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Libvirt native C API and daemons
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Claudio Fontana c61d1e9ba0 virfile: set pipe size in virFileWrapperFdNew to improve throughput
currently the only user of virFileWrapperFdNew is the qemu driver;
virsh save is very slow with a default pipe size.
This change improves throughput by ~400% on fast nvme or ramdisk.

Best value currently measured is 1MB, which happens to be also
the kernel default for the pipe-max-size.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2022-03-28 12:56:33 +02:00
.ctags.d maint: Add support for .ctags.d 2019-05-31 17:54:28 +02:00
.github/workflows Switch to new GitHub repo-lockdown configuration 2021-10-20 14:27:20 +01:00
.gitlab/issue_templates gitlab: Add disclaimer to the 'feature' issue template 2021-07-30 15:26:45 +02:00
build-aux Drop YouCompleteMe and color_coded integration 2022-03-17 14:35:05 +01:00
ci ci: integration: Rename all Avocado standard stream log files to *.log 2022-03-22 17:11:51 +01:00
docs Revert "domain: add tsc.on_reboot element" 2022-03-28 10:00:18 +02:00
examples examples: drop some conditionals checks from macros 2022-01-17 10:44:33 +00:00
include lib: Introduce 'virDomainQemuMonitorCommandWithFiles' 2022-03-01 13:29:49 +01:00
po Translated using Weblate (German) 2022-03-25 10:03:51 +01:00
scripts syntax-check: Rework mock-noinline to get all files at once 2022-03-07 10:31:21 +01:00
src virfile: set pipe size in virFileWrapperFdNew to improve throughput 2022-03-28 12:56:33 +02:00
tests Revert "qemu: add support for tsc.on_reboot element" 2022-03-28 10:00:18 +02:00
tools virsh: Don't open code virshEnumComplete() 2022-03-15 13:36:58 +01:00
.ctags ctags: Generate tags for headers, i.e. function prototypes 2018-09-18 14:21:33 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.editorconfig Add .editorconfig 2019-09-06 12:47:46 +02:00
.gitattributes Add .gitattributes file 2022-03-17 14:33:12 +01:00
.gitignore gitignore: Ignore __pycache__ directory 2021-03-22 12:05:11 +01:00
.gitlab-ci.yml gitlab-ci: Introduce new 'integration_tests' pipeline stage 2022-03-17 16:09:53 +01:00
.gitmodules gnulib: delete all gnulib integration 2020-02-07 15:03:54 +00:00
.gitpublish gitpublish: add a subject prefix 2020-01-16 13:04:11 +00:00
.mailmap mailmap: consolidate my email addresses 2020-10-06 12:05:09 +02:00
AUTHORS.rst.in AUTHORS: Add myself to the list of commiters 2021-07-14 14:51:19 +02:00
config.h configure: bump min required CLang to 6.0 / XCode 10.0 2022-01-17 10:44:29 +00:00
configmake.h.in meson: generate configmake.h 2020-08-03 09:26:48 +02:00
CONTRIBUTING.rst meson: adjust our documentation to mention meson instead of autoconf 2020-08-03 09:27:09 +02:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
gitdm.config gitdm: add 'ibm' file 2019-10-18 17:32:52 +02:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in spec: Move virkey* manual pages from -daemon to -client 2022-03-17 14:45:51 +01:00
meson_options.txt meson: Introduce qemu_datadir option 2021-11-18 15:48:59 +01:00
meson.build meson: do not look for libparted if not requested 2022-03-25 15:31:56 +01:00
mingw-libvirt.spec.in rpm: fix mingw obsoletes lines 2021-08-02 13:47:20 +01:00
NEWS.rst NEWS: Mention that VIR_MIGRATE_PARAM_TLS_DESTINATION works now for non-shared storage migration 2022-03-11 15:17:06 +01:00
README.rst README: drop Travis CI badge 2020-08-03 15:08:28 +02:00
run.in run: gracefully handle SIGHUP, SIGQUIT, SIGTERM 2022-03-10 08:06:12 +00:00

.. image:: https://gitlab.com/libvirt/libvirt/badges/master/pipeline.svg
     :target: https://gitlab.com/libvirt/libvirt/pipelines
     :alt: GitLab CI Build Status
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     :target: https://bestpractices.coreinfrastructure.org/projects/355
     :alt: CII Best Practices
.. image:: https://translate.fedoraproject.org/widgets/libvirt/-/libvirt/svg-badge.svg
     :target: https://translate.fedoraproject.org/engage/libvirt/
     :alt: Translation status

==============================
Libvirt API for virtualization
==============================

Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.

For some of these hypervisors, it provides a stateful management
daemon which runs on the virtualization host allowing access to the
API both by non-privileged local users and remote users.

Layered packages provide bindings of the libvirt C API into other
languages including Python, Perl, PHP, Go, Java, OCaml, as well as
mappings into object systems such as GObject, CIM and SNMP.

Further information about the libvirt project can be found on the
website:

https://libvirt.org


License
=======

The libvirt C API is distributed under the terms of GNU Lesser General
Public License, version 2.1 (or later). Some parts of the code that are
not part of the C library may have the more restrictive GNU General
Public License, version 2.0 (or later). See the files ``COPYING.LESSER``
and ``COPYING`` for full license terms & conditions.


Installation
============

Instructions on building and installing libvirt can be found on the website:

https://libvirt.org/compiling.html

Contributing
============

The libvirt project welcomes contributions in many ways. For most components
the best way to contribute is to send patches to the primary development
mailing list. Further guidance on this can be found on the website:

https://libvirt.org/contribute.html


Contact
=======

The libvirt project has two primary mailing lists:

* libvirt-users@redhat.com (**for user discussions**)
* libvir-list@redhat.com (**for development only**)

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html