Linux founder hopes to increase the number of Linux kernel performance tests

In March 31, Linux founder Ranas torvalz advocated increasing the number of regular performance tests on the Linux kernel to promptly identify the causes of performance degradation.

Currently, only a few of the latest linux kernels have performance testing data. Tovalz said that the most effective method at present should be to continuously test the kernel performance and easily find inefficiency.Code. In a post posted on the Linux kernel mailing list, torvalz said: "Currently, this method is intended for developers to discover code with low performance, there will be a two-month lag. If you test the performance once a day (or at least twice a week), the results will be very different."

Intel employee James Chen raised this issue when releasing performance data for different versions of Linux 2.6 kernel. According to the testing data of Dr. Chan, the performance of kernel 2.6.11, 2.6.9, 2.6.8, and 2.6.2 is 2.4, 2.6, 13%, and 6% lower than that of Red Hat Enterprise Linux 3, which is based on Linux 23% and has some functions of Linux 1%.

"Only by increasing the number of performance tests can you promptly discover the code that causes huge performance differences between different versions. For example, performance changes between 2.6.2 and 2.6.8 are obvious, but many developers do not know anything about this '. If you perform a one-time test every week, you can also find the crux of performance changes ."

He said he would persuade the management to increase the number of regular tests on the Linux kernel. "I decided to make it clear to the management that lenas wants to perform a performance test on the Linux kernel every day," he said ."