- Apr 21, 2016
- 4,385
While both Microsoft and Intel confirmed that their Meltdown and Spectre updates cause a more or less noticeable slowdown on devices, Google says no performance impact is being experienced following its own security patches.
Google says it started patching the three variants of the discovered vulnerabilities in September when the first mitigations for Variants 1 and 3 were released (Variants 1 and Variant 2 are generally referred to as Spectre, while Variant 3 is called Meltdown).
“Thanks to extensive performance tuning work, these protections caused no perceptible impact in our cloud and required no customer downtime in part due to Google Cloud Platform’s Live Migration technology. No GCP customer or internal team has reported any performance degradation,” Google says.
Variant 2 was the hardest to patch, and Google said that the first mitigation it considered would have caused a substantial performance impact because it all came down to disabling the vulnerable CPU features. Early implementations of this workaround in closed environments led to “considerable” slowdowns for many applications and inconsistent performance.
“Rolling out these mitigations would have negatively impacted many customers,” Google explains.
Read more: Google: Our Meltdown and Spectre Patches Don’t Slow Down Devices
Google says it started patching the three variants of the discovered vulnerabilities in September when the first mitigations for Variants 1 and 3 were released (Variants 1 and Variant 2 are generally referred to as Spectre, while Variant 3 is called Meltdown).
“Thanks to extensive performance tuning work, these protections caused no perceptible impact in our cloud and required no customer downtime in part due to Google Cloud Platform’s Live Migration technology. No GCP customer or internal team has reported any performance degradation,” Google says.
Variant 2 was the hardest to patch, and Google said that the first mitigation it considered would have caused a substantial performance impact because it all came down to disabling the vulnerable CPU features. Early implementations of this workaround in closed environments led to “considerable” slowdowns for many applications and inconsistent performance.
“Rolling out these mitigations would have negatively impacted many customers,” Google explains.
Read more: Google: Our Meltdown and Spectre Patches Don’t Slow Down Devices