> Neat! Have any of the common libc’s picked this up yet? glibc has, as has the Linux kernel. > How does ERMS deal with interrupts? If I `rep movsb` while int

> Neat! Have any of the common libc’s picked this up yet? glibc has, as has the Linux kernel. > How does ERMS deal with interrupts? If I `rep movsb` while interrupted, do I also get the fast implementation? Whether or not you have ERMS/FSRM available, interrupts are always defined to occur at an architecturally defined state. I don't know of any reason why, when it resumes, it would stop being optimized.