On Tue, Jan 22, 2013 at 5:29 AM, Darren J Moffat wrote:
> Preallocated ZVOLs - for swap/dump.
>
Darren, good to hear about the cool stuff in S11.
Just to clarify, is this preallocated ZVOL different than the preallocated
dump which has been there for quite some time (and is in Illumos)? Can you
>On 01/22/2013 10:50 PM, Gary Mills wrote:
>> On Tue, Jan 22, 2013 at 11:54:53PM +, Edward Ned Harvey
>> (opensolarisisdeadlongliveopensolari
s) wrote:
>> Paging out unused portions of an executing process from real memory to
>> the swap device is certainly beneficial. Swapping out complete
>
On 01/22/2013 10:50 PM, Gary Mills wrote:
> On Tue, Jan 22, 2013 at 11:54:53PM +, Edward Ned Harvey
> (opensolarisisdeadlongliveopensolaris) wrote:
> Paging out unused portions of an executing process from real memory to
> the swap device is certainly beneficial. Swapping out complete
> proces
> From: Gary Mills [mailto:gary_mi...@fastmail.fm]
>
> > In solaris, I've never seen it swap out idle processes; I've only
> > seen it use swap for the bad bad bad situation. I assume that's all
> > it can do with swap.
>
> You would be wrong. Solaris uses swap space for paging. Paging out
> u
Jim Klimov wrote:
On 2013-01-23 09:41, casper@oracle.com wrote:
Yes and no: the system reserves a lot of additional memory (Solaris
doesn't over-commits swap) and swap is needed to support those
reservations. Also, some pages are dirtied early on and never touched
again; those pages should
On 2013-01-23 09:41, casper@oracle.com wrote:
Yes and no: the system reserves a lot of additional memory (Solaris
doesn't over-commits swap) and swap is needed to support those
reservations. Also, some pages are dirtied early on and never touched
again; those pages should not be kept in memo
>IIRC dump is special.
>
>As for swap... really, you don't want to swap. If you're swapping you
>have problems. Any swap space you have is to help you detect those
>problems and correct them before apps start getting ENOMEM. There
>*are* exceptions to this, such as Varnish. For Varnish and any
