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Linux* Kernel Compiling
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Experimental Results
Two aspects of these results are discussed in this section, namely the HT Technology performance benefit, and its impact on the performance of Intel EM64T.

Hyper-Threading Technology Performance Benefit

This section reviews the kernel build performance of the HT Technology enabled Intel platforms for the 2.6.4 Linux kernel.

Figure 1 displays the HT Technology performance benefit on the 3.6GHz Nocona (x86 and x86-64 environments), and the 3.2 GHz Intel Xeon® platform.

Figure 1.
Enabling HT Technology improves the performance on Intel platforms and the 2.6.4 Linux kernel tested

Intel® EM64T Performance Benefit

The Intel EM64T technology enables running 64-bit applications on 32-bit Intel® Xeon platforms. Switching to the x86-64 environment from the default x86 mode results in a 64-bit software environment, yeilding to better results for the Linux* kernel 2.6.4 compile benchmark.

The following table displays an improvement in performance to compile the Linux kernel 2.6.4 in the x86-64 mode when compared to the x86 mode. While the amount of work done is not the same on these two platforms (as indicated by the number of files compiled), the x86-64 environment enables a quicker compile time for the same kernel on the same platform.

Figure 2 displays the number of kernel source files compiled on the x86 and x86-64 platforms. The number of files compiled is uniform in the x86 OS environment, and higher than the x86-64 OS environment.

Figure 2.

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