MùPùF.org

Before reinstalling all the operating systems of my laptop, I was wondering if Btrfs would be a good fit for my unstable/development OS.

I wouldn't have cared that much about the fs if my lappy's hdd wasn't slow as hell. I wondered if the built-in compression support of Btrfs could help me get a little more performance out of it. Also, as I tend to deal with loads and loads of ridiculously small files, the fact that Btrfs stores them in the extent of the directory inode should lower the seeking time.

Before reinstalling everything based on the assumption that Btrfs would actually be faster, I wanted to see some benchmarks on simple tasks like extracting, compiling a kernel and removing files. So far, I haven't been able to find benchmarks for a recent kernel (read, at least linux 2.6.36) except the one from phoronix which doesn't tell you how much CPU is being used and doesn't test the compress mount option.

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Well this is a really short bookmark article. You'll be warned.

Would you like to get rid of some setuid on your binaries ? Well, Linux 2.2 introduced capacities to get rid of them. Linux Journal's Making-root-unprivileged is an attempt to have a setuid free Linux distribution, have fun !

If you're using Spencer's GRSecurity, you can use the GRSecurity Capability Names and Descriptions.

If you're not using GRSecurity, I'll soon send the capabilities currently available.

Another simpler article about this subject has been made by brain0, using-posix-capabilities-in-linux-part-one and using-posix-capabilities-in-linux-part-two.