A few minor mods to Pitop OS.

Some time ago I wrote up a minor project I'd done, rigging up Raspberry Pi OS to run on a Pi-Top. And then never revisited the post.

I think you can guess why. It didn't go very well.

Even though all of the secret sauce software is available in the Raspberry Pi OS package repositories these days and there is a process for installing it, for whatever reason they don't quite work right. The speakers were never detected, nor was even the system hub detected. Finally, my tinkering wrecked the desktop configuration entirely. After some frustrated debugging, I kicked it …

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Cryptsetup benchmarks for a Dell 17r.

For no good reason today I decided to run some cryptsetup benchmarks on Windbringer. The only really significant change to the systemware configuration is that Windbringer is now running Linux kernel version 3.9.4-1-ARCH.

[drwho@windbringer ~]$ cryptsetup benchmark
# Tests are approximate using memory only (no storage IO).
PBKDF2-sha1       407688 iterations per second
PBKDF2-sha256     222155 iterations per second
PBKDF2-sha512     144511 iterations per second
PBKDF2-ripemd160  334367 iterations per second
PBKDF2-whirlpool  187245 iterations per second
#  Algorithm | Key |  Encryption |  Decryption
     aes-cbc   128b   563.0 MiB/s  1862.0 MiB/s
 serpent-cbc   128b    67.7 MiB/s   281.0 MiB/s
 twofish-cbc   128b   158 …
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Title restored - so how did I spent my weekend, anyway?

Unfortunately, I spent much of last Friday asleep, recovering after a routine filling went south and turned into an emergency root canal. I don't know what does it about the procedure, but it wipes me out completely - it might be the body reacting to having a part of it removed with what amounts to tiny drill bits, or it might be the knowledge of it. For all I know, it could be the aftereffects of multiple injections of local anesthetic that happens to contain epinephrine, which would logically bring about a fight-or-flight reaction as the syringe-loads naturally leaked into the …

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