Messages in this thread | | | Date | Sun, 24 Jun 2001 16:47:29 -0700 | From | Larry McVoy <> | Subject | Re: Threads are processes that share more |
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On Thu, Jun 21, 2001 at 01:10:31AM +0200, J . A . Magallon wrote: > > On 20010621 Stephen Satchell wrote: > > > >By the way, I'm surprised no one has mentioned that a synonym for "thread" > >is "lightweight process". > > > > In linux. Perhaps this the fault. > In IRIX, you have sprocs and threads. sprocs have independent pids and you > can control what you share (mappings, fd table...). Threads group under > same pid.
I think that's accurate.
> Linux chose the sproc way...
That's not accurate. The Linux way is an infinitely nicer architecture. For each thing that is shareable you have code like
vm_fork(... flags) { if (flags & VM_SHARE) return; do the work to fork the data structure }
In other words, it's designed to be shared. The IRIX stuff is disgusting, you really don't want anything to do with sproc(). It _sounds_ like they are the same but they aren't - for example, with sproc you get your very own TLB miss handler. Doesn't that sound special? -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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