atom feed32 messages in org.freebsd.freebsd-smpRe: possible problem with SMP?
FromSent OnAttachments
Russell FrancisFeb 14, 2001 11:31 am 
Kris KennawayFeb 14, 2001 7:10 pm 
Seth LeighFeb 14, 2001 7:34 pm 
Kris KennawayFeb 14, 2001 7:53 pm 
Seth LeighFeb 14, 2001 9:01 pm 
Nate WilliamsFeb 14, 2001 9:36 pm 
Kris KennawayFeb 14, 2001 9:43 pm 
Terry LambertFeb 14, 2001 11:08 pm 
Seth LeighFeb 14, 2001 11:20 pm 
Seth LeighFeb 14, 2001 11:55 pm 
Jason EvansFeb 15, 2001 1:32 am 
Nate WilliamsFeb 15, 2001 9:06 am 
Terry LambertFeb 15, 2001 3:35 pm 
Nate WilliamsFeb 15, 2001 3:41 pm 
Terry LambertFeb 15, 2001 4:03 pm 
Terry LambertFeb 15, 2001 4:08 pm 
Terry LambertFeb 15, 2001 4:51 pm 
Arun SharmaFeb 15, 2001 5:19 pm 
Arun SharmaFeb 15, 2001 5:22 pm 
Seth LeighFeb 15, 2001 5:53 pm 
Nate WilliamsFeb 15, 2001 7:17 pm 
Kris KennawayFeb 15, 2001 9:16 pm 
Russell FrancisFeb 15, 2001 9:31 pm 
Yifeng XuFeb 15, 2001 9:33 pm 
Arun SharmaFeb 15, 2001 10:17 pm 
Kris KennawayFeb 15, 2001 10:35 pm 
Arun SharmaFeb 15, 2001 11:01 pm 
Seth LeighFeb 15, 2001 11:19 pm 
Jordan HubbardFeb 16, 2001 2:06 am 
Jacques A. VidrineFeb 16, 2001 9:06 am 
Arun SharmaFeb 16, 2001 10:45 am 
Kris KennawayFeb 16, 2001 9:24 pm 
Subject:Re: possible problem with SMP?
From:Yifeng Xu (webs@yahoo.com)
Date:Feb 15, 2001 9:33:57 pm
List:org.freebsd.freebsd-smp

by reading jasone's KSE project web pages, I do think KSE will support PTHREAD_SCOPE_SYSTEM very well, FreeBSD will do support 1:1 and M:N thread
model, it seems KSE will have bright future, I think it's perfect and I am waiting.

David Xu

--- Seth Leigh <se@pengar.com> wrote:

With the normal threads library under Solaris (/usr/lib/libthread.so.1 and /usr/lib/libpthread.so.1) the default mode of operation is indeed n:m. However, if you declare a pthread_attr_t and call pthread_attr_setscope() on it with PTHREAD_SCOPE_SYSTEM, then any threads created subsequently are bound to an lwp. Threads created with PTHREAD_SCOPE_SYSTEM are 1:1.

Additionally, with Solaris 8 there is an alternate threads library (/usr/lib/lwp/libpthread.so.1) which is strictly 1:1. Ie: bound threads are all you get, and all scheduling and such is left to the kernel.

Seth

At 05:22 PM 2/15/2001 -0800, Arun Sharma wrote:

On 15 Feb 2001 06:37:23 +0100, Nate Williams <na@yogotech.com> wrote:

Sun's JDK uses a one-one mapping, because

Do you have any references for this ? libpthread on Solaris uses n:m mapping, AFAIK.

-Arun

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