Difference between revisions of "Xen Project 4.9 Acknowledgements"

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(Created page with "Note that the acknowledgements have been created based on 4.9.0-rc7, which was the final RC for Xen 4.9.0. If there is another release candidate, data needs to be updated.")
 
(Copied data from 4.8 page and cored out somer table, with the exception of the overview table)
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Note that the acknowledgements have been created based on 4.9.0-rc7, which was the final RC for Xen 4.9.0. If there is another release candidate, data needs to be updated.
  
Note that the acknowledgements have been created based on 4.9.0-rc7, which was the final RC for Xen 4.9.0. If there is another release candidate, data needs to be updated.
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== Overview ==
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As we have made significant changes to the xen source tree structure, we will count acknowledgements in line with [http://lists.xenproject.org/archives/html/xen-devel/2015-10/msg01063.html RFC Xen 4.6 Acknowledgements].
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The following table compares Xen 4.8 with Xen 4.9. 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 4.9 Hypervisor Total.
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{|class="zebra"
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!style="width: 170px;"|Attribute
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!style="width: 170px;"|[[Xen_Project_4.8_Acknowledgements|4.8 Hypervisor Total]] <sup>[ 1 ]</sup>
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!style="width: 170px; color: blue;"|4.9 Hypervisor Total <sup>[ 1 ]</sup>
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!style="width: 130px;"|4.9 Hypervisor Core<sup>[ 2 ]</sup>
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!style="width: 130px;"|4.9 Hypervisor Other <sup>[ 3 ]</sup>
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!style="width: 130px;"|Drivers and Devices (other projects)<sup>[ 4 ]</sup>
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|-
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|'''Release Cycle'''
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|255 days<br>197 dev window/days<sup>[ 6 ]</sup><br>8.4 months
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|style="color: blue;"|'''161 days<br>124 dev window/days<sup>[ 6 ]</sup><br>5.3 months'''
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|
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|
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!
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|-
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!colspan="6"|Development Velocity
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|-
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|'''Changesets'''
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|1887
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|style="color: blue;"|'''1245'''
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|967
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|278
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!321
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|-
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|'''Series (=Features)''' <sup>[ 5 ]</sup>
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|1025
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|style="color: blue;"|'''575'''
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|
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|
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!
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|-
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|'''Average Size of Feature'''
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|1.84
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|style="color: blue;"|'''2.17''' <span style="color:green">(+15%)</span>
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|
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|
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!
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|-
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|'''Changes / Day'''
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|7.5
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|style="color: blue;"|'''7.7''' <span style="color:green">(+3%)</span>
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|
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|
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!
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|-
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|'''Changes / Dev Day''' <sup>[ 6 ]</sup>
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|9.6
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|style="color: blue;"|'''10.0''' <span style="color:green">(+4%)</span>
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|
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|
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!
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|-
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|'''Features / Day''' <sup>[ 5 ]</sup>
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|4.0
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|style="color: blue;"|'''3.6''' <span style="color:red">(-11%)</span>
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|
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|
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!
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|-
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!colspan="6"|Code Review Statistics
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|-
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|'''Review Comments''' <sup>[ 5 ]</sup>
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|11628
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|style="color: blue;"|'''6854'''
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|
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|
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!
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|-
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|'''Review Comments / Day''' <sup>[ 5 ]</sup>
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|45.6
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|style="color: blue;"|'''43.6''' <span style="color:red">(-4%)</span>
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|
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|
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!
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|-
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|'''Comments / Series''' <sup>[ 5 ]</sup>
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|11.3
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|style="color: blue;"|'''11.9''' <span style="color:green">(+4%)</span>
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|
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|
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!
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|-
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!colspan="6"|Code Churn
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|-
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|'''Lines Added'''
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|106606
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|style="color: blue;"|'''78899'''
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|70833
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|8066
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!18421
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|-
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|'''Lines Removed'''
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|37160
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|style="color: blue;"|'''62325'''
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|59502
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|2823
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!13775
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|-
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!colspan="6"|Engagement
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|-
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|'''Individuals'''
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|102
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|style="color: blue;"|'''68'''
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|68
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|5
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!59
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|-
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|'''Employers'''
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|36
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|style="color: blue;"|'''34'''
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|33
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|4
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!37
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|}
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<br>
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== 4.9 Hypervisor Only Code Contributions <sup>[ 2 ]</sup> ==
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=== Breakdown by Individual ===
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{{TODOLeft|Insert data - will have to do this post the 4.9 release}}
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This table is sortable : please click on the {{Sortable}} icon besides the column header, to sort by a specific column.
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{|class="zebra sortable"
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!style="min-width: 200px;"|Name {{Sortable}}
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!style="min-width: 110px;"|Lines Added {{Sortable}}
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!style="min-width: 110px;"|Lines Removed {{Sortable}}
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!style="min-width: 110px;"|Changesets {{Sortable}}
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|-
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|}
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<br>
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== 4.9 Hypervisor Related Code Contributions <sup>[ 3 ]</sup> ==
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=== Breakdown by Individual ===
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Note that the table below does '''not cover contributions to Linux, NetBSD, FreeBSD, QEMU, libvirt''' and other related projects. It lists contributors to mini-os (formerly part of xen.git), osstest (our test code and test cases), raisin (a deployment and test tool), xtf.git and livepatch-build-tools (tools to builld livepatch payloads).
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This table is sortable : please click on the {{Sortable}} icon besides the column header, to sort by a specific column.
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{|class="zebra sortable"
  +
!style="min-width: 200px;"|Name {{Sortable}}
  +
!style="min-width: 110px;"|Lines Added {{Sortable}}
  +
!style="min-width: 110px;"|Lines Removed {{Sortable}}
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!style="min-width: 110px;"|Changesets {{Sortable}}
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|-
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|}
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<br>
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== Code Contributions to Xen Related Drivers and Devices in Linux, NetBSD, FreeBSD <sup>[ 4 ]</sup> ==
  +
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=== Breakdown by Individual ===
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{{TODOLeft|Insert data - will have to do this post the 4.9 release}}
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  +
This table is sortable : please click on the {{Sortable}} icon besides the column header, to sort by a specific column.
  +
{|class="zebra sortable"
  +
!style="min-width: 200px;"|Name {{Sortable}}
  +
!style="min-width: 110px;"|Lines Added {{Sortable}}
  +
!style="min-width: 110px;"|Lines Removed {{Sortable}}
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!style="min-width: 110px;"|Changesets {{Sortable}}
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|-
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|}
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<br>
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== 4.9 Hypervisor Reviewers <sup> [ 5 ] </sup> ==
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{{TODOLeft|Insert data - will have to do this post the 4.9 release}}
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This table is sortable : please click on the {{Sortable}} 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.
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{|class="zebra sortable"
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!style="min-width: 200px;"|Name {{Sortable}}
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!style="min-width: 110px;"|Review Comments {{Sortable}}
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|-
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|}
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<br>
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== Footnotes ==
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<span id="Foot1"><sup>[ 1 ]</sup> Includes the following repos: ''xen'', ''mini-os'', ''osstest'', ''raisin'', ''livepatch-build-tools'', ''xtf'' </span><br>
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<span id="Foot2"><sup>[ 2 ]</sup> Includes the following repos: ''xen''</span><br>
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<span id="Foot3"><sup>[ 3 ]</sup> Includes the following repos: ''mini-os'', ''osstest'', ''raisin'', ''livepatch-build-tools'', ''xtf'' </span><br>
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<span id="Foot4"><sup>[ 4 ]</sup> 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*, [http://xenproject.org/developers/teams/windows-pv-drivers.html ''xen windows pv drivers'']
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</span><br>
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<span id="Foot5"><sup>[ 5 ]</sup> This data was extracted from the [https://kibana.bitergia.com/xen Xen Project Code Review Dashboard]</span><br>
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<span id="Foot6"><sup>[ 6 ]</sup> These are the days/months during which we were not in code freeze</span><br>
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[[Category:Xen]]
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[[Category:Xen 4.9]]

Revision as of 10:14, 5 June 2017

Note that the acknowledgements have been created based on 4.9.0-rc7, which was the final RC for Xen 4.9.0. If there is another release candidate, data needs to be updated.

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 4.8 with Xen 4.9. 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 4.9 Hypervisor Total.

Attribute 4.8 Hypervisor Total [ 1 ] 4.9 Hypervisor Total [ 1 ] 4.9 Hypervisor Core[ 2 ] 4.9 Hypervisor Other [ 3 ] Drivers and Devices (other projects)[ 4 ]
Release Cycle 255 days
197 dev window/days[ 6 ]
8.4 months 		161 days
124 dev window/days[ 6 ]
5.3 months
Development Velocity
Changesets 1887 1245 967 278 321
Series (=Features) [ 5 ] 1025 575
Average Size of Feature 1.84 2.17 (+15%)
Changes / Day 7.5 7.7 (+3%)
Changes / Dev Day [ 6 ] 9.6 10.0 (+4%)
Features / Day [ 5 ] 4.0 3.6 (-11%)
Code Review Statistics
Review Comments [ 5 ] 11628 6854
Review Comments / Day [ 5 ] 45.6 43.6 (-4%)
Comments / Series [ 5 ] 11.3 11.9 (+4%)
Code Churn
Lines Added 106606 78899 70833 8066 18421
Lines Removed 37160 62325 59502 2823 13775
Engagement
Individuals 102 68 68 5 59
Employers 36 34 33 4 37


4.9 Hypervisor Only Code Contributions [ 2 ]

Breakdown by Individual

Icon todo.png To Do:

Insert data - will have to do this post the 4.9 release


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 Related Code Contributions [ 3 ]

Breakdown by Individual

Note that the table below does not cover contributions to Linux, NetBSD, FreeBSD, QEMU, libvirt and other related projects. It lists contributors to mini-os (formerly part of xen.git), osstest (our test code and test cases), raisin (a deployment and test tool), xtf.git and livepatch-build-tools (tools to builld livepatch payloads).

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 todo.png To Do:

Insert data - will have to do this post the 4.9 release


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 ]

Icon todo.png To Do:

Insert data - will have to do this post the 4.9 release

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

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