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sendmail Performance Tuning by Nick Christenson

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1.8. General Tuning Ideas

There are some general tuning tips that can improve the performance of email service applications in a broad way. Some are simple, common-sense ideas, but they bear mentioning nonetheless. Note that modern UNIX-like operating systems generally do a much better job of tuning themselves these days than they once did. That fact, coupled with the relatively large amount of RAM one can economically install in a system, has meant that the most common sorts of performance-tuning tricks that are described in many books on the subject are much less effective in bringing about an actual performance increase than they were, say, 15 years ago. These tricks might include removing kernel modules to free up memory or increasing kernel ...

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