On Ubuntu 12.04 LTS, I installed VirtualBox (last version) where I am running Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
I noticed a significant difference in terms of performance: mainly, the speed. All the tasks I run on Ubuntu 12.04 are faster. I want to do most of my daily work on Ubuntu 14.04 but every task seem slower. I tried them on Vmware Player but the difference is still the same. Why this difference ?
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4You sound like you made some measurements; why not include the results here? How do the virtual machines compare? Which install options did you choose, how did you configure the systems? – Run CMD Jul 28 '14 at 07:50
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According to more rigorous benchmarks, there are variations in performance comparing 14.04 to 12.04. In some benchmarks, 12.04 is faster than 14.04. In others, the opposite is true. I will list the test, and the faster ubuntu version:
http://www.phoronix.com/scan.php?item=ubuntu_1404_desktop&page=article
QGears2
Rendering: XRender Extension - Test: Text
14.04
QGears2
Rendering: XRender Extension - Test: Gears
14.04
Rendering: XRender Extension - Test: Image Scaling
14.04
OpenArena v0.8.8
Resolution: 1920 x 1080
12.04
Unvanquished v0.26.0
Resolution: 1280 x 1024 - Effects Quality: High
12.04
Unvanquished v0.26.0
Resolution: 1280 x 1024 - Effects Quality: Ultra
12.04
Unvanquished v0.26.0
Resolution: 1280 x 1024 - Effects Quality: Intermediate
14.04
Xonotic v0.7
Resolution: 1920 x 1080 - Effects Quality: Low
12.04
Xonotic v0.7
Resolution: 1920 x 1080 - Effects Quality: High
14.04
Xonotic v0.7
Resolution: 1920 x 1080 - Effects Quality: Ultra
14.04
Xonotic v0.7
Resolution: 1920 x 1080 - Effects Quality: Ultimate
Same
GtkPerf v0.40
GTK Widget: GtkComboBox
Same
GtkPerf v0.40
GTK Widget: GtkCheckButton
12.04
GtkPerf v0.40
GTK Widget: GtkRadioButton
12.04
GtkPerf v0.40
GTK Widget: GtkToggleButton
14.04
C-Ray v1.1
14.04
LAME MP3 Encoding v3.99.3
WAV To MP3
Same
FFmpeg v2.1.1
H.264 HD To NTSC DV
Same
Anon
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