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A comment on GNU Assembler Patches For Optimizing The Intel Jump Conditional Code Erratum.

Re:GNU Assembler Patches For Optimizing The Intel Jump Condi... by lousken on Thursday November 14, 2019 @09:10AM (#21535440)
Intel is becoming a meme with those 30-50 page erratas in their documents. When they can't improve IPC or nm tech why don't they at least focus on fixing bugs?
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Re:GNU Assembler Patches For Optimizing The Intel Jump Condi... by raxxorrax on Thursday November 14, 2019 @09:30AM (#21535595)
Well, if they fix this bug the hardware will become slower in any case. Honestly I don't understand the issue and wonder why it didn't manifest constantly.

> unpredictable behavior could happen when jump instructions cross cache lines

Under which kind of circumstances? What does it mean anyway? The jump-instruction itself with arguments crossing cache lines? Wouldn't that happen quite often?

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