Lately we want to understand the cpu utilization of an Android app we wrote. We tried a few things like android-ndk-profiler and easy-performance-analyzer but they did not provide a very detailed results in terms of system calls. They are easy to use but don't tell the details we want to see. Valgrind is a very powerful profiling tool in… Continue reading Using Valgrind and Callgrind on Android
Month: July 2015
Download videos (and popup comments) from bilibili.com
Just found a nice website that analyzes the video path and so we could download the videos that are on bilibili.com! As of today when I post this, the webpage ibilibili.com is still alive. 06/05/2017: Something to note. Member-only videos (non public videos) cannot be downloaded right now. Keyword test: 다운로드, 下载, 下載, ダウンロード, descargar, скачать, ดาวน์โหลด
AT&T's 4G LTE on GoPhone
For the experiments, I went to AT&T and got a GoPhone card that carries the 5GB data plan. For those who didn't want to read the rest of the story, just let you know: you won't get true LTE by doing that. Ok, here is the thing. I brought the Galaxy S3 and Note that… Continue reading AT&T's 4G LTE on GoPhone