OpenStack Compute (Nova)
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Sean Mooney 90b206894a add caching to _build_regex_range
- _build_regex_range is called 17 times on
  import of nova.api.validation.parameters_types.
  _build_regex_range internally calls re.escape
  and valid_char  on every char returned
  from _get_all_chars.
  _get_all_chars yields all chars up to 0xffff.
  As a result re.escape and valid_char are called
  1.1 million times when
  nova.api.validation.parameters_types is imported.

- This change add a memorize decorator and uses
  it to cache _build_regex_range

- This change does not cache valid_char,
  _is_printable or re.escape as hashing and
  caching them for each invocation would
  be far more costly both in time and memory
  than computing the result.

Change-Id: Ic1f2c560a6da815b26fdf770450bbe439d18d4f9
Closes-Bug: #1790195
2018-09-16 19:56:15 +00:00
api-guide/source Update api-guide and api-ref to be clear about forced-down 2018-08-17 01:41:31 +00:00
api-ref/source Merge "Making consistent used of GiB and MiB in API ref" 2018-08-22 04:03:01 +00:00
contrib trivial: Remove "vif" script 2017-08-07 16:00:10 +01:00
devstack Skip test_resize_server_revert_with_volume_attached in nova-lvm 2018-07-19 12:22:18 -04:00
doc Fix a broken conf file description in networking doc 2018-08-29 15:46:35 +09:00
etc/nova Add osprofiler config options to generated reference 2018-06-16 12:46:19 +00:00
gate Add placement perf info gathering hook to end of nova-next 2018-08-14 15:42:08 +01:00
nova add caching to _build_regex_range 2018-09-16 19:56:15 +00:00
placement-api-ref Merge "Document no content on POST /reshaper 204" 2018-08-29 09:22:16 +00:00
playbooks/legacy Add placement perf info gathering hook to end of nova-next 2018-08-14 15:42:08 +01:00
releasenotes Merge "[placement] Add /reshaper handler for POST" 2018-08-29 09:22:10 +00:00
tools Make Xen code py3-compatible 2018-08-10 20:04:19 +00:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Implement granular policy rules for placement 2018-05-17 11:12:16 -04:00
.gitreview Add .gitreview config file for gerrit. 2011-10-24 15:07:19 -04:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.stestr.conf Finish stestr migration 2017-11-24 16:51:12 -05:00
.zuul.yaml Merge "Add tempest-slow job to run the tempest slow tests" 2018-08-08 23:57:20 +00:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Removed unnecessary parantheses in yield statements 2018-03-07 16:44:36 +09:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Fix broken URLs 2017-09-07 15:42:31 +02:00
README.rst Docs: modernise links 2018-03-24 20:27:11 +08:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Merge "Bindep does not catch missing libpcre3-dev on Ubuntu" 2018-02-14 07:31:09 +00:00
lower-constraints.txt Revert "Don't use '_TransactionContextManager._async'" 2018-08-28 17:18:51 +01:00
requirements.txt Revert "Don't use '_TransactionContextManager._async'" 2018-08-28 17:18:51 +01:00
setup.cfg Remove ChanceScheduler 2018-08-20 15:56:13 +01:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Cleanup ugly stub in TestLocalDeleteAllocations 2018-05-16 09:23:55 -04:00
tox.ini Remove blacklisted py3 xen tests 2018-08-14 16:34:19 +00:00

README.rst

Team and repository tags

image

OpenStack Nova

OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.

Use the following resources to learn more.

API

To learn how to use Nova's API, consult the documentation available online at:

For more information on OpenStack APIs, SDKs and CLIs in general, refer to:

Operators

To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:

In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:

Developers

For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.

Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.

Further developer focused documentation is available at:

Other Information

During each Summit and Project Team Gathering, we agree on what the whole community wants to focus on for the upcoming release. The plans for nova can be found at: