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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the T series is more suitable for non-performance-verified test environments

the T series is more suitable for non-performance-verified test environments

The t3 family is a burstable instance type. If you have an application that needs to run with some basic CPU and memory usage, you can choose t3. It also works well if you have an application that gets used sometimes but not others.

General purpose workloads with moderate CPU, memory, and network utilization.Save 10% over T3 instance prices

Amazon T3a instances share similar features with T3 instances, except that they run on AMD EPYC 7000 series processors, clocked at 2.5 GHz (all core Turbo).

AWS re:Invent 2020: Reduce cost with Amazon EC2’s next-generation T4g and T3 instance types

I think the discrepancies can be attributed to the choice of the t-style instances. They are generally over committed.

Aren\'t \'t\' instances burst instances? They need to be under constant load for a long time before their burst credits for CPU, memory, network and EBS run out, after which they fall back on their baseline performance.

I think the discrepancies can be attributed to the choice of the t-style instances. They are generally over committed.

Aren\'t \'t\' instances burst instances? They need to be under constant load for a long time before their burst credits for CPU, memory, network and EBS run out, after which they fall back on their baseline performance.

Thank you for this article. We have T instances for EC2 and RDS and we are expecting some very strange performance behavior. Do you have plan to test RDS?

I used to have three build nodes all on t3a.mediumv in Ireland (euwest1). I had such problems with cycle stealing they I ended up switching to low end m5a instances and my problems disappeared.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

Thank you for this article. We have T instances for EC2 and RDS and we are expecting some very strange performance behavior. Do you have plan to test RDS?

I used to have three build nodes all on t3a.mediumv in Ireland (euwest1). I had such problems with cycle stealing they I ended up switching to low end m5a instances and my problems disappeared.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match. In general, it seems that the t3 instances running Intel CPUs are usually faster. You can also get a 10% discount on your EC2 computing bill:

I think the discrepancies can be attributed to the choice of the t-style instances. They are generally over committed.

Aren\'t \'t\' instances burst instances? They need to be under constant load for a long time before their burst credits for CPU, memory, network and EBS run out, after which they fall back on their baseline performance.

T3a instances have AMD EPYC 7000 series processors with an all-core turbo CPU clock speed of up to 2.5 GHz. T3a instances offer an additional 10% cost savings over T3 instances.

We cannot possibly know how these will perform for your workload. Rent both and test. Optimize according to your requirements: cost, performance, whatever.

For T3 and T3a instance types Unlimited mode is turned on by default. This is excellent, as we remove the risk of a production outage, but gain the risk of increased costs.

t3a.xlarge instance: with 4 vCPUs, I had much more CPU capacity and did not hit 100% CPU. I was using about 30 CPU credits per hour above the baseline, so I ended up with...

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

Thank you for this article. We have T instances for EC2 and RDS and we are expecting some very strange performance behavior. Do you have plan to test RDS?

I used to have three build nodes all on t3a.mediumv in Ireland (euwest1). I had such problems with cycle stealing they I ended up switching to low end m5a instances and my problems disappeared.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

t3a instances run on AMD EPYC CPUs, depending on your workload (threads, spikes, etc.), you will probably have similar performance if the right pieces match.

You can count t2 as upgrade of t1. In general t2 offer faster access to memory and disk compared to t1.