From: Alex Riesen <raa.lkml@gmail.com>
To: shappen@gmail.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: threads questions
Date: Mon, 5 Sep 2005 00:29:43 +0200 [thread overview]
Message-ID: <81b0412b0509041529524bca1f@mail.gmail.com> (raw)
In-Reply-To: <d2a0e906050903212678ad88a1@mail.gmail.com>
On 9/4/05, Petter Shappen <shappen@gmail.com> wrote:
> As we all know the kernel maintain a data struct for the
> process(PCB),and also for the thread.Because of the latter's smaller
> than the former's,thread switching is faster than the process
not really. They just share some bits (like: address space, file
table, signal handlers, etc),
but aside from that - normal processes.
> switching.And from the book,I read that threads shares some data
What exactly is this book you're reading?
> information of the process,so my question is that when the threads of
> different processes have to switch,and the threads also use some data
> of the processes,will the process switch before the threads?The speed
> of these threads switching is slower than normal,is that true ?
Why?
> How can the thread's advantage over process reflect?
It usually don't. Not noticably, in any case
next prev parent reply other threads:[~2005-09-04 22:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-04 4:26 threads questions Petter Shappen
2005-09-04 22:29 ` Alex Riesen [this message]
2005-09-04 22:57 ` 2.6, devfs, SMP, SATA Howard Chu
2005-09-05 12:56 ` Pekka Enberg
2005-09-06 4:34 ` Howard Chu
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