docs/doc/source/deploy/kubernetes/worker-function-performance-profiles.rst
Ron Stone dcf0c9a372 Deploy folder structure
Move content under deploy/kubernetes as per convention.
This is required for DS builds.

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: I5da5b554ea274cbd3b1a2c0f47bf649df1080173
2021-08-04 08:51:01 -04:00

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.. _worker-function-performance-profiles:
====================================
Worker Function Performance Profiles
====================================
|prod| offers a choice of two performance profiles for worker hosts
configurable at the Kubernetes platform level.
**Standard**
This is the default profile, offering an optimal balance between throughput,
latency and functionality. The standard profile is suitable for most
applications.
**Low Latency**
This profile is optimized for low-latency performance. Characteristics of a
low-latency worker host include:
- lower throughput for most configurations
- higher power consumption at low CPU utilization
- disabled per-CPU scheduler watchdogs. This can result in increased
fault detection time for some fault scenarios.
|org| recommends the low-latency profile only for applications with
stringent latency constraints such as |MEC|.
You can create a heterogeneous configuration in which standard and low-latency
worker hosts are mixed in the same standard deployment. Standard and
low-latency worker nodes are identified with node labels. When launching a
container, you can choose the required performance profile by specifying the
appropriate label in the node-selector.