Performance Nexus 6 and 9 to 80% lower because encryption – Computer Today

It seems that rarely an added benefit to an operating system with the best intentions in the world has caused many difficulties and problems in this case where users Nexus Nexus 6 and 9 observed a loss of yield important without knowing why.

Lollipop Android 5.0 introduced the encryption memory (also known as Full Disk Encryption or FDE) enabled by default, and for the first time, for all its users. A measure that came to be protective and to add an extra layer of security is doing that users get 80% less performance of internta device memory, regarding the unencrypted version.

AnandTech rushed to perform some tests because they were among the first to access the Nexus 6 when it went on sale in the Google Play, and extracted interesting conclusions of its technical tests that were subjected to the terminals.

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If you look at the first of the graphs that show the outlook is bleak. In this first we can see that a Nexus 6 with encryption enabled sheds figures of 6.18 MB / s at random read, while the same Nexus 6 without encryption does at a rate of 16.64 Mb / s.

Going further, A Google Nexus 5 with Android 5.0 Lollipop offers a bit more than twice the speed of reading the Nexus 6 : 12.66 MB / s. This is explained by that terminals which are updated from an earlier version to Android 5.0 can disable encryption , so its performance is not at all bitter.

Random Testing reading Nexus 6

Another graphs, the following shows us that a Nexus 6 with encryption enabled offers in random write rate of 1.41 MB / s, while the Nexus 6 without encryption offers more than twice as fast. 2.85 MB / s

Tests random write Nexus 6

Finally, a third graph allows us to observe how the r erformance in sequential read experienced a reduction of 80% from the 131.65 MB / s of Nexus 6 without encryption to 25.36 MB / s of the same Nexus encryption.

Testing reading sequence in the Nexus 6

The XDA developer community is already working pair to find a solution and you can disable encryption. In fact, he might have found, but it is not yet officially confirmed.