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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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@blamb I believe the R* series of instance types generally have more memory (RAM) than the corresponding T* instance types. I'm not aware of any better "handling" of the memory.
I would assume that the recommendation to switch from T3 to R5 for network connectivity reasons is because a T3 instance has "up to 5Gbps" network performance, while an R5 server will have "up to 10Gbps" or more depending on the specific size you pick.
The r instance family is memory-optimized, which you might use for in-memory databases, real-time processing of unstructured big data, or Hadoop/Spark clusters.
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