Last year I did some experiments with the Theora video decoder on a Texas Instruments DM642 DSP. A royalty free video decoder is very attractive for embedded devices, but after some major restructuring for performance, some problems remained.
The main problem is that, unlike MPEG video, Theora video is not packed in the bitstream in the raster [...]
After several years of use, the server for my development machines developed a problem. If I rebooted the machine without an internet connection, it would pause for several minutes while starting the NFS service.
The Linux NFS server keeps track of status in several files. Whenever a client mounts a filesystem, the server records this in /var/lib/nfs/rmtab. [...]
The Tsi106 (formerly MPC106) and Tsi107 (formerly MPC107) PowerPC host bridges both contain a data cache. This note describes why it may be necessary to mark memory as SMP coherent even in a single processor system using these bridges.
Continue reading MPC107/Tsi107 Cache Coherency
