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World Community Grid Forums
Category: Community
Forum: Hardware Chat Room
Thread: [INTEL] Upcoming Permanant Processor Slowdown?! |
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Thread Status: Active Total posts in this thread: 53
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QuantumEthos
Senior Cruncher Joined: Jul 2, 2011 Post Count: 336 Status: Offline Project Badges: 
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http://bit.ly/VMBug the meltdownattack #bug mitigation update
----------------------------------------VM and Microprocessor bug fixes incoming.. Hopefully microcode quickly also. Creating a better virtualization header that is: More efficient at isolating the contained OS with attributes in the OS's to contain secured data? We find answers to improve efficiency and protect against VM>VM data transfer or to use this for a creative purpose! We need answers! and science. : Microcode update "Thank you for googles firm responses to the bug, faith in google is high.. The micro code be updated to flush & or contain the the speculative data in a data-cycle secure storage, Within the framework of cache and ram/virtual-ram? Cycle efficiency would be at most two cycles and a flush Xor bit data overlay" Google systems have been updated for Meltdown bug https://security.googleblog.com/2018/01/today...bility-what-you-need.html Attack mitigation - https://support.google.com/faqs/answer/7622138#android "Microsoft issued an emergency update today, Amazon said it protected AWS customers running Amazon's tailored Linux version and will roll out the MSFT patch, for other customers to day" We need answers! and science. : Microcode : update (c)RS [Edit 1 times, last edit by QuantumEthos at Jan 4, 2018 4:20:51 PM] |
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KerSamson
Master Cruncher Switzerland Joined: Jan 29, 2007 Post Count: 1684 Status: Offline Project Badges: 
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@QuantumEthos
----------------------------------------We need answers! and science. : Microcode update Please stop to repeat the same invocation! Based on several sources, this design problem is so deeply embedded into the processor architecture, that it is outside of the possibility of a microcode update: it is hard wired ! Yves |
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QuantumEthos
Senior Cruncher Joined: Jul 2, 2011 Post Count: 336 Status: Offline Project Badges:
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mmonnin
Advanced Cruncher Joined: Jul 20, 2016 Post Count: 148 Status: Offline Project Badges: 
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Overhyped. Carry on.
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l_mckeon
Senior Cruncher Joined: Oct 20, 2007 Post Count: 439 Status: Offline Project Badges: 
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Unless you're running WCG on virtual machines it looks like a bit of a non-event.
Speed tests before and after patch on Windows 10, with assorted desktop programs. https://www.techspot.com/article/1554-meltdown-flaw-cpu-performance-windows/ |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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Unless you're running WCG on virtual machines it looks like a bit of a non-event. Speed tests before and after patch on Windows 10, with assorted desktop programs. https://www.techspot.com/article/1554-meltdown-flaw-cpu-performance-windows/ So basically, we roared for elephant...& a mouse came!  |
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QuantumEthos
Senior Cruncher Joined: Jul 2, 2011 Post Count: 336 Status: Offline Project Badges:
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no, the bug is complex when it comes to OS, because it depends whether the app is using vm or in vm eg device guard.
the code could be updated to flush & or contain the the speculative data in a data-cycle secure storage, Within the framework of cache and ram/virtual-ram? Cycle efficiency would be at most two cycles and a flush Xor bit data overlay" Bit Masking before and after prefetch presents & also uses data - this methode would be fast! Rupert S |
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mmonnin
Advanced Cruncher Joined: Jul 20, 2016 Post Count: 148 Status: Offline Project Badges:
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Biggest impact is to Intel data center servers. Depending on the usage the performance loss varies.
----------------------------------------https://www.anandtech.com/show/12214/understanding-meltdown-and-spectre |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges:
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Well, it's NOT ONLY Intel, but also all computers, including ALL phones CPUs. Just checked Apple for news here:
----------------------------------------https://support.apple.com/en-us/HT208394 & upgraded my iPhones.  |
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QuantumEthos
Senior Cruncher Joined: Jul 2, 2011 Post Count: 336 Status: Offline Project Badges:
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only the hard to exploit bugs are other than intel/arm
----------------------------------------[Edit 1 times, last edit by QuantumEthos at Jan 6, 2018 4:18:52 PM] |
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