Cloud Mercato tested CPU performance using a range of encryption speed tests:
Cloud Mercato's tested the I/O performance of this instance using a 100GB General Purpose SSD. Below are the results:
I/O rate testing is conducted with local and block storages attached to the instance. Cloud Mercato uses the well-known open-source tool FIO. To express IOPS the following parametersare used: 4K block, random access, no filesystem (except for write access with root volume and avoidance of cache and buffer.
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We went live with R6g (Redis) and R6gd/T4g (ES) instances at the beginning of the month. We were coming from an ancient cluster from AWS managed ES (2.3) and using their i3 elasticsearch instances so it’s been an Apples to Oranges comparison.

RDS is ridiculously overpriced, I just cut my bill from $1,000 to $50 per month by switching back to EC2 for my database server.

For our stack written in C and Rust, any performance penalty isn't noticeable. It's basically a NAT gateway filtering by hostnames for TLS & SSH outbound.

I am not sure how to put in some intelligence into my terraform scripts, so that I get to choose only the instance type which is available for an AMI

We went live with R6g (Redis) and R6gd/T4g (ES) instances at the beginning of the month. We were coming from an ancient cluster from AWS managed ES (2.3) and using their i3 elasticsearch instances so it’s been an Apples to Oranges comparison.

The r6g Arm vCPUs we tried in our AWS Neptune performance testing always seemed to perform worse than the equivalent-in-price r5d.4xlarge we normally use.

The r6g Arm vCPUs we tried in our AWS Neptune performance testing always seemed to perform worse than the equivalent-in-price r5d.4xlarge we normally use.

The r6g Arm vCPUs we tried in our AWS Neptune performance testing always seemed to perform worse than the equivalent-in-price r5d.4xlarge we normally use.

Another advantage of the Graviton processors is 50% more dedicated storage compared to equivalent Intel/AMD instances. To get enough storage we would have had to bump up to r5d/r5ad.24x or metal which when testing we also saw more “jitters” in latency on the long tail.

The per vCPU performance is horrid in comparison to any of the modern instances (R5/M5/C5) let alone comparing those vCPUs to the actual CPU of R6g/M6g/C6g like you said.

We’ve been testing a few Graviton instances since before GA and have gone “all in” with our latest release targeted for EOY. We went live with R6g (Redis) and R6gd/T4g (ES) instances at the beginning of the month.