Finally! A Real Virtual Memory Chip

A big red letter X over a box marked MMUAt long last a chip has been embodied to simplify the use of virtual memory, a computing architecture that has been in use since the 1960s. The Memory Guy was given a sneak peek at this new approach by no other than Olly Mugwump, a highly-respected computer architect and longstanding member and fellow of several important technical societies.  The new design promises to accelerate memory accesses while Continue reading “Finally! A Real Virtual Memory Chip”

What is “Stranded Memory?”

Cartoon of a tiny island of sand with a single palm tree and a DIMM. "Help" is written in the sand.CXL has been embraced by hyperscale data center managers as a means of solving the problem of “Stranded Memory.”  If you don’t know what stranded memory is, then this post is intended to help you to understand.  It’s based on a few slides from a presentation that IEEE President Tom Coughlin and The Memory Guy made at the Storage Networking Industry Association (SNIA) CMS Summit in April 2023.  SNIA has posted a video of the entire Continue reading “What is “Stranded Memory?””

Objective Analysis 2024 Forecast Released

Close-Up of the COVID-19 Super Cycle and of 2023 from the chart below.Objective Analysis has just released its 2024 semiconductor forecast, and it seems fitting to mention it on The Memory Guy blog since memories are a key part of the semiconductor business’ cyclicality.  Let’s have a quick look at what’s in store.

Late 2023 is starting to show signs of another super cycle similar to those of Continue reading “Objective Analysis 2024 Forecast Released”

Two CXL Conundrums

 

Red square with white letters "CXL" interspersed with question marksWith all the interest in CXL lately it’s past time for The Memory Guy blog to weigh in on this new technology.  Although I plan to write a little tutorial soon, this post will start with the idea that the reader already has some knowledge of CXL and can appreciate the two conundrums I am about to discuss.

CXL’s magic is mainly that it can add memory to systems in a way that doesn’t bog down the Continue reading “Two CXL Conundrums”

Where Are We in the Memory Cycle?

My regular clients who get quarterly in-person market updates and those readers who have attended my annual Flash Market Update session at the Flash Memory Summit have often been told how Objective Analysis models the memory market based on supply/demand dynamics and the fact that memory chip prices tend to follow a very predictable pattern.  In this post The Memory Guy blog will explain that Continue reading “Where Are We in the Memory Cycle?”

Micron Closed Out of Some China Markets

Logos for both Micron and the Cybersecurity Administration of ChinaOn May 21 a government agency in China issued a ruling to prevent Micron Technology products from being used in systems that handle critical information.  This is the outcome of an investigation that the Cyberspace Administration of China (CAC) opened in March, accusing the company of cybersecurity crimes.

This Memory Guy blog post examines the impact of Continue reading “Micron Closed Out of Some China Markets”

Memory Market Down, but a Turnaround is Coming

[Post updated 14 Feb. with Kioxia data, a margin chart, and to correct an error.]

The quarterly results of most memory companies have been reported, and revenues, gigabyte shipments, and prices are all down.  Most of the profits have been taken out of the business.

This is not an unusual situation for Continue reading “Memory Market Down, but a Turnaround is Coming”

Introducing a RAM You Never Heard of – CRAM!

1961 photo of a man and a woman posing in front of a computer of that era.Before there was DRAM (1969, Bob Dennard) or SRAM (1963, Robert H. Norman) there was another little-known random-access memory from computer maker NCR that was known as CRAM.  The Memory Guy only recently learned of this technology thanks to a relative’s visit to the NCR Collection in the Dayton History Museum in Dayton, Ohio.

CRAM, a magnetic technology, was a vital part of the Continue reading “Introducing a RAM You Never Heard of – CRAM!”

Today’s “Unprecedented” Collapses

Old wood block print showing knights riding their steeds over a cliff.Starting with Micron’s most recent earnings call The Memory Guy has been hearing memory executives and others use the word “Unprecedented” to describe today’s market collapse.  Perhaps the strangest of these was an article in the Storage Newsletter that said that the current situation was “Unprecedented since 2008.”  Given that “Unprecedented” means that nothing like this has ever happened before, that’s a pretty strange thing to say.

Being a numbers guy, I decided to see just how Continue reading “Today’s “Unprecedented” Collapses”