Documentation error

Bug #1260166 reported by Michael Kraynov
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fuel for OpenStack
Fix Released
Low
Matthew Mosesohn

Bug Description

On Page http://docs.mirantis.com/fuel/3.1/production-considerations.html the calculation for the 84 CPU cores does not using hyper threading but the first calculation (with the 5 CPU cores) does.

Original text from the hyperlink:
To make it possible to provide the maximum CPU in this example you will need at least 5 CPU cores (16 GHz/(2.4 GHz per core * 1.3 to adjust for hyper-threading)) per machine, and at least

84 CPU cores ((100 VMs * 2 GHz per VM)/2.4 GHz per core) in total.

Expected text:
"84 CPU cores ((100 Vms * 2 Ghz per VM)/(2.4 Ghz per core * 1.3 to adjust for hyper-threading)) in total"

Is hyper-threading not used in the calculation because we don't cross the 2.4 GhZ threshold? Does this hold true even if Hyperthreading is enabled in the BIOS?

Revision history for this message
Michael Kraynov (mkraynov) wrote :
Mike Scherbakov (mihgen)
Changed in fuel:
milestone: none → 4.0
importance: Undecided → Low
assignee: nobody → Matthew Mosesohn (raytrac3r)
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to fuel-docs (master)

Fix proposed to branch: master
Review: https://review.openstack.org/62349

Changed in fuel:
status: New → In Progress
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to fuel-docs (master)

Reviewed: https://review.openstack.org/62349
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=37b051bdcff99b47263688f230124d952430c24a
Submitter: Jenkins
Branch: master

commit 37b051bdcff99b47263688f230124d952430c24a
Author: Matthew Mosesohn <email address hidden>
Date: Mon Dec 16 16:50:51 2013 +0400

    Removed confusing notes about hyper threading in hardware sizing

    Change-Id: Iae7ecaf6eb0887949288b22767bdf1b3108832bb
    Closes-Bug: #1260166

Changed in fuel:
status: In Progress → Fix Committed
Changed in fuel:
status: Fix Committed → Fix Released
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