User Manual

Rev 4.70
Mellanox Technologies
178
C.4 Off-load Registry Keys
This group of registry keys allows the administrator to specify which TCP/IP offload settings are
handled by the adapter rather than by the operating system.
Enabling offloading services increases transmission performance. Due to offload tasks (such as
checksum calculations) performed by adapter hardware rather than by the operating system (and,
therefore, with lower latency). In addition, CPU resources become more available for other tasks.
RxIntModerationPro-
file
1 Enables the assignment of different interrupt moderation profiles
for receive completions. Interrupt moderation can have a great
effect on optimizing network throughput and CPU utilization.
The valid values are:
• 0: Low Latency
Implies higher rate of interrupts to achieve better latency, or to
handle scenarios where only a small number of streams are
used.
• 1: Moderate
Interrupt moderation is set to midrange defaults to allow maxi-
mum throughput at minimum CPU utilization for common sce-
narios.
• 2: Aggressive
Interrupt moderation is set to maximal values to allow maxi-
mum throughput at minimum CPU utilization, for more inten-
sive, multi-stream scenarios.
TxIntModerationPro-
file
1 Enables the assignment of different interrupt moderation profiles
for send completions. Interrupt moderation can have great effect on
optimizing network throughput and CPU utilization.
The valid values are:
• 0: Low Latency
Implies higher rate of interrupts to achieve better latency, or to
handle scenarios where only a small number of streams are
used.
• 1: Moderate
Interrupt moderation is set to midrange defaults to allow maxi-
mum throughput at minimum CPU utilization for common sce-
narios.
• 2: Aggressive
Interrupt moderation is set to maximal values to allow maxi-
mum throughput at minimum CPU utilization for more inten-
sive, multi-stream scenarios.
Value Name Default Value Description
*LsoV1IPv4 1 Large Send Offload Version 1 (IPv4).
The valid values are:
• 0: disable
• 1: enable
Value Name Default Value Description