I am writing this to announce an article on "sysenter" way of doing systems calls in newer linux kernels. Here is the link: http://manugarg.blogspot.com/2006/07/sysenter-based-system-call-mechanism.html Abstract: Starting with version 2.5, linux kernel introduced a new system call entry mechanism on Pentium II+ processors. Due to performance issues on Pentium IV processors with existing software interrupt method, an alternative system call entry mechanism was implemented using SYSENTER/SYSEXIT instructions available on Pentium II+ processors. This articles explores this new mechanism. Discussion is limited to x86 architecture and all source code listings are based on linux kernel 2.6.15.6. hth, m -- Manu Garg http://www.manugarg.com "Journey is the destination of the life." -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
