Microsoft says security fixes will noticeably slow older PCs

Re:Microsoft says security fixes will noticeably slow older PCs by user5994461 on Wednesday January 10, 2018 @01:31AM (#16112946)

>>> If you're using a 4th-generation Core or older CPU, however, you'll see "more significant slowdowns,"

With server CPUs always being a few generations behind the desktop, this is gonna have massive impact on datacenters.

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Re:Microsoft says security fixes will noticeably slow older PCs by dragontamer on Wednesday January 10, 2018 @10:38AM (#16115675)

Heh. Have you seen the Phoronix benchmarks?

https://www.phoronix.com/scan.php?page=news_item&px=KPTI-Ret...

E3-1280 v5 goes from 32278.00 Apache requests per second to 25399.47 Requests per second. In other words, a Skylake Xeon performs like an Fx Bulldozer after the patch. And Skylake has the PCID instruction too.

Although to be fair, static-file hosting is about as I/O bound as it gets, and these patches affect file I/O the most.

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Re:Microsoft says security fixes will noticeably slow older PCs by lostmsu on Thursday January 11, 2018 @05:30PM (#16128677)

Compile time slowdown looks pretty sad too. -21% is quite bad.

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Re:Microsoft says security fixes will noticeably slow older PCs by TheSleeprAwakns on Thursday January 11, 2018 @11:46PM (#16130464)

Is there any idea when this will be fixed in hardware?

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