Linux Systems Running Newer Kernels Not Really Affected by Meltdown Patches
Renowned Linux kernel maintainer Greg Kroah-Hartman shared today some interesting details on the performance impact of the Meltdown and Spectre patches on the Linux kernel.
According to some recent benchmarks done by a user on some Linux systems running newer kernel versions on a particular network-heavy load, the recently released Linux 4.15 kernel appears to be between 7 and 9 percent faster than Linux kernel 4.11.
But if the new KPTI (Kernel Page-Table Isolation) patches that mitigate the recently discovered Meltdown security vulnerability are enabled on the Linux 4.15 kernel, then the performance is just 1 or 2 percent slower than on systems running Linux kernel 4.11.
“So, overall, we are right back where we started from. Which makes me feel good, the recent Meltdown changes turn out to not really be much of… (read more)