Kernel Stack Overflows Elimination - Advanced Operating Systems and Kernel Applications - page 11

Figure 2. BYTE Unix benchmark for Pentium 1.7GHz.

concluSion Page fault latency measurements showed that

the original page fault time is averagely 3.55 mi-
croseconds on the Pentium 1.7GHz we used in
the previous test, whereas the page fault time of
the kernel stack is averagely 7.15 microseconds
i.e. the kernel stack page fault time is apparently
roughly double.

An overflow in kernel stack is a common bug in
the Linux operating system. These bugs are dif-
ficult to detect because they are created as a side
effect of the code and not as an inherent mistake
in the algorithm implementation.

Figure 3. BYTE Unix benchmark for Pentium 2.4GHz.