D-Link DXE-810S Manual page 10

Driver Advanced Properties Tab: Use different RSS parameters to define RSS state and cores to be used for
RX traffic processing.
TCP/IP full offload
DXE-810S does not use Windows Chimney interface, therefore it is recommended to disable it for stressful
testing:
Command prompt:
netsh interface tcp set global chimney=disabled
Autotuning
Starting from Windows Vista, Microsoft introduced new TCP management option called autotuning. This
configuration, which is enabled by default in modern systems, gives Windows OS a permission to
automatically manage TCP connection parameters for better long range WAN performance. For high stress
testing, administrators should disable it.
Command Promt:
netsh interface tcp set global autotuninglevel=disabled
http://www.speedguide.net/articles/windows-7-vista-2008-tweaks-2574
Network Throttling Index
Windows OS implements a restriction mechanism for processing non-media network traffic.
Following registry key controls this index:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Multimedia\SystemProfile NetworkThrottlingIndex=ffffffff (DWORD)
Recommendation is to change default 0x10 to 0xFFFF_FFFF for maximum throughput.
http://www.speedguide.net/articles/windows-7-vista-2008-tweaks-2574
Linux OS
For best results, it is recommended that a fresh copy will be installed and all updates applied.
Firewall
For uninterrupted benchmark testing disabling Firewall would be the best practice. Please follow your Linux
flavor documentation to shut down Firewall.
SMP IRQ Affinity
D-Link Networks devices uses Round Robin interrupt allocation method. Administrator should make sure that
at least 4 cores are allocated in order to service D-Link Networks NIC interrupts.
# echo <hex_bit_mask> > /proc/irq/40/smp_affinity
Note: Administrator should correctly define the bit mask.
The following link provides more information regarding IRQ SMP affinity:
https://access.redhat.com/site/solutions/15482#4_Determine_the_correct_IRQ_SMP_affinity_mask
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