3 ms·
>>> 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 behin
by user5994461 9y ago
>>> 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.
- dragontamer 9y agoHeh. Have you seen the Phoronix benchmarks? https://www.phoronix.com/scan.php?page=news_item&px=KPTI-Retpoline-Combined-Ubuntu 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.
- lostmsu 9y agoCompile time slowdown looks pretty sad too. -21% is quite bad.
- TheSleeprAwakns 9y agoIs there any idea when this will be fixed in hardware?