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My team saw a 40% CPU usage increase on all of our EC2 instances and even our RDS instances. We were shocked since the media was downplaying the performance im
by mrep 9y ago
My team saw a 40% CPU usage increase on all of our EC2 instances and even our RDS instances. We were shocked since the media was downplaying the performance impact.
I tried to start a poll but it seems as though my team was just the unlucky one: https://news.ycombinator.com/item?id=16109036 https://news.ycombinator.com/item?id=16109036
- plasma 9y agoAre your ec2 instances PV? They are known to suffer perf issues more than the other type which you can switch to. Not sure about RDS
- schak 9y agoHi, How are you trying to measure the performance impact? Are you checking the cloudwatch data or running any specific test? I am interested to assess the baseline statistics (unpatched so far) and after patching. Any suggestions?
- mrep 9y agomy teams usage is pretty even so the cloudwatch graph is pretty obvious: https://m.imgur.com/a/khGxU https://m.imgur.com/a/khGxU
- tomsmeding 9y agoThat is the clearest graph ever to show the degradation in performance. How do you get your usage so flat?
- javitury 9y ago> 40% CPU usage increase When I read this I thought how weird. It is usually claimed that max performance drop is around 30%. Then I remembered that we are talking in ratios, so a 30% drop in performance(0.7) means a 42% increase in CPU usage(1/0.7=1.42).
- sorenbs 9y agoDo you have premium support with AWS? Maybe try opening a ticket.