-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Aniruddha wrote:
While poking around in the kernel source I learned that openSUSE's default Timer frequency is set to 250 HZ. Which is good for server usage.
Why not set the default Timer frequency to 1000 HZ which is better suited for desktop?
The cost/benefit just isn't worth it. A higher HZ value carries a cost with it: The system fires off the timer 4x as frequently, which means it's busy running the timer interrupt when it could be something else - like running your programs, or more importantly, idling the CPU. This can affect battery life in notebooks, which DO fall in the "desktop" category. That said, the 10.3 kernels on i386 machines are tickless. The timer interrupt is set up on an on-demand basis, so the HZ value really shouldn't matter. Tickless support hasn't been implemented for x86_64 yet, though. - -Jeff - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFHEkQFLPWxlyuTD7IRAlwDAKCpF/AQFyTKo6o+v7wAFl8Avmt2gQCeP68E PjG2/YhdwXYOBI+LJq61oNM= =ER5F -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org