UC Berkeley, University of Helsinki sniff out troublesome iPhone, Android apps via Carat Researchers from the United States and Finland have launched free iOS and Android smartphone/tablet software that singles out which apps take the biggest toll on your device batteries and also visualizes fragmentation of Apple and Android mobile OSes. The NODES research group at the University of Helsinki’s Department of Computer Science has joined forced with the University of California at Berkeley to deliver the Carat app (download here for iOS and Android) and has published live stats based on some 2 terabytes of data extracted from Carat, which has been downloaded by about 750,000 users who employ more than 300,000 apps. I’m now among those downloaders, on my iPhone 5, but haven’t had it installed long enough yet to get my personal “Hog Report” or “Bug Report.” The app will take measurements of app energy use on my device every so often and mix that data in with that of the hundreds of thousands of other users’ data. Carat project According to the current stats, 2% of iOS apps and 12% of Android apps are deemed energy hogs, and about half the devices run at least one app with “an anomalously high level of power consumption.” An Android app dubbed Superuser, if turned off, can save you 203 minutes on your battery, according to Carat. One called Advanced Task Killer chews up 148 minutes of battery life during a battery’s normal stretch, according to the app. The general Maps app, as you might imagine, also does a number on the processor and battery. The researchers finger inefficient code or programming errors as well as compatibility issues between OSes and apps for the energy-draining nature of some apps. As for the fragmentation numbers, Apple’s exclusive ownership of iOS naturally makes for a less varied user based than Android and its many phone/tablet/phablet vendors. The iPhone 5 leads the way with 47% of the share in this survey of iOS users, while the Samsung Galaxy S2 is tops among Android devices with a 17% share. University of Helsinki This chart displays how users are distributed between platforms, operating system versions and device models. Related content feature 5 ways to boost server efficiency Right-sizing workloads, upgrading to newer servers, and managing power consumption can help enterprises reach their data center sustainability goals. By Maria Korolov Dec 04, 2023 9 mins Green IT Servers Data Center news Omdia: AI boosts server spending but unit sales still plunge A rush to build AI capacity using expensive coprocessors is jacking up the prices of servers, says research firm Omdia. By Andy Patrizio Dec 04, 2023 4 mins CPUs and Processors Generative AI Data Center feature What is Ethernet? History, evolution and roadmap The Ethernet protocol connects LANs, WANs, Internet, cloud, IoT devices, Wi-Fi systems into one seamless global communications network. By John Breeden Dec 04, 2023 11 mins Networking news IBM unveils Heron quantum processor and new modular quantum computer IBM also shared its 10-year quantum computing roadmap, which prioritizes improvements in gate operations and error-correction capabilities. By Michael Cooney Dec 04, 2023 5 mins CPUs and Processors High-Performance Computing Data Center Podcasts Videos Resources Events NEWSLETTERS Newsletter Promo Module Test Description for newsletter promo module. Please enter a valid email address Subscribe