AWS Well Architected: Performance Efficiency Notes

README.md

Video: https://www.twitch.tv/videos/177667117

PERF 1. How do you select the best performing architecture?

"In God we trust, all others bring data" W. Edwards Deming

Performance 👎

• Latency
• Throughput
• Latency ⍺ Concurrent Users
• Throughput ⍺ Dataset Size

Guessing 👎

• Exploratory Data Analysis
• Performance Percentiles
• Flaming Graphs
• Decision Matrices

Waterfal 👎 Iterative 👍

Decision Matrix	Weight	DynamicDB	MondoDB	Alexandra
Score		??	??	??
Latency [.5s]	5	?	?	?
Throughput	3	?	?	?
Cost	4	?	?	?
Support	3	?	?	?
License	3	?	?	?
Documentation	4	?	?	?
Community	4	?	?	?

PERF 2. How do you select your compute solution?

Serverless

• https://github.com/awslabs/serverless-application-model
• https://serverless.com/
• https://github.com/aws/chalice
• http://apex.run/

Containers

New Features: https://aws.amazon.com/about-aws/whats-new/2017/09/amazon-ecs-adds-support-for-adding-or-dropping-linux-capabilities-to-containers/

Abby on Twitch: https://aws.amazon.com/twitch/live-coding-with-aws/ (Containers section)

Instances

• CPU
• Memory
• [Disk]
• [GPUs]
• [FPGAs]
• Net[s]

HVM vs. Paravirtual: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types.html

New Instances / Intel Features: https://aws.amazon.com/blogs/aws/ec2-instance-type-update-t2-r4-f1-elastic-gpus-i3-c5/ FPGA Instances: https://youtu.be/8RrbUyw9uSg?t=34m47s

PERF 3. How do you select your storage solution?

Block storage

	I.S.	EBS
Durability	Ephemeral	Durable
Access	Local	Net
Capacity	Predefined	Provisioned
Cost	Included	Extra

Filesystem (EFS)

Object (S3)

PERF 4. How do you select your database solution?

CAP: https://www.infoq.com/articles/cap-twelve-years-later-how-the-rules-have-changed

PERF 5. How do you select your network solution?

Ingestion

Cloudfront: https://aws.amazon.com/cloudfront

API Gateway: https://aws.amazon.com/api-gateway/

AWS IoT: https://aws.amazon.com/iot/

AWS Kinesis: https://aws.amazon.com/kinesis/

Direct Connect: https://aws.amazon.com/directconnect/

PERF 6. How do you ensure that you continue to have the most appropriate resource type as new resource types and features are introduced?

Keep Up to Date and Iterating

• Tecnology Radars: https://www.thoughtworks.com/radar
• Industry References: https://www.infoq.com/
• Conferences: https://www.papercall.io
• Meetups: https://aws.amazon.com/usergroups/

Debug the Bottlenecks

AWS X-Ray https://aws.amazon.com/xray/

PERF 7. How do you monitor your resources post-launch to ensure they are performing as expected?

Active and Passive Monitoring

PERF 8. How do you use tradeoffs to improve performance?

Technique	Applies To	Uses	Gains
Caching	read-heavy	Space	Time
Sharding	write-heavy	Size & Complexity	Time
Compression	large data	Time	Space
Buffering	many requests	Space & Time	Efficiency
A/B Deploy	delivery	cost	availability