A framework is provided for automatic inference of memory fences in concurrent programs. A method is provided for generating a set of ordering constraints that prevent executions of a program violating a specification. One or more incoming avoidable…
From: http://preshing.com/20120710/memory-barriers-are-like-source-control-operations/ If you use source control, you’re on your way towards understanding memory ordering, an important consideration when writing lock-free code in C, C++ and other l…
Linux has supported a large number of SMP systems based on a variety of CPUs since the 2.0 kernel. Linux has done an excellent job of abstracting away differences among these CPUs, even in kernel code. One important difference is how CPUs allow memor…
What is a memory model, anyway? In multiprocessorsystems, processors generally have one or more layers of memory cache, whichimproves performance both by speeding access to data (because the data iscloser to the processor) and reducing traffic on the…
What is RCU, Fundamentally? https://lwn.net/Articles/262464/ If you can fill the unforgiving secondwith sixty minutes worth of distance run,“Highly scalable” your code will be reckoned,And—which is more—you'll have parallel fun! With apologies to Rud…
Welcome back to what’s going to be the last “official” part of this series – I’ll do more GPU-related posts in the future, but this series is long enough already. We’ve been touring all the regular parts of the graphics pipeline, down to different le…
