After a “find” operation spanning the entire disk, I suddenly had System Monitor (2.28.0 of Fedora 12) telling me that 11.5 GB out of the existing 16 GB were used up, and the applet said 75% was “in use by programs”. Really. Virtually nothing was running on the system. Just to be sure, I tried [...]
Copying gigabytes of disk can get the system sluggish. On Linux, the solution is so simple. If process 18898 happens to take control of your disk, just go: ionice -c 3 -p 18898 And you have your computer back. “-c 3″ means class 3, which is idle class. In other words, take the disk when [...]
A short note about installing libraries on an Intel 64 bit machine (Fedora 12 in my case). It all starts with a short conversation like this one: [root@short Downloads]# rpm -i VirtualBox-3.1-3.1.2_56127_fedora12-1.x86_64.rpm error: Failed dependencies: libQtGui.so.4()(64bit) is needed by VirtualBox-3.1-3.1.2_56127_fedora12-1.x86_64 libQtOpenGL.so.4()(64bit) is needed by VirtualBox-3.1-3.1.2_56127_fedora12-1.x86_64 THE WRONG THING TO DO IS: [root@short Downloads]# [...]
The whole story began when I decided to be kind enough to tell the Xilinx tools (ISE 9.2 in my case) that the Virtex-4 I’m targeting is a grown-up. Stepping 2, to be precise. I added CONFIG STEPPING = “2″; to the UCF file. It must have been one of those moments where I believed [...]
I know it’s stupid, but there’s something cool about very long uptimes. I think it begins when the uptime reaches 100 days: You think twice before rebooting your Linux machine: Is it really necessary? The truth is that without really paying attention to it, my Linux box approached 500 days. I noticed that, because I [...]