Thanks, Tomas — any pointers to where I might find such an revised, amended version?
Cheers! -- Boyan Penkov www.boyanpenkov.com > On Oct 25, 2019, at 03:22, to...@tuxteam.de wrote: > > On Fri, Oct 25, 2019 at 02:11:58AM +0200, deloptes wrote: >> Boyan Penkov wrote: >> >>> Ulrich Drepper's piece on on-chip memory architectures is a fantastic >>> read, and I recently had the chance to revisit it -- >>> https://people.freebsd.org/~lstewart/articles/cpumemory.pdf >>> >>> I am writing to ask more knowledgeable folks if the last 13 years have >>> seen sufficient changes that render parts of this out of date or >>> misleading on 2019 hardware. >> >> 114 pages! Really :) I am not an expert but let me ask you a question - did >> something change in the past 13y regarding memory in context of >> programming? I think no. Only "developers" became dumber. > > Processors have (again) changed a bit: the gap between processor > speed and memory has widened a tad, there are more cores on a > package (putting even more pressure on the memory bottleneck). > > Compilers have become smarter (and more insidious, depending on > your problem at hand) [1] to try to keep that illusion of Moore's > "law" upright. > > So yes, an update on Ulrich Drepper's paper would be welcome. > > A good read, btw. > > Cheers > [1] https://lwn.net/Articles/799218/ > -- tomás
