Friday Hacks #108, March 4th

Posted on by Varun

For our fourth Friday Hacks of the semester, we’re having Cheng Wei, a senior expert software engineer from Garena Labs to talk about their file store engine in GoLang.

Facebook Event link:

Date/Time: Friday, March 4th at 6:30pm
Venue: Seminar Room 3, Town Plaza, University Town
Free pizza is served before the talks.

File Store Engine in Go — how to reduce GC overhead


In Garena, we store hundreds of TB of files and serve more than ten thousand file download requests per second. This huge workload requires an efficient file store engine. We chose BeansDB in the beginning, but find it not appropriate when used in the high speed cache system. Finally, we decide to rewrite it in Go language. Although Go is much simpler and more a pleasure to write compared with C, it also introduces a new problem, the GC issue. In this talk, we will go deep in this topic and share the best practices we learnt in reducing GC overhead. Meanwhile, we also show that the Go GC system is still continuous evolving thanks to the effort of Go dev team.

Speaker’s Profile

Cheng Wei obtained his PhD degree from School of Computing, NUS on 2010, and then joined Garena and involved in various of projects there. Since 2013, he worked as server team leader of BeeTalk, a social app having tens of millions of active users. He likes learning new programming languages and is also keen on profiling and optimizing the performance of server programs.

Supported by:

NUS Enterprise

The HANGAR by NUS Enterprise — the campus hub for entrepreneurs.

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