Comments on: Messylaneous for 2009/12/30

By: Hasso

Hasso — Mon, 04 Jan 2010 09:10:17 +0000

There is no storage support for DragonFly in the HAL, so no, “mounting fixed disks in KDE” doesn’t work on DragonFly.

By: Lazarus

Lazarus — Fri, 01 Jan 2010 05:23:21 +0000

From what I’ve read, pcc does more type checking by default, but isn’t yet at the stage where it tries to aggressively optimize anything. Also from what I’ve read, gcc is just a slow/convoluted beast that tries to do whatever optimizations it can/is told to do.

By: Justin

Justin — Thu, 31 Dec 2009 15:23:31 +0000

Wow, that’s a big time difference! Is gcc really that slow, or does pcc skip over something that gcc does exhaustively, I wonder?

By: Anonymous

Anonymous — Thu, 31 Dec 2009 12:19:08 +0000

Using a kernel compiled with pcc right now, it just rocks.

Compile time:
pcc : 1m15.781s
gcc : 3m17.274s

Performance:
I did not make any bench, but it feels as responsive as before.

By: Anonymous

Anonymous — Thu, 31 Dec 2009 04:20:37 +0000

Downloadable lo-res and high-res versions of BK’s video can be found at http://video.ias.edu/PiTP2009-Kernighan