interesting tidbit about overheating

Mechanical engineers are involved in the design of boards too! How? When boards are heated everything tends to expand and guess what, the expansion factor is not the same for the comments, the traces, etc. Multiple layer boards are designed so that things melt at different temperatures -- guess

How do you calculate?

Hi, Sammy is wondering (for years) how unix/linux users do simple calculations. Many people write their own calculator language - in the tradition of hoc. Anyone who actually enters in the code for hoc will discover something quite interesting. Other people use languages like Nickle

vfork

fork vs. vfork The issue is this:  the orginal paradigm was fork and exec -- someone, a long time, ago, realized that if  the child does an exec to overlay the copied process, then a fork would be quicker if the parent process wasn't copied into the child process -- vfork. Today, this is

software engineering project

HI, As a former professor teaching software engineering, I was bit surprised by your posting -- perhaps I misunderstood your intent. Although software engineering in the large is more about process than code that's not always the case. For example, software systems benefit from code

CFS

Hi, Since the early 1970's we've known how to adjust the priority of a process based on a variety of factors. Unix (not linux) uses the well-known multi-level feedback queue -- you can read about it here: http://en.wikipedia.org/wiki/Multilevel_feedback_queue To make a long story short ---

Please benchmark this

Hi, I didn't look at your code, but I bet you use a spin lock somehwere. If you do, you can never expect to have improved preformance behind three processors. I can probably help you, but it would be better offline. Thanks Shlomo ___ Linux-il