adapting linux for mobile platforms: an empirical study of android
Post on 25-Jun-2015
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1,058 bug fixes 5
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Metric Description
Similarity
Compares source code lines
Adaptation Change Ratio Measures the amount of changes performed to adapt Linux functionalities
Density of Merging Commits Captures the effort spent on merging source code modifications from Linux
Impact of Merging Commits Proportion of files updated to solve conflicts caused by a merging commit
Impact Range of Merging Number of modules affected by a merging commit
84% 85% 86%
87%
79%
77%
70%
75%
80%
85%
90%
95%
100%
1.1 1.5 1.6 2.0 2.1 2.2
Sim
ilari
ty w
ith
Linu
x Ke
rnel
2.6
Android Version
7
96.3%
95.0%
96.0%
96.9%
94.3%
99.8%
90%
92%
94%
96%
98%
100%
1.1 1.5 1.6 2.0 2.1 2.2
Ada
ptat
ion
Chan
ge R
atio
Android Version
8
9
93.3%
6.7% 14% 86%
merges
5%
After a merge
modified
95%
Android’s kernel bugs
10
95%
5%
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