Xen Project 4.9 Acknowledgements: Difference between revisions

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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-rc9, which is expected to be the final RC for Xen 4.9.0 (with the exception of some security fixes under embargo). 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 [http://lists.xenproject.org/archives/html/xen-devel/2015-10/msg01063.html 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.

{|class="zebra"
!style="width: 170px;"|Attribute
!style="width: 170px;"|[[Xen_Project_4.8_Acknowledgements|4.8 Hypervisor Total]] <sup>[ 1 ]</sup>
!style="width: 170px; color: blue;"|4.9 Hypervisor Total <sup>[ 1 ]</sup>
!style="width: 130px;"|4.9 Hypervisor Core <sup>[ 2 ]</sup>
!style="width: 130px;"|4.9 Hypervisor Other <sup>[ 3 ]</sup>
!style="width: 130px;"|Drivers and Devices (other projects) <sup>[ 4 ]</sup>
|-
|'''Release Cycle'''
|161 days<br>124 dev window/days <sup>[ 6 ] </sup><br>5.3 months
|style="color: blue;"|'''203 days <sup>[ 7 ]</sup><br>128 dev window/days <sup>[ 6 ]</sup><br>6.3 months'''
|
|
!
|-
!colspan="6"|Development Velocity
|-
|'''Changesets'''
|1245
|style="color: blue;"|'''1549''' <span style="color:green">(+19.6%)</span>
|1316
|233
!285
|-
|'''Series (=Features)''' <sup>[ 5 ]</sup>
|575
|style="color: blue;"|'''481''' <span style="color:red">(-19.5%)</span>
|
|
!
|-
|'''Average Size of Feature'''
|2.17
|style="color: blue;"|'''3.22''' <span style="color:green">(+32.6%)</span>
|
|
!
|-
|'''Changes / Day'''
|7.7
|style="color: blue;"|'''7.6''' <span style="color:red">(-0.9%)</span>
|
|
!
|-
|'''Changes / Dev Day''' <sup>[ 6 ]</sup>
|10.0
|style="color: blue;"|'''12.1''' <span style="color:green">(+17.4%)</span>
|
|
!
|-
|'''Features / Day''' <sup>[ 5 ]</sup>
|3.6
|style="color: blue;"|'''2.4''' <span style="color:red">(-51.9%)</span>
|
|
!
|-
!colspan="6"|Code Review Statistics
|-
|'''Review Comments''' <sup>[ 5 ]</sup>
|6960
|style="color: blue;"|'''8349''' <span style="color:green">(+16.6%)</span>
|
|
!
|-
|'''Review Comments / Day''' <sup>[ 5 ]</sup>
|43.6
|style="color: blue;"|'''41.1''' <span style="color:red">(-6.0%)</span>
|
|
!
|-
|'''Review Comments / Dev Day''' <sup>[ 6 ]</sup>
|56.1
|style="color: blue;"|'''65.2''' <span style="color:green">(+13.9%)</span>
|
|
!
|-
|'''Comments / Series''' <sup>[ 5 ]</sup>
|11.9
|style="color: blue;"|'''17.4''' <span style="color:green">(+31.4%)</span>
|
|
!
|-
!colspan="6"|Code Churn
|-
|'''Lines Added'''
|78899
|style="color: blue;"|'''82336''' <span style="color:green">(+4.2%)</span>
|77190
|5146
!21558
|-
|'''Lines Removed'''
|62325
|style="color: blue;"|'''47014''' <span style="color:red">(-67.8%)</span>
|45320
|1694
!16705
|-
!colspan="6"|Engagement
|-
|'''Individuals'''
|68
|style="color: blue;"|'''85''' <span style="color:green">(+20.9%)</span>
|83
|10
!79
|-
|'''Employers''' <sup>[ 8 ]</sup>
|25
|style="color: blue;"|'''29''' <span style="color:green">(+16.7%)</span>
|28
|6
!25
|}

<br>

== 4.9 Hypervisor Only Code Contributions <sup>[ 2 ]</sup> ==

=== Breakdown by Individual ===
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}}
!style="min-width: 110px;"|Changesets {{Sortable}}
|-
| Adrian Pop
| 291
| 2
| 1
|-
| Al Stone
| 20
| 2
| 1
|-
| Alistair Francis
| 7
| 7
| 5
|-
| Andre Przywara
| 1809
| 26
| 11
|-
| Andrew Cooper
| 8219
| 7907
| 258
|-
| Andrii Anisov
| 1
| 0
| 1
|-
| Andy Lutomirski
| 7
| 5
| 1
|-
| Andy Shevchenko
| 39
| 0
| 1
|-
| Anshul Makkar
| 14
| 2
| 2
|-
| Anthony PERARD
| 17
| 2
| 4
|-
| Armando Vega
| 773
| 707
| 2
|-
| Artem Mygaiev
| 2
| 2
| 2
|-
| Bhavesh Davda
| 1
| 3
| 1
|-
| Bhupinder Thakur
| 66
| 16
| 2
|-
| Boris Ostrovsky
| 238
| 114
| 14
|-
| Cedric Bosdonnat
| 2094
| 1574
| 49
|-
| Chao Gao
| 167
| 80
| 9
|-
| Charles Arnold
| 1
| 1
| 1
|-
| Cristian-Bogdan Sirb
| 4
| 1
| 1
|-
| Daniel Kiper
| 1634
| 579
| 14
|-
| Dario Faggioli
| 1847
| 631
| 34
|-
| David Woodhouse
| 17
| 9
| 1
|-
| Doug Goldstein
| 14
| 40
| 4
|-
| Edgar E. Iglesias
| 5
| 41
| 5
|-
| Elena Ufimtseva
| 294
| 59
| 3
|-
| Eric DeVolder
| 85
| 15
| 7
|-
| Fatih Acar
| 21
| 13
| 2
|-
| Feng Wu
| 194
| 143
| 6
|-
| George Dunlap
| 170
| 73
| 9
|-
| Haozhong Zhang
| 464
| 345
| 24
|-
| He Chen
| 36
| 9
| 3
|-
| Ian Jackson
| 864
| 296
| 29
|-
| Igor Druzhinin
| 9
| 5
| 1
|-
| Jan Beulich
| 11008
| 4555
| 235
|-
| Jennifer Herbert
| 173
| 79
| 3
|-
| Joao Martins
| 10
| 3
| 1
|-
| Jonathan Davies
| 185
| 33
| 10
|-
| Joshua Otto
| 1
| 1
| 1
|-
| Juergen Gross
| 9785
| 8375
| 81
|-
| Julien Grall
| 666
| 407
| 47
|-
| Jun Sun
| 0
| 2
| 1
|-
| keios
| 5
| 5
| 1
|-
| Kevin Tian
| 0
| 1
| 1
|-
| Konrad Rzeszutek Wilk
| 188
| 109
| 8
|-
| Luca Miccio
| 2
| 1
| 1
|-
| Luwei Kang
| 47
| 8
| 3
|-
| Lv Zheng
| 126
| 0
| 1
|-
| Marek Marczykowski-Górecki
| 169
| 137
| 8
|-
| Mohit Gambhir
| 9
| 3
| 2
|-
| Norbert Manthey
| 3
| 3
| 2
|-
| Olaf Hering
| 1568
| 1
| 8
|-
| Oleksandr Andrushchenko
| 2098
| 27
| 4
|-
| Oleksandr Tyshchenko
| 28
| 26
| 3
|-
| Paul Durrant
| 3952
| 2186
| 31
|-
| Paul Lai
| 47
| 47
| 1
|-
| Peng Fan
| 22
| 11
| 1
|-
| Peter Große
| 3
| 3
| 2
|-
| Piotr Luc
| 1
| 0
| 1
|-
| Praveen Kumar
| 12
| 9
| 3
|-
| Punit Agrawal
| 7
| 5
| 1
|-
| Quan Xu
| 53
| 14
| 3
|-
| Razvan Cojocaru
| 451
| 153
| 7
|-
| Robin Lee
| 6
| 6
| 1
|-
| Roger Pau Monne
| 2980
| 1928
| 67
|-
| Ronald Rojas
| 1283
| 4
| 10
|-
| Ross Lagerwall
| 286
| 214
| 12
|-
| Sameer Goel
| 1
| 9
| 1
|-
| Sander Eikelenboom
| 1
| 1
| 1
|-
| Seraphime Kirkovski
| 2
| 2
| 2
|-
| Sergey Dyasli
| 377
| 54
| 13
|-
| Stefano Stabellini
| 2292
| 108
| 26
|-
| Suravee Suthikulpanit
| 207
| 133
| 3
|-
| Tamas K Lengyel
| 1278
| 974
| 5
|-
| Thomas Sanders
| 344
| 54
| 8
|-
| Tim Deegan
| 3
| 1
| 1
|-
| Venu Busireddy
| 23
| 2
| 2
|-
| Vijaya Kumar K
| 69
| 7
| 2
|-
| Vitaly Kuznetsov
| 41
| 17
| 3
|-
| Wei Chen
| 570
| 125
| 22
|-
| Wei Liu
| 16352
| 13506
| 139
|-
| Xiong Zhang
| 33
| 18
| 1
|-
| Yu Zhang
| 260
| 58
| 4
|-
| Zhang Chen
| 690
| 64
| 16
|-
| Zhongze Liu
| 49
| 10
| 2
|}
<br>

== 4.9 Hypervisor Related Code Contributions <sup>[ 3 ]</sup> ==

=== 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}} 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}}
!style="min-width: 110px;"|Changesets {{Sortable}}
|-
| Andrew Cooper
| 2425
| 1131
| 50
|-
| Géza Gémes
| 427
| 29
| 16
|-
| Ian Jackson
| 1952
| 470
| 150
|-
| Jan Beulich
| 120
| 15
| 4
|-
| Mohit Gambhir
| 12
| 0
| 1
|-
| Paul Durrant
| 2
| 0
| 1
|-
| Ross Lagerwall
| 82
| 1
| 2
|-
| Simon Waterman
| 1
| 28
| 1
|-
| Stefano Stabellini
| 84
| 15
| 4
|-
| Wei Liu
| 41
| 5
| 4
|}
<br>

== Code Contributions to Xen Related Drivers and Devices in Linux, NetBSD, FreeBSD <sup>[ 4 ]</sup> ==

=== Breakdown by Individual ===

{{InfoLeft|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}} 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}}
!style="min-width: 110px;"|Changesets {{Sortable}}
|-
| Andreas Kinzler
| 14
| 3
| 1
|-
| Andrii Anisov
| 34
| 0
| 1
|-
| Ankur Arora
| 27
| 9
| 2
|-
| Anoob Soman
| 1
| 1
| 1
|-
| Anthony Xu
| 22
| 82
| 3
|-
| asomers
| 31
| 35
| 2
|-
| avg
| 2
| 2
| 2
|-
| Bart Van Assche
| 1
| 1
| 1
|-
| Ben Chalmers
| 1
| 0
| 1
|-
| Bhumika Goyal
| 3
| 3
| 1
|-
| Boris Ostrovsky
| 287
| 39
| 7
|-
| bouyer
| 235
| 102
| 5
|-
| cem
| 3
| 3
| 1
|-
| cherry
| 43
| 10
| 2
|-
| Christoph Hellwig
| 27
| 13
| 3
|-
| chs
| 4
| 15
| 1
|-
| cognet
| 1
| 1
| 1
|-
| Colin Ian King
| 3
| 8
| 2
|-
| cperciva
| 11
| 0
| 2
|-
| Dan Streetman
| 7
| 16
| 1
|-
| Daniel P. Berrange
| 22
| 3
| 3
|-
| Dave Jiang
| 2
| 2
| 1
|-
| David S. Miller
| 0
| 0
| 7
|-
| David Vrabel
| 2
| 0
| 1
|-
| dim
| 2
| 2
| 1
|-
| Dmitry Torokhov
| 0
| 0
| 1
|-
| Eduardo Habkost
| 11
| 9
| 3
|-
| Elena Reshetova
| 6
| 5
| 1
|-
| Eric Biggers
| 3
| 3
| 2
|-
| Eric Blake
| 14
| 11
| 3
|-
| Eric Dumazet
| 3
| 3
| 1
|-
| Geert Uytterhoeven
| 2
| 2
| 1
|-
| Geliang Tang
| 3
| 3
| 2
|-
| glebius
| 1
| 2
| 2
|-
| Greg Kurz
| 1
| 5
| 1
|-
| Gustavo A. R. Silva
| 5
| 3
| 1
|-
| Hu Ziji
| 1495
| 6
| 5
|-
| Igor Druzhinin
| 45
| 22
| 3
|-
| imp
| 1
| 0
| 1
|-
| Ingo Molnar
| 4
| 1
| 6
|-
| Jan Beulich
| 18
| 10
| 4
|-
| Jan Kara
| 1
| 1
| 1
|-
| Jens Axboe
| 0
| 0
| 4
|-
| Jiandi An
| 5
| 3
| 1
|-
| Jisheng Zhang
| 2
| 19
| 1
|-
| Joe Perches
| 14
| 33
| 2
|-
| Juergen Gross
| 947
| 736
| 14
|-
| Julia Lawall
| 0
| 2
| 1
|-
| Julien Grall
| 23
| 0
| 2
|-
| kamil
| 20
| 26
| 3
|-
| kevlo
| 0
| 4
| 1
|-
| Konrad Rzeszutek Wilk
| 6
| 2
| 2
|-
| kre
| 2
| 3
| 1
|-
| Linus Torvalds
| 0
| 0
| 35
|-
| Marc Olson
| 3
| 0
| 1
|-
| Marc Zyngier
| 431
| 0
| 1
|-
| Marc-Andre Lureau
| 5
| 5
| 2
|-
| Mart van Santen
| 8
| 8
| 1
|-
| Masahiro Yamada
| 1
| 1
| 1
|-
| Masanari Iida
| 0
| 1
| 1
|-
| maxv
| 209
| 336
| 13
|-
| Michal Hocko
| 1
| 13
| 1
|-
| mlelstv
| 5
| 5
| 1
|-
| msaitoh
| 3
| 3
| 1
|-
| nonaka
| 29
| 17
| 2
|-
| Oleksandr Andrushchenko
| 2078
| 27
| 4
|-
| Owen Smith
| 3268
| 3932
| 10
|-
| ozaki-r
| 4
| 12
| 1
|-
| Pan Bian
| 7
| 4
| 2
|-
| Paolo Bonzini
| 3
| 0
| 1
|-
| Parav Pandit
| 4
| 4
| 1
|-
| Paul Durrant
| 10490
| 10816
| 89
|-
| Peter Maydell
| 0
| 0
| 2
|-
| Philippe Reynes
| 65
| 58
| 1
|-
| Ross Lagerwall
| 13
| 22
| 2
|-
| royger
| 183
| 107
| 10
|-
| Shyam Saini
| 1
| 2
| 1
|-
| skrll
| 3
| 4
| 1
|-
| Stefano Stabellini
| 1271
| 31
| 18
|-
| Stephen Hemminger
| 6
| 10
| 1
|-
| Thomas Gleixner
| 1
| 2
| 2
|-
| Vineeth Remanan Pillai
| 12
| 4
| 2
|-
| Vitaly Kuznetsov
| 36
| 13
| 4
|-
| Wei Yongjun
| 1
| 4
| 1
|}
<br>

== 4.9 Hypervisor Reviewers <sup> [ 5 ] </sup> ==
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.

{|class="zebra sortable"
!style="min-width: 200px;"|Name {{Sortable}}
!style="min-width: 110px;"|Review Comments {{Sortable}}
|-
| 119 others (less than 10 review comments each)
| 345
|-
| Alistair Francis
| 14
|-
| Andre Przywara
| 71
|-
| Andrew Cooper
| 792
|-
| Andy Lutomirski
| 11
|-
| Anthony Perard
| 13
|-
| Bhupinder Thakur
| 22
|-
| Boris Ostrovsky
| 286
|-
| Cedric Bosdonnat
| 11
|-
| Chao Gao
| 41
|-
| Dan Streetman
| 10
|-
| Daniel De Graaf
| 16
|-
| Daniel Kiper
| 100
|-
| Dario Faggioli
| 69
|-
| Doug Goldstein
| 82
|-
| Elena Reshetova
| 13
|-
| Fu Wei
| 10
|-
| George Dunlap
| 144
|-
| Géza Gémes
| 10
|-
| Greg Kurz
| 24
|-
| Grek KH
| 17
|-
| Haozhong Zhang
| 46
|-
| Ian Jackson
| 225
|-
| Jacob Shin
| 13
|-
| Jan Beulich
| 1634
|-
| Juergen Gross
| 222
|-
| Julien Grall
| 534
|-
| Kevin Tian
| 133
|-
| Konrad Wilk
| 179
|-
| Luis R. Rodriguez
| 74
|-
| Luwei Kang
| 11
|-
| Olaf Hering
| 14
|-
| Oleksandr Andrushchenko
| 64
|-
| Oleksandr Grytsov
| 11
|-
| Oleksandr Tyshchenko
| 24
|-
| Paul Durrant
| 172
|-
| Peter Zijlstra
| 14
|-
| Praveen Kumar
| 19
|-
| Quan Xu
| 24
|-
| Razvan Cojocaru
| 66
|-
| Roger Pau Monné
| 167
|-
| Ronald Rojas
| 21
|-
| Ross Lagerwall
| 11
|-
| Sergey Dyasli
| 17
|-
| Shanker Donthineni
| 11
|-
| Stefano Stabellini
| 628
|-
| Suravee Suthikulpanit
| 26
|-
| Tamas Lengyel
| 60
|-
| Thomas Garnier
| 28
|-
| Tim Deegan
| 68
|-
| Vijay Kilari
| 10
|-
| Waiman Long
| 13
|-
| Wei Liu
| 532
|-
| Yi Y Sun
| 119
|-
| Yu Zhang
| 51
|-
| Zhang Chen
| 18
|-
| Zhongze Liu
| 14
|}
<br>

== Footnotes ==
<span id="Foot1"><sup>[ 1 ]</sup> Includes the following repos: ''xen'', ''mini-os'', ''osstest'', ''raisin'', ''livepatch-build-tools'', ''xtf'' </span><br>
<span id="Foot2"><sup>[ 2 ]</sup> Includes the following repos: ''xen''</span><br>
<span id="Foot3"><sup>[ 3 ]</sup> Includes the following repos: ''mini-os'', ''osstest'', ''raisin'', ''livepatch-build-tools'', ''xtf'' </span><br>
<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'']
</span><br>
<span id="Foot5"><sup>[ 5 ]</sup> This data was extracted from the [https://xen.biterg.io Xen Project Code Review Dashboard]</span><br>
<span id="Foot6"><sup>[ 6 ]</sup> These are the days/months during which we were not in code freeze</span><br>
<span id="Foot7"><sup>[ 7 ]</sup> Calculated using 4.9.0-rc9</span>. 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.<br>
<span id="Foot8"><sup>[ 8 ]</sup> Only known employers are used. Unknown employers were discounted. Note that in [https://wiki.xenproject.org/wiki/Xen_Project_4.8_Acknowledgements] that clean-up did not happen</span><br>

[[Category:Xen]]
[[Category:Xen 4.9]]

Latest revision as of 16:31, 26 June 2017

Note that the acknowledgements have been created based on 4.9.0-rc9, which is expected to be the final RC for Xen 4.9.0 (with the exception of some security fixes under embargo). 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 161 days
124 dev window/days [ 6 ]
5.3 months 		203 days [ 7 ]
128 dev window/days [ 6 ]
6.3 months
Development Velocity
Changesets 1245 1549 (+19.6%) 1316 233 285
Series (=Features) [ 5 ] 575 481 (-19.5%)
Average Size of Feature 2.17 3.22 (+32.6%)
Changes / Day 7.7 7.6 (-0.9%)
Changes / Dev Day [ 6 ] 10.0 12.1 (+17.4%)
Features / Day [ 5 ] 3.6 2.4 (-51.9%)
Code Review Statistics
Review Comments [ 5 ] 6960 8349 (+16.6%)
Review Comments / Day [ 5 ] 43.6 41.1 (-6.0%)
Review Comments / Dev Day [ 6 ] 56.1 65.2 (+13.9%)
Comments / Series [ 5 ] 11.9 17.4 (+31.4%)
Code Churn
Lines Added 78899 82336 (+4.2%) 77190 5146 21558
Lines Removed 62325 47014 (-67.8%) 45320 1694 16705
Engagement
Individuals 68 85 (+20.9%) 83 10 79
Employers [ 8 ] 25 29 (+16.7%) 28 6 25


4.9 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
Adrian Pop 291 2 1
Al Stone 20 2 1
Alistair Francis 7 7 5
Andre Przywara 1809 26 11
Andrew Cooper 8219 7907 258
Andrii Anisov 1 0 1
Andy Lutomirski 7 5 1
Andy Shevchenko 39 0 1
Anshul Makkar 14 2 2
Anthony PERARD 17 2 4
Armando Vega 773 707 2
Artem Mygaiev 2 2 2
Bhavesh Davda 1 3 1
Bhupinder Thakur 66 16 2
Boris Ostrovsky 238 114 14
Cedric Bosdonnat 2094 1574 49
Chao Gao 167 80 9
Charles Arnold 1 1 1
Cristian-Bogdan Sirb 4 1 1
Daniel Kiper 1634 579 14
Dario Faggioli 1847 631 34
David Woodhouse 17 9 1
Doug Goldstein 14 40 4
Edgar E. Iglesias 5 41 5
Elena Ufimtseva 294 59 3
Eric DeVolder 85 15 7
Fatih Acar 21 13 2
Feng Wu 194 143 6
George Dunlap 170 73 9
Haozhong Zhang 464 345 24
He Chen 36 9 3
Ian Jackson 864 296 29
Igor Druzhinin 9 5 1
Jan Beulich 11008 4555 235
Jennifer Herbert 173 79 3
Joao Martins 10 3 1
Jonathan Davies 185 33 10
Joshua Otto 1 1 1
Juergen Gross 9785 8375 81
Julien Grall 666 407 47
Jun Sun 0 2 1
keios 5 5 1
Kevin Tian 0 1 1
Konrad Rzeszutek Wilk 188 109 8
Luca Miccio 2 1 1
Luwei Kang 47 8 3
Lv Zheng 126 0 1
Marek Marczykowski-Górecki 169 137 8
Mohit Gambhir 9 3 2
Norbert Manthey 3 3 2
Olaf Hering 1568 1 8
Oleksandr Andrushchenko 2098 27 4
Oleksandr Tyshchenko 28 26 3
Paul Durrant 3952 2186 31
Paul Lai 47 47 1
Peng Fan 22 11 1
Peter Große 3 3 2
Piotr Luc 1 0 1
Praveen Kumar 12 9 3
Punit Agrawal 7 5 1
Quan Xu 53 14 3
Razvan Cojocaru 451 153 7
Robin Lee 6 6 1
Roger Pau Monne 2980 1928 67
Ronald Rojas 1283 4 10
Ross Lagerwall 286 214 12
Sameer Goel 1 9 1
Sander Eikelenboom 1 1 1
Seraphime Kirkovski 2 2 2
Sergey Dyasli 377 54 13
Stefano Stabellini 2292 108 26
Suravee Suthikulpanit 207 133 3
Tamas K Lengyel 1278 974 5
Thomas Sanders 344 54 8
Tim Deegan 3 1 1
Venu Busireddy 23 2 2
Vijaya Kumar K 69 7 2
Vitaly Kuznetsov 41 17 3
Wei Chen 570 125 22
Wei Liu 16352 13506 139
Xiong Zhang 33 18 1
Yu Zhang 260 58 4
Zhang Chen 690 64 16
Zhongze Liu 49 10 2


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
Andrew Cooper 2425 1131 50
Géza Gémes 427 29 16
Ian Jackson 1952 470 150
Jan Beulich 120 15 4
Mohit Gambhir 12 0 1
Paul Durrant 2 0 1
Ross Lagerwall 82 1 2
Simon Waterman 1 28 1
Stefano Stabellini 84 15 4
Wei Liu 41 5 4


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
Andreas Kinzler 14 3 1
Andrii Anisov 34 0 1
Ankur Arora 27 9 2
Anoob Soman 1 1 1
Anthony Xu 22 82 3
asomers 31 35 2
avg 2 2 2
Bart Van Assche 1 1 1
Ben Chalmers 1 0 1
Bhumika Goyal 3 3 1
Boris Ostrovsky 287 39 7
bouyer 235 102 5
cem 3 3 1
cherry 43 10 2
Christoph Hellwig 27 13 3
chs 4 15 1
cognet 1 1 1
Colin Ian King 3 8 2
cperciva 11 0 2
Dan Streetman 7 16 1
Daniel P. Berrange 22 3 3
Dave Jiang 2 2 1
David S. Miller 0 0 7
David Vrabel 2 0 1
dim 2 2 1
Dmitry Torokhov 0 0 1
Eduardo Habkost 11 9 3
Elena Reshetova 6 5 1
Eric Biggers 3 3 2
Eric Blake 14 11 3
Eric Dumazet 3 3 1
Geert Uytterhoeven 2 2 1
Geliang Tang 3 3 2
glebius 1 2 2
Greg Kurz 1 5 1
Gustavo A. R. Silva 5 3 1
Hu Ziji 1495 6 5
Igor Druzhinin 45 22 3
imp 1 0 1
Ingo Molnar 4 1 6
Jan Beulich 18 10 4
Jan Kara 1 1 1
Jens Axboe 0 0 4
Jiandi An 5 3 1
Jisheng Zhang 2 19 1
Joe Perches 14 33 2
Juergen Gross 947 736 14
Julia Lawall 0 2 1
Julien Grall 23 0 2
kamil 20 26 3
kevlo 0 4 1
Konrad Rzeszutek Wilk 6 2 2
kre 2 3 1
Linus Torvalds 0 0 35
Marc Olson 3 0 1
Marc Zyngier 431 0 1
Marc-Andre Lureau 5 5 2
Mart van Santen 8 8 1
Masahiro Yamada 1 1 1
Masanari Iida 0 1 1
maxv 209 336 13
Michal Hocko 1 13 1
mlelstv 5 5 1
msaitoh 3 3 1
nonaka 29 17 2
Oleksandr Andrushchenko 2078 27 4
Owen Smith 3268 3932 10
ozaki-r 4 12 1
Pan Bian 7 4 2
Paolo Bonzini 3 0 1
Parav Pandit 4 4 1
Paul Durrant 10490 10816 89
Peter Maydell 0 0 2
Philippe Reynes 65 58 1
Ross Lagerwall 13 22 2
royger 183 107 10
Shyam Saini 1 2 1
skrll 3 4 1
Stefano Stabellini 1271 31 18
Stephen Hemminger 6 10 1
Thomas Gleixner 1 2 2
Vineeth Remanan Pillai 12 4 2
Vitaly Kuznetsov 36 13 4
Wei Yongjun 1 4 1


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
119 others (less than 10 review comments each) 345
Alistair Francis 14
Andre Przywara 71
Andrew Cooper 792
Andy Lutomirski 11
Anthony Perard 13
Bhupinder Thakur 22
Boris Ostrovsky 286
Cedric Bosdonnat 11
Chao Gao 41
Dan Streetman 10
Daniel De Graaf 16
Daniel Kiper 100
Dario Faggioli 69
Doug Goldstein 82
Elena Reshetova 13
Fu Wei 10
George Dunlap 144
Géza Gémes 10
Greg Kurz 24
Grek KH 17
Haozhong Zhang 46
Ian Jackson 225
Jacob Shin 13
Jan Beulich 1634
Juergen Gross 222
Julien Grall 534
Kevin Tian 133
Konrad Wilk 179
Luis R. Rodriguez 74
Luwei Kang 11
Olaf Hering 14
Oleksandr Andrushchenko 64
Oleksandr Grytsov 11
Oleksandr Tyshchenko 24
Paul Durrant 172
Peter Zijlstra 14
Praveen Kumar 19
Quan Xu 24
Razvan Cojocaru 66
Roger Pau Monné 167
Ronald Rojas 21
Ross Lagerwall 11
Sergey Dyasli 17
Shanker Donthineni 11
Stefano Stabellini 628
Suravee Suthikulpanit 26
Tamas Lengyel 60
Thomas Garnier 28
Tim Deegan 68
Vijay Kilari 10
Waiman Long 13
Wei Liu 532
Yi Y Sun 119
Yu Zhang 51
Zhang Chen 18
Zhongze Liu 14


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-rc9. 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

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