
Issue 11
© Solarflare Communications 2014
140
Solarflare Server Adapter
User Guide
RSS and Interrupts Options
Table 33:
Displayed (supported) options will differ between Windows OS versions and different
Solarflare drivers.
RSS
Disabled - RSS is disabled. (Enabled by default).
Closest Processor - use cores from a single NUMA node -
(default behaviour)
Closest Processor Static - Network traffic is distributed across
available CPUs from a single NUMA node, but there is no
dynamic load balancing.
NUMA Scaling - CPUs are assigned on a round-robin basis across
every NUMA node.
NUMA Scaling Static - As for NUMA Scaling but without dynamic
load balancing.
Conservative Scaling - RSS will use as few processors as possible
to sustain the current network load. This helps to reduce the
number of interrupts..
Max. RSS processors
Set the number of processors to be used by RSS.
If this is greater than or equal to the number of logical
processors in the system then all processors are used.
Interrupt moderation
Adaptive - adjusts the interrupt rates dynamically, depending on
the traffic type and network usage.
Disabled - interrupt moderation is disabled.
Enabled - interrupt moderation is enabled.
Max (microseconds)
This setting controls the value for the interrupt moderation
time. The default value is 60 microseconds and can be changed
for deployments requiring minimal latency.
Base RSS processor
The base processor to be used by RSS. The value is specified as a
group (range 0-9) and CPU number (range 0-63).
Max. RSS processor
The maximum processor available to RSS. The value is specified
as a group (range 0-9) and CPU number (range 0-63).
Max. RSS processors
The maximum number of processors to be used by RSS. The
value is in the range 0-256.
Max. RSS queues
The maximum number of receive queues created per interface.
The value is in the range 0-64.