Exactly :) Alphas used to set 1024 as default. It is because Alpha was very low interrupt latency compared to x86. On Mon, 24 Jun 2002, Amit Kucheria wrote: > IMHO :) > > HZ defines the heart beat of the Linux system in terms of 'jiffies'. > Increasing HZ will increase the number of interrupts on the system (e.g. > timer interrupt) and hence might not be useful for typical desktops, since > handling these system interrupts will not leave much CPU time for > applications. > > But for a server which usually does only one thing (e.g. enforcing QoS), > this increase in the interrupts should not be a problem. > > I configure my servers with HZ=1024 regularly in include/net/pkt_sched.h > without any problems. > > ciao, > Amit > > On Mon, 24 Jun 2002, Martin Devera wrote: > > > I change it regulary. I didn't experienced any problems - only > > lockups on slow systems which can't handle it. > > There should be no problem regarding the change. > > devik > > > > On Mon, 24 Jun 2002, Alexey Talikov wrote: > > > > > I can't answer you completely ( this question for kernel maintainers ) :( > > > But as I know this value used for IRQ (see arch/i386/kernel/irq.c) > > > different kernel timers (arch/i386/kernel/time.c) for SMP (multiprocessor) > > > in APIC functions ASPI functions almost in all drivers even in PCI bus > > > and ATM subsystem and many many other > > > > > > I have no idea about after-effects of change HZ ! > > > I don't know about possibility to change this value only for traffic control functions ! > > > > > > I think change this value for Ix86 architecture not so simple ! > > > > > > If somebody have idea about this, share it with me ! > > > > > -- > I'm an angel!!! Honest! > The horns are just there to hold the halo up straight. > ^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^-^ > Amit Kucheria > EECS Grad. Research Assistant > University of Kansas @ Lawrence > (R): +1-785-830-8521 ||| (C): +1-785-760-2871 > ____________________________________________________ > > > _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
