Re: kernel SMP thread

[Jordan K. Hubbard]

 Jordan said that the kernel SMP thread is ready in CURRENT FreeBSD,
 but I could not find any document for the SMP kthread.

Huh?  I never said any such thing.  You must have misinterpreted
something else I said.

- Jordan


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Re: kernel SMP thread

[FTG staff]

  Jordan said that the kernel SMP thread is ready in CURRENT FreeBSD,
  but I could not find any document for the SMP kthread.
 
 Huh?  I never said any such thing.  You must have misinterpreted
 something else I said.

I asked a question "Is FreeBSD working on SMP thread?" at both USENIX
and FreeBSDcon last year, you answered that it is already in the kernel,
but there is no API for userland. Maybe we misunderstund each other :-(

-Jin


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Re: kernel SMP thread

[Jordan K. Hubbard]

 I asked a question "Is FreeBSD working on SMP thread?" at both USENIX
 and FreeBSDcon last year, you answered that it is already in the kernel,
 but there is no API for userland. Maybe we misunderstund each other :-(

I answered that we had *kernel* threads but that there was no native
API yet, just the "linuxthreads" kernel thread API.  Actual SMP-capable
kernel threads remain a pipe dream for us, however.  Want to work
on it? :-)

- Jordan


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Re: kernel SMP thread

[Jake Burkholder]

 Jordan said that the kernel SMP thread is ready in CURRENT FreeBSD,
 but I could not find any document for the SMP kthread.
 
 By looking at the kern/kern_kthread.c code, it does not look like a SMP
 thread, and does not even have mutex functions in there.
 
 Does any one happen to know where is the SMP kthread functions? specially
 the mutex functions or thread locking mechanism for kernel thread?

I have a simple implementation of mutexes and condition variables on my
web page, you are welcome to it.

http://io.yi.org

Jake



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Re: kernel SMP thread

[FTG staff]

  I asked a question "Is FreeBSD working on SMP thread?" at both USENIX
  and FreeBSDcon last year, you answered that it is already in the kernel,
  but there is no API for userland. Maybe we misunderstund each other :-(
 
 I answered that we had *kernel* threads but that there was no native
 API yet, just the "linuxthreads" kernel thread API.  Actual SMP-capable
 kernel threads remain a pipe dream for us, however.  Want to work
 on it? :-)

Ok, I probably missed the last sentence. Anyway, if I were knowledgeable
and good on SMP thread architecture, I would not ask the question :-)
But if people want a team, I can help in some part.

Once I can launch OC-12 driver for FreeBSD, and go for 3rd generation
network architecture, I will defininately need and work on SMP thread
more or less.

Thanks,

-Jin


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