[ revised version of an older post] “Soft real-time” is a perfect example of the “soft design” noted in an earlier post. There are perfectly
Read moreSparc T2 (niagra 2)
UT architecture seminar today was by Greg Grohoski from Sun – an updated version of his Hot Chips talk. I’m not a big fan of
Read moreOpenBSD developer notes king’s clothing is “virtual”
Theo de Raadt explains why virtualization does not improve security. How about this: to improve security, you have to have a secure design, a marketing
Read moreDistributed shared memory from first principles
[Update 10/16] What is the fundamental performance limiting factor that has dominated that last 30 years of computer architecture? The obvious answer is the disparity
Read moremore on missed wakeup
Here are some conventions [Update: typos fix, Friday] We are concerned with state machines and sequences of events. The prefixes of a sequence include the
Read moreOSIM Madrid and Value Manifolds
Spent a couple of very interesting days at the OSIM conference in Madrid as part of my consulting for WindRiver which has a very powerful
Read moreApple’s strategic brilliance
I may be reading too much into it, but Apple looks to have come up with a strategy to pass Microsoft in the next ten
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Carbon neutral processors and ecocidal operating systems
Data centers are reckless consumers of power. Since modern processors leak somewhere in the neighborhood of 40% of their peak power consumption even when idle
Read moreUnderlying requirement for hard real-time
Simple point that is widely ignored: you need hard real-time capability to offer any meaningful “soft” real-time. Let’s suppose you say that you can drop
Read moreuniversal machinery
If even 20% of what Peter Gutman says is so, then I’ve been optimistic in my assessement of DRM.
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