
On Fri, 5 Nov 1999, Daniel C. Sobral wrote:
> Ricardo Bernardini wrote:
> >
> > Well !! That's far more than the things I'm having trouble with!! I'm not
> > being able to make ONE asynchronous read. I've tried the aio functions with
> > file I/O and it worked fine, I've also tried the socket
On Wed, 3 Nov 1999, John Polstra wrote:
> In article <[EMAIL PROTECTED]>,
> Christopher Sedore <[EMAIL PROTECTED]> wrote:
[...snip info on aio stuff...]
> >
> > I hope to try 1000 descriptors soon.
>
> That's great news! So have you gotten rid of
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