Does the Linux on x86-64 support multiple huge page sizes (e.g., both 2MB and 1GB page sizes beyond the 4KB base page size)? If yes, is there a way to specify that for a given allocation which huge...

The user virtual address space for x86-64 with Linux is 47 bit long. Which essentially means that Linux can map a process with around ~128 TB virtual address range. However, what confuses me that...

I want to estimate the performance overhead due to TLB misses on a x86-64 (Intel Nehalem) machine running Linux. I wish to get this estimate by using some performance counters. Does anybody has som...

This question is related to but different from this one about variable length arrays in C99. The answers point out that one danger with allocating variable length arrays (or just large arrays of a...