Performance
& clouds
Performance matters
Clouds
are
different
Infrastructure
as a Service
Platform
as a service
Linked to revenue
Elements of latency
Humans and
responsiveness
You control the guts
Fast, until it's very slow
You have to scale yourself
Write and forget
Slow, but consistently so
Request
3s
Request
3s
Request
3s
Request
9s
Request
Request
Request
6s
Request
6s
Request
6s
Request
6s
Request
Request
Faster stuff keeps humans engaged
10ms and we think it's real
100ms and we think they're in the room
1 second and we pay attention
10 seconds and we tune out
Clickthrough
Loyalty
Web KPIs
Service discovery
Request
Host time
Response
Client time
Bare
metal
Internal
cloud
IaaS
PaaS
Hugely tweakable
Rack & stack the atoms
Somewhat tweakable
Operationally efficient
You can compose the architecture
Manual scaling of bits
No say in anything
Not your fault
Different models
Limitations on
what you collect
Tap here
Test here
Agent
here
Can't tap
Can't own the VM
Can have a proxy
Old School
New Skool
Ultimate tradeoff
As cheap as possible
Efficient operations
Only pay for what you need
Minimal effort
As fast as possible
Maximize revenues
Encourage loyalty
Total productivity
Cost per
visitor-second
=
External to you
Switching & standards
Service