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   comp.misc      General topics about computers not cover      21,759 messages   

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   Message 21,151 of 21,759   
   Scott Dorsey to ldo@nz.invalid   
   Re: Inside an IBM z17   
   03 May 25 19:45:36   
   
   From: kludge@panix.com   
      
   Lawrence D'Oliveiro   wrote:   
   >On Sat, 03 May 2025 13:51:35 -0400, Dan Espen wrote:   
   >   
   >> Try connecting thousands of users to a single linux box.  You'll soon   
   >> see the utility of block mode terminals.   
   >   
   >A client of mine just got a machine with 40-something CPU cores (each   
   >multithreaded), and something close to a terabyte of RAM. And a couple   
   >dozen hot-swap slots for multi-terabyte hard drives.   
   >   
   >Of course we’re going to run Linux. I don’t think we’ll have trouble   
   >handling thousands of users on that ...   
      
   Depends what you're doing.  The more cores you put on one memory buss, the   
   more memory contention gets to be an issue.  The more data has to be shared   
   by processes, the more that bandwidth gets to be an issue too.  So for   
   simple web service stuff where each web server process is completely   
   independent and there isn't a central database everyone has to refer to,   
   that kind of architecture can be great.  But make all those web servers   
   refer to a central Oracle database and watch everything slow to a crawl.   
   --scott   
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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