Difference between revisions of "Xen Project 4.10 Acknowledgements"

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Note that the acknowledgements have been created based on 4.10.0-rc7, which are provisional. The table assumes we release on December 13th, 2017
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Note that the acknowledgements have been created based on 4.10.0-rc7, which are provisional. The table assumes we release on December 13th, 2017 based on 4.10.0-rc7 including some security fixes that are currently under embargo. These fixes are not included in these statistics.
  
 
== Overview ==
 
== Overview ==

Revision as of 12:19, 5 December 2017

Note that the acknowledgements have been created based on 4.10.0-rc7, which are provisional. The table assumes we release on December 13th, 2017 based on 4.10.0-rc7 including some security fixes that are currently under embargo. These fixes are not included in these statistics.

Overview

As we have made significant changes to the xen source tree structure, we will count acknowledgements in line with RFC Xen 4.6 Acknowledgements.

The following table compares Xen 4.9 with Xen 4.10. We also cover changes to Xen only components in Linux, FreeBSD, NetBSD and QEMU in the "Drivers and Devices" column, which are primarily made by Xen Project developers. Note that the number is not part of the 4.10 Hypervisor Total.

Attribute 4.9 Hypervisor Total [ 1 ] 4.10 Hypervisor Total [ 1 ] 4.10 Hypervisor Core [ 2 ] 4.10 Hypervisor Other [ 3 ] Drivers and Devices (other projects) [ 4 ]
Release Cycle 203 days
128 dev window/days [ 6 ]
6.3 months
163 days [ 7 ]
111 dev window/days [ 6 ]
5.4 months
Development Velocity
Changesets 1549 1193 (+TBD%) 1086 107
Series (=Features) [ 5 ] 481 256 (-TBD%)
Average Size of Feature 3.22 4.7 (+TBD%)
Changes / Day 7.6 7.3 (-TBD%)
Changes / Dev Day [ 6 ] 11.1 10.7 (+TBD%)
Features / Day [ 5 ] 2.4 1.6 (-TBD%)
Code Review Statistics
Review Comments [ 5 ] 8349 5734 (+TBD%)
Review Comments / Day [ 5 ] 41.1 35.2 (-TBD%)
Review Comments / Dev Day [ 6 ] 65.2 51.7 (+TBD%)
Comments / Series [ 5 ] 17.4 22.4 (+TBD%)
Code Churn
Lines Added 82336 65399 (+TBD%) 54016 11383
Lines Removed 47014 27261 (-TBD%) 25449 1812
Engagement
Individuals 85 73 (+TBD%)
Employers [ 8 ] 29 27 (+TBD%)


4.10 Hypervisor Only Code Contributions [ 2 ]

Breakdown by Individual

This table is sortable : please click on the Sortable.gif icon besides the column header, to sort by a specific column.

Name Sortable.gif Lines Added Sortable.gif Lines Removed Sortable.gif Changesets Sortable.gif


Code Contributions to Xen Related Drivers and Devices in Linux, NetBSD, FreeBSD [ 4 ]

Breakdown by Individual

Icon Info.png Note that names from e-mail addresses from the FreeBSD and NetBSD communities have not resolved properly


This table is sortable : please click on the Sortable.gif icon besides the column header, to sort by a specific column.

Name Sortable.gif Lines Added Sortable.gif Lines Removed Sortable.gif Changesets Sortable.gif


4.9 Hypervisor Reviewers [ 5 ]

This table is sortable : please click on the Sortable.gif icon besides the column header, to sort by a specific column. Note that in the table below, we only count review comments by community members other than comments by the author of a patch. We do not count replies and clarifications by the author of a patch that are made in response to review comments by others.

Name Sortable.gif Review Comments Sortable.gif


Footnotes

[ 1 ] Includes the following repos: xen, mini-os, osstest, raisin, livepatch-build-tools, xtf
[ 2 ] Includes the following repos: xen
[ 3 ] Includes the following repos: mini-os, osstest, raisin, livepatch-build-tools, xtf
[ 4 ] Includes commits to the following Xen specific directories of the following upstream projects: linux: arch/*/xen/ arch/*/include/asm/xen/ drivers/xen/ drivers/*/*xen* include/xen/ arch/*/pci/*xen* ; netbsd: sys/arch/xen; freebsd: sys/dev/xen/ sys/x86/xen sys/xen/; qemu: xen* hw/i386/xen hw/xenpv hw/*/xen* hw/xen include/*/xen*, xen windows pv drivers
[ 5 ] This data was extracted from the Xen Project Code Review Dashboard
[ 6 ] These are the days/months during which we were not in code freeze
[ 7 ] Calculated using 4.9.0-rc3. Note that the code freeze for this release was 4 weeks longer than expected, due to several security issues being fixed towards the end of the release cycle and were held under embargo.
[ 8 ] Only known employers are used. Unknown employers were discounted. Note that in [1] that clean-up did not happen