User Manual
Table Of Contents
- Mellanox WinOF VPI User Manual
- Table of Contents
- List of Tables
- Document Revision History
- About this Manual
- 1 Introduction
- 2 Driver Features
- 3 Deploying Windows Server 2012 with SMB Direct
- 4 Driver Configuration
- 5 Performance Tuning
- 6 OpenSM - Subnet Manager
- 7 InfiniBand Fabric
- 7.1 Network Direct Interface
- 7.2 part_man - Virtual IPoIB Port Creation Utility
- 7.3 InfiniBand Fabric Diagnostic Utilities
- 7.4 InfiniBand Fabric Performance Utilities
- 7.4.1 ib_read_bw
- 7.4.2 ib_read_lat
- 7.4.3 ib_send_bw
- 7.4.4 ib_send_lat
- 7.4.5 ib_write_bw
- 7.4.6 ib_write_lat
- 7.4.7 ibv_read_bw
- 7.4.8 ibv_read_lat
- 7.4.9 ibv_send_bw
- 7.4.10 ibv_send_lat
- 7.4.11 ibv_write_bw
- 7.4.12 ibv_write_lat
- 7.4.13 ibaddr
- 7.4.14 ibcacheedit
- 7.4.15 iblinkinfo
- 7.4.16 ibqueryerrors
- 7.4.17 ibsysstat
- 7.4.18 perfquery
- 7.4.19 saquery
- 7.4.20 smpdump
- 8 Software Development Kit
- 9 Troubleshooting
- 10 Documentation
Performance TuningRev 4.3
Mellanox Technologies
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b. Dual port traffic - Improves performance for running traffic on both ports simultaneously.
c. Forwarding traffic - Improves performance for running scenarios that involve both ports (for example: via
IXIA)
d. Multicast traffic - Improves performance when the main traffic runs on multicast.
6. Click on “Run Tuning” button.
Clicking the “Run Tuning” button will change several registry entries (described below), and will
check for system services that may decrease network performance. It will also generate a log
including the applied changes.
Users can view this log to restore the previous values. The log path is:
This tuning is required to be performed only once after the installation is completed, and on one
adapter only (as long as these entries are not changed directly in the registry, or by some other
installation or script).
Please note that a reboot may be required for the changes to take effect.
5.1.4 Tuning the Ethernet Network Adapter
The Ethernet Network Adapter general tuning can be performed during installation by modifying
some of Windows registries as explained in section "Registry Tuning" on page 32. Specific sce-
narios tuning can be set post-installation manually. To improve the network adapter performance,
activate the performance tuning tool as follows:
1. Start the "Device Manager" (open a command line window and enter: devmgmt.msc).
2. Open "Network Adapters".
3. Select Mellanox Ethernet adapter, right click and select Properties.
4. Select the "Performance tab".
5. Choose one of the tuning scenarios:
a. Single port traffic - Improves performance for running single port traffic each time.
b. Single stream traffic - Optimizes tuning for applications with single connection.
c. Dual port traffic - Improves performance for running traffic on both ports simultaneously.
d. Forwarding traffic - Improves performance for running scenarios that involve both ports (for example: via
IXIA)
e. Multicast traffic - Improves performance when the main traffic runs on multicast.
%HOMEDRIVE%\Windows\System32\LogFiles\PerformanceTunning.log