kernel/Kconfig.hz | 15 +++++++++------ 1 files changed, 9 insertions(+), 6 deletions(-) Index: linux-2.6.16-ck1/kernel/Kconfig.hz =================================================================== --- linux-2.6.16-ck1.orig/kernel/Kconfig.hz 2006-03-20 20:46:54.000000000 +1100 +++ linux-2.6.16-ck1/kernel/Kconfig.hz 2006-03-20 20:46:54.000000000 +1100 @@ -21,14 +21,17 @@ choice help 100 HZ is a typical choice for servers, SMP and NUMA systems with lots of processors that may show reduced performance if - too many timer interrupts are occurring. + too many timer interrupts are occurring. Laptops may also show + improved battery life. - config HZ_250 + config HZ_250_NODEFAULT bool "250 HZ" help - 250 HZ is a good compromise choice allowing server performance - while also showing good interactive responsiveness even - on SMP and NUMA systems. + 250 HZ is a lousy compromise choice allowing server interactivity + while also showing desktop throughput and no extra power saving on + laptops. Good for when you can't make up your mind. + + Recommend 100 or 1000 instead. config HZ_1000 bool "1000 HZ" @@ -41,6 +44,6 @@ endchoice config HZ int default 100 if HZ_100 - default 250 if HZ_250 + default 250 if HZ_250_NODEFAULT default 1000 if HZ_1000