Change in vdsm[master]: scale: limit cpu usage using cpu-affinity
nsoffer at redhat.com
nsoffer at redhat.com
Wed Sep 9 12:13:54 UTC 2015
Nir Soffer has posted comments on this change.
Change subject: scale: limit cpu usage using cpu-affinity
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Patch Set 7:
(1 comment)
https://gerrit.ovirt.org/#/c/45738/7/lib/vdsm/taskset.py
File lib/vdsm/taskset.py:
Line 35: return "Process failed with rc=%d out=%r err=%r" % (
Line 36: self.rc, self.out, self.err)
Line 37:
Line 38:
Line 39: # TODO: check the output with multithreaded process
> should we care about the case on which different threads of a process have
I don't think so. getting cpu affinity of whole process when any thread uses different affinity is pretty useless.
Line 40: def get(pid, all_tasks=True):
Line 41: """
Line 42: Get the affinity of a process, by its <pid>, using taskset command.
Line 43: if all_tasks evaluates to True, get the affinity for all threads of
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Gerrit-MessageType: comment
Gerrit-Change-Id: I3f7f68d65eddb5a21afbc3809ea79cd1dee67984
Gerrit-PatchSet: 7
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Francesco Romani <fromani at redhat.com>
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Gerrit-Reviewer: Michal Skrivanek <mskrivan at redhat.com>
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