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New Windows AMIs Changing Performance
07-13-2018, 03:26 AM (This post was last modified: 07-13-2018 03:30 AM by MachMetrics.)
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New Windows AMIs Changing Performance
Hey Pat -

We noticed a pretty significant performance change (some urls 2x slower, a few urls a little faster) when we updated to the latest version, and I was able to trace it back to using the "New Windows AMIs", from this commit: https://github.com/WPO-Foundation/webpag...b08eaf18b5

Can you elaborate a little more on how these new AMI's are different? I know the previous AMIs were 2 over years old, but they also updated themselves upon startup (using autoscaling), so I didn't anticipate a big difference.

If it helps, here's a result on old AMI, and here's one on new AMI - it appears the CPU is working much harder with the latest stuff (using c4.large in both cases)

(I did see the thread about Chrome changing in mid-2018, and I'm assuming this is what's going on here? Just wanted to double check that significant performance change is expected as well)

Thanks so much for your time.
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New Windows AMIs Changing Performance - MachMetrics - 07-13-2018 03:26 AM

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