Xen Project 4.11 Acknowledgements

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The data is based on staging, snapshot June 18, 2018.


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 4.10 with Xen 4.11. 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 4.11 Hypervisor Total.

Attribute 4.10 Hypervisor Total [ 1 ] 4.11 Hypervisor Total [ 1 ] 4.11 Hypervisor Core [ 2 ] 4.11 Hypervisor Other [ 3 ] Drivers and Devices (other projects) [ 4 ]
Release Cycle 174 days
111 dev window/days [ 6 ]
5.9 months
201 days
129 dev window/days [ 6 ]
6.8 months
Development Velocity
Changesets 1250 1793 (+30.3%) TODO TODO TODO
Series (=Features) [ 5 ] 525 676
Average Size of Feature 2.3 2.7
Changes / Day 7.2 8.9 (+19.5%)
Changes / Dev Day [ 6 ] 11.2 12.9 (+12.7%)
Features / Day [ 5 ] 3.0 3.4
Code Review Statistics
Review Comments [ 5 ] 6527 4525
Review Comments / Day [ 5 ] 37.8 22.5 (-67.8%)
Review Comments / Dev Day [ 6 ] 59.2 32.6 (-81.9%)
Comments / Series [ 5 ] 12.5 6.7 (-87.0%%)
Code Churn
Lines Added 68199 65300 TODO TODO TODO
Lines Removed 25777 21560 TODO TODO TODO
Engagement
Individuals 80 TODO (TODO%)
Employers [ 7 ] 31 TODO (TODO%)


4.11 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

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


4.11 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 ] Only known employers are used. Unknown employers were discounted.