Hi Garrett,
Thank you for the quick response. The reason I need to kernelise
the network application as it needs to process 1.3/1.4 millions packet
per second. Do you think using the taskqueue api has any impact on the
performance? In FreeBSD, we are hitting around 80% cpu usage.
Also my function for the network applications takes a mbuf*
parameter and processes it. However, if I call ddi_taskq_dispatch for
each incoming packet (mbuf), that will require quite a large pool.
Will the task pool get exhausted?
Alternatively, should I make the function as an infinite loop
instead and pass on to taskq_dispatch only once, then relying on
taskq_resume/suspend when packet is ready. Would this be better?
Many thanks
Joe
On 14 Jul 2008, at 21:43, Garrett D'Amore wrote:
> I'd try first to use a taskq -- ddi_taskq_create(9F) -- they are
> documented, and should be stable.
>
> -- Garrett
>
> Joe Kuan wrote:
>> Hi all,
>>
>> I have managed to kernelised our network application into FreeBSD
>> and worked very well. Now, I start the same process on OpenSolaris.
>> Although I have got the Solaris Internal book with me, it really
>> explains how everything works together. What I need is some tutorial
>> or example on how to use kernel functions
>>
>> On FreeBSD, I can do something like
>>
>> SYSINIT(foo, ..);
>>
>> void foo(void *bar) {
>>
>> .....
>> kthread_create(my_func, ....);
>> }
>>
>>
>> void my_func(void *arg) {
>>
>> while (1) {
>>
>> do something
>>
>> sleep until timeout or wakeup by another signal
>> }
>> }
>>
>> where SYSINIT is to dispatch kernel thread at startup
>>
>> Here is the link of man page of kthread_create,
>> http://www.FreeBSD.org/cgi/man.cgi?query=kthread_create&apropos=0&sektion=0&manpath=FreeBSD+6.3-stable&format=html
>>
>> Here is the link of the info and showing how to use SYSINIT,
>> http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/sysinit.html
>>
>> I would be appreciate if anyone can point me to any document/source
>> file/man pages/anything on the usage of creating a kernel thread
>> using
>> thread_create and also the equivalent mechanism of SYSINIT in
>> OpenSolaris.
>>
>> Many many thanks in advance.
>> Joe
>> _______________________________________________
>> opensolaris-code mailing list
>> opensolaris-code@opensolaris.org
>> http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
>>
>
_______________________________________________
opensolaris-code mailing list
opensolaris-code@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
