Logging has been a common practice for monitoring and diagnosing performance issues.
However, logging comes at a cost, especially for large-scale online service systems. First …

Web browsing is a key application on mobile devices. However, mobile browsers are largely
optimized for performance, imposing a significant burden on power-hungry mobile devices …

GitHub is the largest collaborative source code hosting site built on top of the Git version
control system. The availability of a comprehensive API has made GitHub a target for many …

Different battery chemistries perform better on different axes, such as energy density, cost,
peak power, recharge time, longevity, and efficiency. Mobile system designers are …

Mobile System-on-Chips (SoC) that incorporate heterogeneous coherence domains
promise high energy efficiency to a wide range of mobile applications, yet are difficult to …

The smartphone has become an important part of our daily lives. However, the user
experience is still far from being optimal. In particular, despite the rapid hardware upgrades …

Size and weight constraints on wearables limit their battery capacity and restrict them from
providing rich functionality. The need for durable and secure storage for personal data …

Energy-efficiency is a key concern in continuously-running mobile applications, such as
those for health and context monitoring. Unfortunately, developers must implement complex …

Background activities on mobile devices can cause significant battery drain with little
visibility or recourse to the user. They can range from useful but sometimes overly …

With the rapid proliferation of smartphones, hundreds of millions of mobile users are
attracted to Instant Messaging (IM) apps. While such apps have brought convenience to our …