Difference between revisions of "Xen Project 4.10 Acknowledgements"

From Xen
(Overview)
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|'''Release Cycle'''
 
|'''Release Cycle'''
 
|203 days<br>128 dev window/days <sup>[ 6 ] </sup><br>6.3 months
 
|203 days<br>128 dev window/days <sup>[ 6 ] </sup><br>6.3 months
|style="color: blue;"|'''163 days <sup>[ 7 ]</sup><br>111 dev window/days <sup>[ 6 ]</sup><br>5.4 months'''
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|style="color: blue;"|'''174 days <sup>[ 7 ]</sup><br>111 dev window/days <sup>[ 6 ]</sup><br>5.9 months'''
 
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|'''Series (=Features)''' <sup>[ 5 ]</sup>
 
|'''Series (=Features)''' <sup>[ 5 ]</sup>
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|'''Changes / Day'''
 
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|style="color: blue;"|'''7.2''' <span style="color:red">(-6.2%)</span>
 
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|'''Changes / Dev Day''' <sup>[ 6 ]</sup>
 
|'''Changes / Dev Day''' <sup>[ 6 ]</sup>
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|style="color: blue;"|'''10.7''' <span style="color:green">(+TBD%)</span>
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|'''Features / Day''' <sup>[ 5 ]</sup>  
 
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|'''Review Comments''' <sup>[ 5 ]</sup>  
 
|'''Review Comments''' <sup>[ 5 ]</sup>  
 
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|'''Review Comments / Day''' <sup>[ 5 ]</sup>  
 
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|'''Review Comments / Dev Day''' <sup>[ 6 ]</sup>
 
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|'''Comments / Series''' <sup>[ 5 ]</sup>  
 
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|'''Individuals'''
 
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|'''Employers''' <sup>[ 8 ]</sup>
 
|'''Employers''' <sup>[ 8 ]</sup>
 
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Revision as of 12:58, 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
174 days [ 7 ]
111 dev window/days [ 6 ]
5.9 months
Development Velocity
Changesets 1549 1250 1143 107 164
Series (=Features) [ 5 ] 807 525
Average Size of Feature 3.2 2.4
Changes / Day 7.6 7.2 (-6.2%)
Changes / Dev Day [ 6 ] 12.1 11.2 (-7.5%)
Features / Day [ 5 ] 4.0 3.0
Code Review Statistics
Review Comments [ 5 ] 8349 6527
Review Comments / Day [ 5 ] 41.1 37.8 (-8.9%)
Review Comments / Dev Day [ 6 ] 65.2 59.2 (-10.2%)
Comments / Series [ 5 ] 17.4 12.5 (-38.7%)
Code Churn
Lines Added 82336 68199 (-20.7%) 44135 24064 8577
Lines Removed 47014 25777 (-82.4%) 23965 1812 6602
Engagement
Individuals 85 80 (-7.5%)
Employers [ 8 ] 29 31 (+6.5%)


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