Dear all, does anyone of you know if I might use rdtscl also in_irq() and in_soft_irq()??? Thanks, Lukas -- Lukas Ruf Bellariastr. 11 CH-8002 Zuerich +41 1 281 3545 -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/