Michal Privoznik 0cc6f8931f capabilities: Expose NUMA interconnects ... Links between NUMA nodes can have different latencies and bandwidths. This info is newly defined in ACPI 6.2 under Heterogeneous Memory Attribute Table (HMAT) table. Linux kernel learned how to report these values under sysfs and thus we can expose them in our capabilities XML. The sysfs interface is documented in kernel's Documentation/admin-guide/mm/numaperf.rst. Long story short, two nodes can be in initiator-target relationship. A node can be initiator if it has a CPU or a device that's capable of initiating memory transfer. Therefore a node that has just memory can only be target. An initiator-target link can then have any combination of {bandwidth, latency} - {access, read, write} attribute (6 in total). However, the standard says access is applicable iff read and write values are the same. Therefore, we really have just four combinations of attributes: bandwidth-read, bandwidth-write, latency-read, latency-write. This is the combination that kernel reports anyway. Then, under /sys/system/devices/node/nodeX/acccessN/initiators we find values for those 4 attributes and also symlinks named "nodeN" which then represent initiators to nodeX. For instance: /sys/system/node/node1/access1/initiators/node0 -> ../../node0 /sys/system/node/node1/access1/initiators/read_bandwidth /sys/system/node/node1/access1/initiators/read_latency /sys/system/node/node1/access1/initiators/write_bandwidth /sys/system/node/node1/access1/initiators/write_latency This means that node0 is initiator and node1 is target and values of the interconnect can be read. In theory, there can be separate links to memory side caches too (e.g. one link from node X to node Y's main memory, another from node X to node Y's L1 cache, another one to L2 cache and so on). But sysfs does not express this relationship just yet. The "accessN" means either "access0" or "access1". The difference is that while the former expresses the best interconnect between two nodes including CPUS and I/O devices (such as GPUs and NICs), the latter includes only CPUs and thus is what we need. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1786309 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>		2021-06-15 11:03:25 +02:00
..
fonts	meson: add rule to build and install only web documentation	2020-08-03 09:27:06 +02:00
gitdm	gitdm: add more individual contributors	2020-09-25 16:00:06 +02:00
go	docs: introduce stubs for new libvirt Go packages	2021-06-07 17:04:14 +01:00
html	meson: add rule to build and install only web documentation	2020-08-03 09:27:06 +02:00
internals	lib: Drop internal virXXXPtr typedefs	2021-04-13 17:00:38 +02:00
js	meson: add rule to build and install only web documentation	2020-08-03 09:27:06 +02:00
kbase	docs: virtiofs: describe memfd memory backend	2021-06-07 16:35:16 +02:00
logos	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
manpages	virsh: Expose new win-dmp dump format	2021-05-20 16:24:06 +02:00
schemas	capabilities: Expose NUMA interconnects	2021-06-15 11:03:25 +02:00
404.html.in	Use https:// links for most sites	2017-10-16 10:22:34 +01:00
acl.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
aclpolkit.rst	docs: html.in: Convert aclpolkit to rst	2021-03-15 17:31:35 +01:00
advanced-tests.rst	lib: Drop internal virXXXPtr typedefs	2021-04-13 17:00:38 +02:00
android-chrome-192x192.png
android-chrome-256x256.png
api_extension.rst	lib: Drop internal virXXXPtr typedefs	2021-04-13 17:00:38 +02:00
api.rst	docs: html.in: Convert api to rst	2021-03-15 17:31:35 +01:00
apple-touch-icon.png
apps.rst	docs: html.in: Convert apps to rst	2021-03-15 17:31:35 +01:00
auditlog.rst	docs: html.in: Convert auditlog to rst	2021-03-15 17:31:57 +01:00
auth.rst	docs: auth: Fix a couple of stylistic issues	2021-03-23 17:55:06 +01:00
best-practices.rst	Prefer https: for Red Hat websites	2020-09-01 21:58:46 +02:00
bindings.rst	docs: html.in: Convert bindings to rst	2021-03-15 17:32:27 +01:00
browserconfig.xml
bugs.html.in	Prefer https: for Red Hat websites	2020-09-01 21:58:46 +02:00
cgroups.html.in	vircgroup: introduce nested cgroup to properly work with systemd	2021-02-10 13:37:12 +01:00
ci.rst	docs: switch ci status page to use Go -module repos	2021-06-09 14:48:40 +01:00
coding-style.rst	lib: Drop internal virXXXPtr typedefs	2021-04-13 17:00:38 +02:00
committer-guidelines.rst	meson: adjust our documentation to mention meson instead of autoconf	2020-08-03 09:27:09 +02:00
compiling.rst	docs/compiling: Add note on how to check minimum meson version	2021-03-16 10:49:33 +01:00
contact.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
contribute.html.in	Fix errors in contribute.html.in	2020-09-10 09:13:52 +02:00
csharp.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
daemons.rst	docs: Small fixes for daemons.rst	2021-06-07 08:05:59 -06:00
dbus.html.in	docs: point to GitLab as the primary git hosting	2020-06-03 13:38:33 +02:00
developer-tooling.rst	docs: Add developer-tooling.rst	2020-04-08 09:32:35 +02:00
devguide.html.in	docs: update all GIT repo examples to use https:// protocol	2018-03-21 14:48:01 +00:00
docs.html.in	docs: xsl: Unify stylability of main container element	2020-11-16 14:04:04 +01:00
downloads.html.in	downloads.html: Add a link to GPG key used signing releases	2021-04-09 13:48:54 +02:00
drivers.html.in	Add basic driver for the Cloud-Hypervisor	2021-06-04 10:56:06 +01:00
drvbhyve.html.in	docs: bhyve: document virtio-9p support	2020-10-12 15:26:00 +04:00
drvch.rst	Add basic driver for the Cloud-Hypervisor	2021-06-04 10:56:06 +01:00
drvesx.html.in	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
drvhyperv.html.in	docs: drop support for Windows versions prior to 2012R2	2020-11-09 15:26:02 +00:00
drvlxc.html.in	docs: Document lxc.conf location	2021-03-12 10:52:41 +01:00
drvnodedev.html.in	node_device: detecting mdev_types capability on CSS devices	2020-11-11 16:56:33 +01:00
drvopenvz.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
drvqemu.rst	qemu: Formally deprecate support for qemu < 2.11	2021-05-03 12:14:44 +02:00
drvremote.html.in
drvsecret.html.in	docs: fix since version in driver documentation	2020-01-27 17:36:05 +01:00
drvtest.html.in
drvvbox.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
drvvirtuozzo.html.in	Virtuozzo URL has been changed	2021-03-24 14:24:55 +03:00
drvvmware.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
drvxen.html.in	docs: Document libxl.conf location	2021-03-12 10:52:51 +01:00
errors.html.in	docs: Grammar and spelling fixes	2018-05-03 12:40:37 +01:00
favicon-16x16.png
favicon-32x32.png
favicon.ico
firewall.html.in	doc: document new filters and not documented ones	2020-11-04 17:21:45 +01:00
format.html.in	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
formatbackup.rst	conf: backup: Format index of 'store'	2020-12-08 15:12:34 +01:00
formatcaps.html.in	conf: add support for specifying CPU "dies" parameter	2020-01-16 15:11:42 +00:00
formatcheckpoint.rst	conf: checkpoint: Don't require <domain> when redefining checkpoints	2020-12-04 16:15:03 +01:00
formatdomain.rst	docs: formatdomain: Document disk serial truncation status quo	2021-06-07 17:01:14 +02:00
formatdomaincaps.html.in	conf: domcaps: Report device <filesystem>	2021-05-18 14:33:21 +02:00
formatnetwork.html.in	Fix format network dns doc	2021-01-26 14:29:48 +01:00
formatnetworkport.html.in	docs: formatnetworkport: Fix typos	2021-04-01 13:32:25 +02:00
formatnode.html.in	nodedev: Revert auto-start property for mdevs	2021-05-27 15:38:28 +02:00
formatnwfilter.html.in	doc: document new filters and not documented ones	2020-11-04 17:21:45 +01:00
formatsecret.html.in	docs: secret: Unify and sanitize examples on how to set secret value	2020-01-28 18:10:36 +01:00
formatsnapshot.html.in	conf: snapshot: Add support for <metadata_cache>	2021-01-08 15:27:00 +01:00
formatstorage.html.in	storage: add support for QCOW2 cluster_size option	2021-05-21 14:00:43 +02:00
formatstoragecaps.html.in	docs: Fix link for virConnectGetStoragePoolCapabilities	2020-12-02 16:15:43 +01:00
formatstorageencryption.html.in	docs: support qcow2 format in luks encryption volume	2021-01-05 13:54:11 +01:00
generic.css	docs: css: Make definition list 'code' entries bold when converted from rst	2020-08-03 18:41:11 +02:00
glib-adoption.rst	docs: glib-adoption: add string arrays and objects	2020-10-02 14:10:44 +02:00
goals.html.in
governance.html.in	docs/governance: Clarify the version number of the LGPL	2019-01-25 14:04:20 +01:00
hacking.rst	Revert "docs: Drop glib-adoption.rst"	2020-10-02 14:10:40 +02:00
hooks.html.in	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
index.html.in	docs: use a relative link to the kbase page	2021-02-03 16:33:18 +00:00
internals.html.in
java.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
libvirt-daemon-arch.png
libvirt-daemon-arch.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
libvirt-driver-arch.png
libvirt-driver-arch.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
libvirt-go-xml.rst	docs: introduce stubs for new libvirt Go packages	2021-06-07 17:04:14 +01:00
libvirt-go.rst	docs: introduce stubs for new libvirt Go packages	2021-06-07 17:04:14 +01:00
libvirt-object-model.png
libvirt-object-model.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
libvirt-virConnect-example.png
libvirt-virConnect-example.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
libvirt.css	docs: css: Modify appearance of the kbase directory page	2020-11-16 14:04:04 +01:00
logging.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
main.css
manifest.json
meson.build	docs: introduce stubs for new libvirt Go packages	2021-06-07 17:04:14 +01:00
migration-managed-direct.png
migration-managed-direct.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
migration-managed-p2p.png
migration-managed-p2p.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
migration-native.png
migration-native.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
migration-tunnel.png
migration-tunnel.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
migration-unmanaged-direct.png
migration-unmanaged-direct.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
migration.html.in	docs: migration: remove xenmigr	2021-01-05 13:40:25 +01:00
mobile.css	docs: add advanced search capabilities	2019-04-11 15:20:17 +01:00
mstile-150x150.png
newapi.xsl	docs: fix libvirt go-import metadata in pages and links in 404 page	2020-08-04 17:06:33 +01:00
newreposetup.rst	docs: Document CIRRUS_GITHUB_REPO variable	2020-06-11 12:03:41 +02:00
node.gif
node.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
nss.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
page.xsl	docs: xsl: Unify stylability of main container element	2020-11-16 14:04:04 +01:00
pci-addresses.rst	Fix spelling	2021-04-15 15:42:21 +02:00
pci-hotplug.html.in	Prefer https: for libguestfs.org links	2020-09-01 21:58:46 +02:00
php.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
platforms.rst	docs/platforms: Drop separate link to qemu-kvm on repology.org	2021-04-12 16:09:41 +02:00
programming-languages.rst	Fix capitalization "CLang" -> "Clang"	2020-11-12 15:01:42 +01:00
python.html.in	doc/python: Update to Python 3	2020-04-20 14:06:25 +01:00
remote.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
securityprocess.html.in	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
site.xsl	docs: fix libvirt go-import metadata in pages and links in 404 page	2020-08-04 17:06:33 +01:00
storage.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
strategy.html.in	docs: fix misc spelling errors reported by codespell	2020-10-05 10:28:37 +01:00
structures.svg	docs: convert FIG files into SVG format	2020-07-10 16:07:02 +02:00
styleguide.rst	docs: Document list-tables as recommended	2020-05-11 13:55:27 +02:00
submitting-patches.rst	docs/submitting-patches: add reference to DCO	2020-10-09 09:12:39 +02:00
subsite.xsl	docs: fix libvirt go-import metadata in pages and links in 404 page	2020-08-04 17:06:33 +01:00
support.html.in	docs: Grammar and spelling fixes	2018-05-03 12:40:37 +01:00
testapi.html.in	docs: point to GitLab as the primary git hosting	2020-06-03 13:38:33 +02:00
testsuites.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
testtck.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
tlscerts.html.in	docs: tlscerts: Fix a few broken links	2021-02-16 08:35:09 +01:00
uri.html.in	docs: Add 'known_hosts_verify' parameter for libssh(2) connection uris	2021-02-05 16:02:22 +01:00
virshcmdref.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00
windows.html.in	Prefer https: everywhere where possible	2020-09-01 21:58:46 +02:00