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Re: [Xen-users] Swap: create or not?
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: [Xen-users] Swap: create or not? |
| From: | George Shuklin <george.shuklin@xxxxxxxxx> |
| Date: | Fri, 11 Feb 2011 14:18:48 +0300 |
| Delivery-date: | Fri, 11 Feb 2011 03:19:45 -0800 |
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Yes, swap is almost mandatory - it will save machine from state 'very low mem'. From my research (mostly on XCP) this state may cause unstability for some kernels, causing OOM_killer to kill many processes (sometimes including init - means kernel panic). Swap reducing chances to get to this state. Second very important point: ballooning. When ballooning (inflating balloon = reduce mem) occur, if kernel have no free address space it can invoke OOM_killer. Swap will save in case slightly wrong values for balloon. В Пт., 11/02/2011 в 10:12 +0000, Mauro пишет: > When creating a DomU I've always set a swap. > Do you think it is necessary to have a swap in the DomU? > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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