Amazon EC2 | Compute Optimized Instances Flashcards
Are all features of Amazon EC2 available for Micro instances?
Compute Optimized Instances
Amazon EC2 | Compute
Currently Amazon DevPay is not available for Micro instances.
When should I use Compute Optimized instances?
Compute Optimized Instances
Amazon EC2 | Compute
Compute Optimized instances are designed for applications that benefit from high compute power. These applications include compute-intensive applications like high-performance web servers, high-performance computing (HPC), scientific modelling, distributed analytics and machine learning inference.
Can I launch C4 instances as Amazon EBS-optimized instances?
Compute Optimized Instances
Amazon EC2 | Compute
Each C4 instance type is EBS-optimized by default. C4 instances 500 Mbps to 4,000 Mbps to EBS above and beyond the general-purpose network throughput provided to the instance. Since this feature is always enabled on C4 instances, launching a C4 instance explicitly as EBS-optimized will not affect the instance’s behavior.
How can I use the processor state control feature available on the c4.8xlarge instance?
Compute Optimized Instances
Amazon EC2 | Compute
The c4.8xlarge instance type provides the ability for an operating system to control processor C-states and P-states. This feature is currently available only on Linux instances. You may want to change C-state or P-state settings to increase processor performance consistency, reduce latency, or tune your instance for a specific workload. By default, Amazon Linux provides the highest-performance configuration that is optimal for most customer workloads; however, if your application would benefit from lower latency at the cost of higher single- or dual-core frequencies, or from lower-frequency sustained performance as opposed to bursty Turbo Boost frequencies, then you should consider experimenting with the C-state or P-state configuration options that are available to these instances. For additional information on this feature, see the Amazon EC2 User Guide section on Processor State Control.
Which instances are available within Compute Optimized instances category?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances: C5 instances are the latest generation of EC2 Compute Optimized instances. C5 instances are based on Intel Xeon Platinum processors, part of the Intel Xeon Scalable (codenamed Skylake-SP) processor family, and are available in 6 sizes and offer up to 72 vCPUs and 144 GiB memory. C5 instances deliver 25% improvement in price/performance compared to C4 instances.
C4 instances: C4 instances are based on Intel Xeon E5-2666 v3 (codenamed Haswell) processors. C4 instances are available in 5 sizes and offer up to 36 vCPUs and 60 GiB memory.
Should I move my workloads from C3 or C4 instances to C5 instances?
Compute Optimized Instances
Amazon EC2 | Compute
The generational improvement in CPU performance and lower price of C5 instances, which combined result in a 25% price/performance improvement relative to C4 instances, benefit a broad spectrum of workloads that currently run on C3 or C4 instances. For floating point intensive applications, Intel AVX-512 enables significant improvements in delivered TFLOPS by effectively extracting data level parallelism. Customers looking for absolute performance for graphics rendering and HPC workloads that can be accelerated with GPUs or FPGAs should also evaluate other instance families in the Amazon EC2 portfolio that include those resources to find the ideal instance for their workload.
Which operating systems/AMIs are supported on C5 Instances?
Compute Optimized Instances
Amazon EC2 | Compute
EBS backed HVM AMIs with support for ENA networking and booting from NVMe-based storage can be used with C5 instances. The following AMIs are supported on C5:
Amazon Linux 2014.03 or newer
Ubuntu 14.04 or newer
SUSE Linux Enterprise Server 12 or newer
Red Hat Enterprise Linux 7.4 or newer
CentOS 7 or newer
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
FreeBSD 11.1-RELEASE
What are the storage options available to C5 customers?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances use EBS volumes for storage, are EBS-optimized by default, and offer up to 9 Gbps throughput to both encrypted and unencrypted EBS volumes. C5 instances access EBS volumes via PCI attached NVM Express (NVMe) interfaces. NVMe is an efficient and scalable storage interface commonly used for flash based SSDs such as local NVMe storage provided with I3 instances. Though the NVMe interface may provide lower latency compared to Xen paravirtualized block devices, when used to access EBS volumes the volume type, size, and provisioned IOPS (if applicable) will determine the overall latency and throughput characteristics of the volume. When NVMe is used to provide EBS volumes, they are attached and detached by PCI hotplug.
What network interface is supported on C5 instances?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances use the Elastic Network Adapter (ENA) for networking and enable Enhanced Networking by default. With ENA, C5 instances can utilize up to 25 Gbps of network bandwidth.
Which storage interface is supported on C5 instances?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances will support only NVMe EBS device model. EBS volumes attached to C5 instances will appear as NVMe devices. NVMe is a modern storage interface that provides latency reduction and results in increased disk I/O and throughput.
How many EBS volumes can be attached to C5 instances?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances support a maximum for 27 EBS volumes for all Operating systems. The limit is shared with ENI attachments which can be found here http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html. For example: since every instance has at least 1 ENI, if you have 3 additional ENI attachments on the c4.2xlarge, you can attach 24 EBS volumes to that instance.
What is the underlying hypervisor on C5 instances?
Compute Optimized Instances
Amazon EC2 | Compute
C5 instances use a new EC2 hypervisor that is based on core KVM technology.
