On Sat, May 24, 2014 at 6:38 PM, Tim Bishop <tim-lists_at_bishnet.net> wrote: > On Fri, May 23, 2014 at 09:03:12PM -0600, Alan Somers wrote: >> Yeah, I think so. It seems like a GENERIC kernel ought to be able to >> handle the biggest commonly available quad socket systems. Anything >> with more than 4 sockets, though, is probably too exotic to deserve >> such special treatment. > > I submitted a PR to that effect: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=190169 > > Thanks again for your help. > > Tim. > Hi, I read in the follow-up of the PR that current hard limit is 256. Currently available systems* can already push usage up to 240. IVB-EX aka Xeon E7v2 supports 8-socket * 15-core * 2-thread. Expect something to break 256 in less than a year I think. X2APIC support will be required then. In theory it is already possible to build larger systems with custom glue logic, but I am not aware of any. *: E.g. IBM System x3950 X6 -Jia-Shiun.Received on Wed May 28 2014 - 02:12:01 UTC
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