* [9fans] copy on reference on mp (copymode)
@ 2010-08-10 16:06 cinap_lenrek
2010-08-12 23:39 ` Russ Cox
0 siblings, 1 reply; 2+ messages in thread
From: cinap_lenrek @ 2010-08-10 16:06 UTC (permalink / raw)
To: 9fans
just out of curiosity: why is copy-on-write changed to
copy-on-reference when the machine is a multi
processor system?
(grep for copymode in the kernel source)
--
cinap
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [9fans] copy on reference on mp (copymode)
2010-08-10 16:06 [9fans] copy on reference on mp (copymode) cinap_lenrek
@ 2010-08-12 23:39 ` Russ Cox
0 siblings, 0 replies; 2+ messages in thread
From: Russ Cox @ 2010-08-12 23:39 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
On Tue, Aug 10, 2010 at 9:06 AM, <cinap_lenrek@gmx.de> wrote:
> just out of curiosity: why is copy-on-write changed to
> copy-on-reference when the machine is a multi
> processor system?
otherwise you need tlb shootdowns.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2010-08-10 16:06 [9fans] copy on reference on mp (copymode) cinap_lenrek
2010-08-12 23:39 ` Russ Cox
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