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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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Just did a quick test. It booted up in about 11s vs around 19s for Xen. I did notice that it took a while for the status check to go green though. There was a warning message saying that it couldn't connect to the instance. I was able to SSH just fine though.
I'm currently working on comprehending my EC2 billing but have come across some inconsistencies in the process. I have been calculating the exact amount of hours one of my on demand instances ran the two past months using the instance's Cloud Trail events. Unfortunately, the monthly values I get differ from 1 hour with the value indicated in AWS billing.
The c5 instance type has a high ratio of compute/CPU versus memory. If you have a compute-intensive application — maybe scientific modelling, intensive machine learning, or multiplayer gaming — these instances are a good choice.
My machine is indeed in Ireland, which in Summer is UTC+1, as you pointed out. I now realize that if the first and last day of the month are taken +1 hour, the numbers add up correctly. Having the event times in UTC+0 confused me.
Your figures are based on the month ending at exactly midnight UTC on the first day of the month, which is also when AWS says the billing cycle starts and ends But it seems the total number of hours that AWS is charging you for will align with your figures only if the billing period starts and ends at 01:00 UTC on the first day of the month.
I'm currently working on comprehending my EC2 billing but have come across some inconsistencies in the process. I have been calculating the exact amount of hours one of my on demand instances ran the two past months using the instance's Cloud Trail events. Unfortunately, the monthly values I get differ from 1 hour with the value indicated in AWS billing.
Ah, I'm having the same problem! Which C series did you pick?
Ah, I'm having the same problem! Which C series did you pick?
Ah, I'm having the same problem! Which C series did you pick?
The c5 instance type has a high ratio of compute/CPU versus memory. If you have a compute-intensive application — maybe scientific modelling, intensive machine learning, or multiplayer gaming — these instances are a good choice.
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