Containers like LXC are becoming a popular solution to program isolation. Compared to virtual machines (VM), containers tend to have less resource overhead and higher performance, which makes it interesting to explore how much benefit we can get from deploying virtual network functions (VNF) with containers instead of VMs. Therefore, we conducted an experiment in which we compared performance and resource usage of Suricata, a popular multi-threaded IDS program, in bare metal, Docker container, and virtual machine setups, and in different load levels and resource allocation configurations.Continue reading
onedrived is a client program for Microsoft OneDrive on Linux platform.
It enables you to sync local directories with remote OneDrive repositories
(a.k.a., “Drive”) of one or more OneDrive Personal account (OneDrive for
Business accounts are not yet supported).
The program is written in Python3, and uses official OneDrive Python SDK to communicate with OneDrive server, Keyring to securely store account credentials, and Linux inotify API to monitor file system changes.Continue reading
For very long time I have been creating RAM disk and pointing temp and cache dirs there to improve I/O performance and reduce unnecessary SSD writes. Since Windows 8, changing the cache location of IE (a.k.a. “Temporary Internet Files”) to a RAM disk could result in crashes of Metro (a.k.a. “Modern”) apps, which I didn’t figure out why until recently. The problem is also observable in Windows 10.Continue reading
Australis has been incorporated to release channel since Firefox 29, replacing title bar with tabs bar. One thing to be picky about is that there is a margin above tabs and it wastes vertical space.Continue reading
So far my assignment grading system uses a legacy (and buggy) library written by some former TA to check memory leakage of student programs. Now that it’s time for a major OS upgrade (Ubuntu 14.04), this solution exposed more bugs. Time to retire it and make my own ones.Continue reading