One complaint about the Nexus 7 is, without a doubt, the fact that the device is getting slower as time goes by, I can say that, since I have the 1st generation of Google tablet a few months ago. The good news is that with In the Android update to 4.3, Google has implemented a command that can prevent the slowdown of the Nexus 7 operating system.. So owners of the first Big G tablet are well-off with this!
According to Android AuthorityThe reasons Nexus 7 presents this problem are related to the low level of the software, specifically by the way information is written to the tablet flash memory. While the data blocks that make up the storage were empty (when the new tablet), data recording was fast and the operating system ran smoothly. With the storage space full, the operating system keeps looking for free data blocks to use, this goes very well until all used blocks are full, so the operating system has to delete blocks before writing them and this causes The tablet is slow, almost dramatic.
The solution the operating system periodically issue a command TRIM, which checks each block of data that is no longer in use and clears it. This way, when data needs to be written to flash storage, empty blocks will be available.
It turns out that TRIM doesn't work on Nexus 7 running Android 4.2, which explains why many users have had performance issues. However, Nexus 7 running Android 4.3 supports this command. Therefore, besides Nexus 7 (2013) will not present this problem, and Nexus 7 (2012) should work better after upgrading to Android 4.3.
According to Brian Klug of AnandTech, Android 4.3 will run the "fstrim" command on a daily basis, ensuring that this space-clearing is constantly being performed on the Nexus 7. How the command will run under certain circumstances – when the device is idle, with the screen off and the battery higher than 70% – Once your device is updated, it will take some time for you to notice the difference in tablet performance.
Although Google brings the improvement now, there were already solutions available to issue the TRIM command on rooted devices like Nexus 7, such as LagFix.
. (tagsToTranslate) Android 4.3 (t) nexus 7 (2012) (t) slowness (t) bug fix