home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   comp.arch      Apparently more than just beeps & boops      131,241 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 130,682 of 131,241   
   EricP to Michael S   
   Re: Variable-length instructions   
   30 Dec 25 10:44:10   
   
   From: ThatWouldBeTelling@thevillage.com   
      
   Michael S wrote:   
   > On Tue, 30 Dec 2025 08:30:08 -0000 (UTC)   
   > Thomas Koenig  wrote:   
   >   
   >> MitchAlsup  schrieb:   
   >>   
   >>> My 66000 does not have a TSO memory system, but when one of these   
   >>> things shows up, it goes sequential consistency, and when it is done   
   >>> it flips back to causal consistency.   
   >>>   
   >>> TSO is cycle-wasteful.   
   >> This has been experimentally verified for Apple Silicon:   
   >>   
   >> https://www.sra.uni-hannover.de/Publications/2024/wrenger_24_jsa.pdf   
   >>   
   >   
   > WOW, they wrote article of 7 pages without even one time mentioning   
   > avoidance of RFO (read for ownership) which is an elephant in the room   
   > of discussion of advantages of Arm MOM/MCM over TSO.   
      
   What is this "avoidance of RFO"?   
   I can find no mention of it anywhere.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca