
Solarflare
Server
Adapter
User
Guide
Solarflare
Adapters
on
Windows
Issue
20
©
Solarflare
Communications
2017
243
Table
57:
Latency
Tuning
Settings
Tuning
Parameter
How?
Intel
QuickData
(Intel
chipsets
only)
Enable
in
BIOS
and
configure
as
described
in
guide.
Interrupt
Moderation
Disable
in
Network
Adapter’s
Advanced
Properties.
Adaptive
Interrupt
Moderation
Leave
at
default.
This
setting
is
ignored
when
interrupt
moderation
is
disabled.
Interrupt
Moderation
Time
Leave
at
default
(60µs).
This
setting
is
ignored
when
interrupt
moderation
is
disabled.
Large
Receive
Offloads
Disable
in
Network
Adapter’s
Advanced
Properties.
Large
Send
Offloads
Leave
at
default
(Enabled).
Max
Frame
Size
Configure
to
maximum
supported
by
network
in
Network
Adapter's
Advanced
Properties.
Memory
bandwidth
Ensure
memory
utilizes
all
memory
channels
on
system
motherboard.
Offload
Checksums
Leave
at
default
(Enabled).
PCI
Express
Lane
Configuration
Ensure
the
adapter
is
in
an
x8
slot
(2.0
or
later),
and
that
current
speed
(not
the
supported
speed)
reads
back
as
“x8
and
5GT/s”,
or
“x8
and
8GT/s”,
or
“x8
and
Unknown”.
Power
Saving
Mode
Disable
C1E
and
other
CPU
sleep
modes
to
prevent
OS
from
putting
CPUs
into
lowering
power
modes
when
idle.
Receive
Segment
Coalescing
Disable
in
Network
Adapter’s
Advanced
Properties.
Receive
Side
Scaling
Application
dependent
RSS
NUMA
Node
Leave
at
default
(All).
TCP
Protocol
Tuning
Leave
at
default
(install
with
“Optimize
Windows
TCP/IP
protocol
settings
for
10G
networking”
option
selected).
TCP/IP
Checksum
Offload
Leave
at
default