Home/ Questions/Q 7755433
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-01T12:34:04+00:00

When Android 4.0 became available for Nexus S back in December 2011, we did

  • 0

When Android 4.0 became available for Nexus S back in December 2011, we did some performance testing:
http://greendao-orm.com/2011/12/17/sql-performance-in-android-4-0/
enter image description here

Surprisingly, UPDATE and INSERT performance dropped by half (!) after the Update to Android 4.0 on the same phone. We did not have time to investigate further, but maybe meanwhile somebody else did?

One could speculate, that the file system changed, etc. but I’m looking for hard facts. 😉

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    According to this blog post by Sony, the difference seems to be caused by the SQLite Android API:

    Another change in ICS compared to Gingerbread is that Google has moved
    a lot of the SQL handling from the native to the Java layer. In our
    internal studies, we have seen that read and write operations to the
    SQL database takes longer time…

    I’d like to see a follow up investigation to dive deeper into this issue, e.g. comparing sources. Also, it’s odd that Sony claims that read performance is slower, while our measurements showed a ~40% performance improvement.

    • 0