MB-NG Meeting UCL 19 Apr 02

1
Task 3.1 PC provision Update and Proposal
2
The SuperMicro P4DP6 Motherboard

• Dual Xeon Prestonia (2cpu/die)
• 400 MHx Front side bus
• Intel E7500 Chipset
• 6 PCI-X slots on 4 independent PCI buses
• Can select
• 64 bit 66 MHz PCI
• 100 MHz PCI-X
• 133 MHz PCI-X
• 2 100 Mbit Ethernet
• Adaptec AIC-7899W dual channel SCSI
• UDMA/100 bus master/EIDE channels
• data transfer rates of 100 MB/sec burst

3
The SuperMicro P4DP6 Motherboard

• Dual Xeon Prestonia (2cpu/die)
• 400 MHx Front side bus
• Intel E7500 Chipset
• 6 PCI-X slots
• 4 independent PCI buses
• Can select
• 64 bit 66 MHz PCI
• 100 MHz PCI-X
• 133 MHz PCI-X
• 2 100 Mbit Ethernet
• Adaptec AIC-7899W dual channel SCSI
• UDMA/100 bus master/EIDE channels
• data transfer rates of 100 MB/sec burst

4
Latency Intel Pro/1000 on P4DP6

• Motherboard SuperMicro P4DP6 Chipset Intel
  E7500 (Plumas)
• CPU Dual Xeon Prestonia (2cpu/die) 2.2 GHz Slot
  4 PCI, 64 bit, 66 MHz
• RedHat 7.2 Kernel 2.4.14

• Latency high but smooth
• Indicates Interrupt coalescence
• Slope 0.0136 us/byte
• Expect
• PCI 0.00188
• GigE 0.008
• PCI 0.00188
• 0.0118 us/byte
• CollaborationBoston Ltd. (Watford) SuperMicro
  Motherboards, CPUs, Intel GE NICsBrunel
  University Peter Van SantenUniversity of
  Manchester Richard Hughes-Jones
• www.hep.man.ac.uk/rich/net/nic/GigEth_
  tests_Boston.ppt

5
Throughput Intel Pro/1000 on P4DP6

• Motherboard SuperMicro P4DP6 Chipset Intel
  E7500 (Plumas)
• CPU Dual Xeon Prestonia (2cpu/die) 2.2 GHz Slot
  4 PCI, 64 bit, 66 MHz
• RedHat 7.2 Kernel 2.4.14

• Max throughput 950Mbit/s
• Some throughput drop for packets gt1000 bytes
• Packet loss small 800 1000 byte packets

6
PCI Intel Pro/1000 on P4DP6

• Motherboard SuperMicro P4DP6 Chipset Intel
  E7500 (Plumas)
• CPU Dual Xeon Prestonia (2cpu/die) 2.2 GHz
  Slots PCI, 64 bit, 66 MHz
• RedHat 7.2 Kernel 2.4.14

• ITP4007
• 1400 bytes sent
• Wait 1000 us
• Send CSR time 2.0 us
• Send Data time 3.25 us
• Recv Data time 2.2 us
• Slot 3 to slot 5
• ITP4001
• Detail of 1400 bytes sent
• CSR time 2.2 us
• Data time 3.2 us
• Slot 4 to slot 4
• Small differences between slots

7
PCI Intel Pro/1000 on P4DP6

• Motherboard SuperMicro P4DP6 Chipset Intel
  E7500 (Plumas)
• CPU Dual Xeon Prestonia (2cpu/die) 2.2 GHz Slot
  3-5 PCI, 64 bit, 66 MHz
• RedHat 7.2 Kernel 2.4.14

• ITP4010
• 1400 bytes sent
• Wait 8 us
• 5.14us on send PCI bus
• PCI bus 68 occupancy
• 2 us on PCI for data recv

8
Quote and Proposal

• Specification
• SuperMicro P4DP6 Chipset Intel E7500 (Plumas)
• Dual Xeon Prestonia (2cpu/die) 2.0 GHz CPUs
• 512 Mbytes Memory
• 40G disk
• Intel pro1000 copper Gigabit I/f
• Superserver 6022p-6 2U rack mount Chassis
• Quote from Boston Ltd. 2056
• Proposal for Discussion
• Purchase 6 (3 UCL 3 Manc)
• Manc offer to install OS kernels Web100
  tools
• Will follow Tims security recipe ( currently
  testing this)