In Linux only the kernel( and its modules) run in kernel space. All others processes (including X11, BASH, KDE, etc...) run in user space. There is no speed increase it is mearly about permissions to access the hardware directly and other assembly commands which are limited to kernel space. I am not sure about Windows95 and how they handle the spaces. Tom On Sunday 01 September 2002 2:17 pm, Mcen navaraj wrote: > hi, > > what is the use of two privilege level ? > is there any performance is increase if we implement > some > program in the kernel space ? > > in linux please tell me in which space ( user or > kernel ) > the X11 is implemented ? > why i am asking this question means if sometimes the > system > hangs , only the start menu ( that is k in kde ) is > quickly > popup's.Another reason for asking this question is my > friend told the desktop in windows95 is implemented in > the > kernel space. > > please give me some useful info ( anything related to > the > windows or linux ). > > thanks > bye > > > __________________________________________________ > Do You Yahoo!? > Yahoo! Finance - Get real-time stock quotes > http://finance.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/