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b7e05e4ed3
Please note that this is a development version of nova. Many features are not available. Currently nova works on FreeBSD 11 and supports QEMU and Xen. Common issues: - Security groups are not implemented - ARP spoofing, DHCP isolation protection are not implemented - Nova services work from the root user - No IPv6 support QEMU issues: - Need to enable serialconsole (TCP) - Need to disable online CPU tracking - Cannot mount cinder volumes Xen issues: - Live snapshots don't work - No support for cinder volume hot-plugging - XENBUS delay (5 min) when using qemu driver and COW images - Some Linux images cannot be booted For further FreeBSD specific notes please refer to port's pkg-message. PR: 215151 Submitted by: Alexander Nusov (alexander.nusov@nfvexpress.com)
63 lines
2.2 KiB
Diff
63 lines
2.2 KiB
Diff
From 8eb8fb92f21243ae0e41f2f626398d09582de29b Mon Sep 17 00:00:00 2001
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From: Alexander Nusov <alexander.nusov@nfvexpress.com>
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Date: Fri, 25 Nov 2016 17:36:10 +0300
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Subject: [PATCH] add online cpu tracking option
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---
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nova/conf/libvirt.py | 3 +++
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nova/virt/libvirt/driver.py | 18 +++++++++++-------
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2 files changed, 14 insertions(+), 7 deletions(-)
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diff --git a/nova/conf/libvirt.py b/nova/conf/libvirt.py
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index 2eba080..d133b03 100644
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--- a/nova/conf/libvirt.py
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+++ b/nova/conf/libvirt.py
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@@ -471,6 +471,9 @@ events`, refer https://libvirt.org/formatdomain.html#elementsPerf .
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None
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"""),
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+ cfg.BoolOpt('online_cpu_tracking',
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+ default=True,
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+ help='Enable online cpu tracking'),
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]
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libvirt_imagebackend_opts = [
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diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
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index f9225de..f19ef70 100644
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--- a/nova/virt/libvirt/driver.py
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+++ b/nova/virt/libvirt/driver.py
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@@ -5188,11 +5188,12 @@ class LibvirtDriver(driver.ComputeDriver):
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cells = []
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allowed_cpus = hardware.get_vcpu_pin_set()
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- online_cpus = self._host.get_online_cpus()
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- if allowed_cpus:
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- allowed_cpus &= online_cpus
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- else:
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- allowed_cpus = online_cpus
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+ if CONF.libvirt.online_cpu_tracking:
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+ online_cpus = self._host.get_online_cpus()
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+ if allowed_cpus:
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+ allowed_cpus &= online_cpus
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+ else:
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+ allowed_cpus = online_cpus
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def _get_reserved_memory_for_cell(self, cell_id, page_size):
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cell = self._reserved_hugepages.get(cell_id, {})
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@@ -5205,8 +5206,11 @@ class LibvirtDriver(driver.ComputeDriver):
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if cpu.siblings else ()
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for cpu in cell.cpus)
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))
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- cpuset &= allowed_cpus
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- siblings = [sib & allowed_cpus for sib in siblings]
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+ if CONF.libvirt.online_cpu_tracking or allowed_cpus:
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+ cpuset &= allowed_cpus
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+ siblings = [sib & allowed_cpus for sib in siblings]
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+
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+
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# Filter out singles and empty sibling sets that may be left
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siblings = [sib for sib in siblings if len(sib) > 1]
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--
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2.8.1
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