Supermicro X5DL8-GG Driver
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Supermicro X5DL8-GG Driver
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Other Supermicro X5DL8-GG are focused on hardware: Some evaluations have been realized also on the network boards, see for example . But despite of these activities, large interesting areas still require a deeper investigation: This work tries to give a contribution to the investigation of the above aspects by reporting the results of a deep activity of optimization and testing realized on a OR architecture based on Linux software, realized inside the participation to the EURO project Supermicro X5DL8-GG.
We have focused our effort on the packet forwarding functionality testing. Our main objectives have been the performance evaluation of an optimized OR, both with external throughput and internal profiling measurements. Moreover, specific tests have been realized for an IP Supermicro X5DL8-GG aware contest to verify the effectiveness of the flows differentiation and the impact on the performance of classification and scheduling functionalities.
With this respect we have identified a high-end reference Supermicro X5DL8-GG based hardware architecture and Linux kernel 2. With the QoS tests we have verified the presence of serious problems in assuring flow separation but we have also experimented a feasible solution to this problem obtained by using advance capabilities Supermicro X5DL8-GG some modern network boards.
The paper is organized as in the following. Supermicro X5DL8-GG Section describes the architecture of the open node for what concern both hardware and software structure. Section 3 reports the parameter tuning operations realized on the OR to obtain the maximum performance.
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Section 4 describes the QoS functions activated inside the node structure, while Sections 5 describes the external Supermicro X5DL8-GG internal performance evaluation tools used in the tests. Section 6 reports the numerical results of all the most relevant experiments. The conclusions and future activities Supermicro X5DL8-GG in Section 7. To define the OR reference architecture we have established some main criterions and we have used them to a priori select a set of basic elements.
The objective has Supermicro X5DL8-GG to obtain a high—end node base structure predisposed for top performance with respect to IP packet forwarding with QoS support.
Supermicro X5DL8-GG The decision process, the criterions and the final selection results are Supermicro X5DL8-GG described in the following, separately for hardware and software elements. The PC architecture is a general-purpose one and it is not specifically optimized for network operations.
This means that, in principle, it cannot Supermicro X5DL8-GG the same performance level Supermicro X5DL8-GG custom Supermicro X5DL8-GG network equipments, which generally use dedicated HW elements to handle and to parallelize the most critical operations. This characteristic has more impact on the data plane performance where custom equipments usually utilize dedicated ASIC, FPGA, Network Processor and specific internal bus, to provide a high parallelism level in the packet elaboration and exchange.
On the other hand, COTS hardware can guarantee two very important features as the cheapness and the fast and continuous evolution of many of its components.
Moreover, the Supermicro X5DL8-GG gap might be not so large and anyway more than justified by the cost difference. It is evident that the bandwidth of these busses and the PC computational capacity are the two most critical hardware elements involved in determination of the maximum performance in terms of both the peak passing bandwidth in Mbps and the maximum number of forwarded packets per second.
So the selection criterions have been very fast internal busses and a dual CPUs system with Supermicro X5DL8-GG integer computational power.
The Xeon processor has the Pentium Supermicro X5DL8-GG core that allows multiprocessor configurations and with Hyper-Threading HT capability enabled. In our test we used a Xeon version with 2.
The memory bandwidth, supported by Supermicro X5DL8-GG chipset, matches the system bus speed, but the most important point is that the memory is 2-way interleaved, which assures high performance and low average access latencies. For Supermicro X5DL8-GG concern the software, we have decided to utilize a Linux environment. This choice has been mainly suggested by the well-known large and effective support given by this OS to network applications servers, firewalls, More specifically, we have adopted the Debian  Linux distribution.