Re: [RFC] New API to retrieve node CPU map

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/11/2012 03:15 PM, Viktor Mihajlovski wrote:
On 10/11/2012 02:27 PM, Eric Blake wrote:

That starts to feel rather complex.
well :-)

On the other hand, you have a point that returning maplen (number of
bytes allocated in the map) does NOT tell you how many cpus are online
without doing a population count of the result; worse, it cannot tell
you how many cpus are offline (a maplen of 1 is returned whether I have
4 cpus or 8 cpus, so if the map contains the value 0xb, does that mean I
had a 4 cpu machine with cpu2 off, or an 8 cpu machine with cpu2 and
cpu4-7 off?).  So allowing the user to optionally ask how many cpus are
online or offline might indeed also be useful, in addition to the maplen
needed to return the bitmap.

I actually thought of returning the number of CPUs, i.e. relevant bits which
of course makes either 'online' or 'offline' redundant.
The maplen - if of interest - can be computed by VIR_CPU_MAPLEN.


I have a process question as the implementation I have posted on the list at
https://www.redhat.com/archives/libvir-list/2012-October/msg00803.html
would need a rebase because of upstream conflicts.
Should I send out new rebased versions once in a while, even if I have no other changes or should I wait for initial feedback before producing a new patch version?
Thanks.

--

Mit freundlichen Grüßen/Kind Regards
   Viktor Mihajlovski

IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294

--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list



[Index of Archives]     [Virt Tools]     [Libvirt Users]     [Lib OS Info]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [KDE Users]     [Fedora Tools]