gahahahhahahaha 'Kernel memory leaking' Intel processor design flaw forces Linux, Windows redesign • The Register
Major security flaw/bug in the processor architecture going back to almost the P2 era (estimation: [MENTION=11805]UzEE[/MENTION]) and the fix will cause slowdowns of up to ~25% in some cases. AMD not affected.
"Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however, we're looking at a ballpark figure of five to 30 percent slow down, depending on the task and the processor model. More recent Intel chips have features – such as PCID – to reduce the performance hit. Your mileage may vary."
"PostgreSQL SELECT 1 with the KPTI workaround for Intel CPU vulnerability heads up: Fix for intel hardware bug will lead to performance
regressions …
Best case: 17% slowdown
Worst case: 23%"
Major security flaw/bug in the processor architecture going back to almost the P2 era (estimation: [MENTION=11805]UzEE[/MENTION]) and the fix will cause slowdowns of up to ~25% in some cases. AMD not affected.
"Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however, we're looking at a ballpark figure of five to 30 percent slow down, depending on the task and the processor model. More recent Intel chips have features – such as PCID – to reduce the performance hit. Your mileage may vary."
"PostgreSQL SELECT 1 with the KPTI workaround for Intel CPU vulnerability heads up: Fix for intel hardware bug will lead to performance
regressions …
Best case: 17% slowdown
Worst case: 23%"
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