https://www.theverge.com/2018/1/6/16857878/meltdown-cpu-performance-issues-epic-games-fortnite

As the technology industry continues to react to two major CPU bugs, we’re starting to see early signs of performance issues from security patches designed to fix the problems. Epic Games has released a chart of CPU usage after it patched its back-end services to address the Meltdown vulnerability. It shows a roughly 20 percent increase in CPU utilization, immediately after the patches were applied. The company released the chart to “provide a bit more context” around recent login issues and stability with its Fortnite game.

“All of our cloud services are affected by updates required to mitigate the Meltdown vulnerability,” says an Epic Games spokesperson in a forum post. “We heavily rely on cloud services to run our back-end and we may experience further service issues due to ongoing updates.” Epic Games warns that issues may continue next week as the company works with cloud providers to address the issues and prevent further problems arising.