Information Technology Reference
In-Depth Information
60
Fring
Tango
Skype
50
40
30
20
10
0
Wifi to Wifi
3G to Wifi
3G to 3G
Fig. 9.
Comparison of different video calls
ers we play music 10 minutes in each scenario for each application. For video
calls, we use same application at tow phones to communicate 10 minutes.
Issue 1.
TheresultofTraStisshowninFigure6789.Itissurprisedtoseethat
there exists such large difference among applications of same kind. For example,
the UC browser's tra
c consumption is nearly one-tenth of other browsers'!
For the map application, Baidu Map's tra
c consumption is relatively small,
while Sogou Map's is relatively big. And Duomi Music is the most trac saving
among the three online music players. Tango consumed the smallest trac than
the other two video call applications in most scenarios.
Issue 2.
If we make more in-depth analysis on trac consumption, we could
get the reason of why the gap is so big.
For browsers, because the UC browser didn't load any image when visited qq
and youku. This could avoid a lot of unnecessary trac consumption. Moreover,
UC browser has done some optimizations in request mechanism to save uploading
trac.
For maps, different applications have different map source, many location de-
tails and information storage means are not the same. Google Map will only
show the main building in the fast scenario. Sogou Map will update buffer au-
tomatically.
For online music players, Doumi Music will select smooth version in 3G net-
work scenario to save trac, and high-quality version in Wifi scenario. It also
use buffer to save trac. While the other two application doesn't support these
features.
For video calls, although Tango is most tra
c saving, the video quality is not
good. It is saving tra
c on the expense of user experience.
