Specifications

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High Performance Trading/Algo Speed with Wombat Design and Implementation Guide
OL-15617-01
Concept Features
Networking
Operating System
Application Software
Ta b l e 3 Networking Components
Ethernet Switch Cisco Catalyst 6509 1 GbE, 720 supervisor, 6748 line cards
Ethernet NIC Embedded Broadcom 5708 GbE NIC
Network Interface Configuration None
InfiniBand Switch Cisco InfiniBand SFS7000 (single data rate)
InfiniBand HCA Cisco Cheetah DDR HCA PCIe 8x slot (running at SDR)
Ta b l e 4Operating System
Versi o n RHEL 4.4 64bit
Kernel 2.6.9-42.ELsmp #1 SMP
TCP and UDP Buffers The following parameters were set in the operating system (/etc/sysctl.conf).
net/core/rmem_max=8388608
net/core/wmem_max=8388608
net/core/wmem_default=262144
net/core/rmem_default=262144
net/core/netdev_max_backlog=10000
net/ipv4/tcp_rmem=4096 262144 8388608
net/ipv4/tcp_wmem=4096 262144 8388608
net/ipv4/tcp_window_scaling=0
Operating System Services rhnsd isdn kudzu cups anacron cpuspeed ip6tables pcmcia xfs iptables arptables_jf
cups-config-daemon apmd mdmonitor hpoj nfslock netfs sendmail openibd ntpd
chkconfig crond
Ta b l e 5 Application Software
Server binaries Wombat Feeds 2.17.15a (opra) with 29 West LBM 2.3.4
Server configuration
parameters
MamaTimeFieldFormat: double, MamaPublishSendTime: true, ActivityTimeStamps: false,
LbtTransportLbtrmMulticastAddressHigh,LbtTransportLbtrmMulticastAddressLow,
LbtTransportLbtrmDestinationPort: unique per channel. For Gigabit:
LbtImplicitBatchingInterval: 5, LbtImplicitBatchingMinimumLength: 500. For DAL/IB:
LbtImplicitBatchingInterval: unset, LbtImplicitBatchingMinimumLength: 1
Server affinities and process
priorities
Not set
Client binaries mamaperf 4.0.0a
Client configuration
parameters
Default LBM Parameters with separate MAMA transports defined for data dictionary and data.
Symbol file for each channel containing all Symbols available on channel