[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] pre-reservation of memory for domain creation
At 12:41 +0000 on 09 Feb (1265719265), Jan Beulich wrote: > >OK; the early allocation, for a domain with no vcpus and no RAM, is a > >constant 4 MiB, and just needs to be added to whatever overheads are > >already being taken into account (domain and vcpu structs, VMCBs, &c). > > The issue is that this used to be 1Mb. Hence the question whether > in fact it needs to be 4Mb now (which it got increased to when max > HVM vCPU-s got grown to 128). > > The point here is that on one hand there's no clear picture how > much memory is really needed before the full shadow allocation > gets set up, and on the other hand Keir is recalling issues > resulting from not growing the amount to 4Mb. Righto. The change from 1MB to 4MB is not the right fix for those issues -- instead, Xend ought to set the shadow memory allocation before it allocates vcpus. Tim -- Tim Deegan <Tim.Deegan@xxxxxxxxxx> Principal Software Engineer, XenServer Engineering Citrix Systems UK Ltd. (Company #02937203, SL9 0BG) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |