Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 27 Oct 2003 10:48:55 +0100 (MET) | From | Mikael Pettersson <> | Subject | Re: [RFC] must fix lists |
| |
On Thu, 23 Oct 2003 22:11:35 +0100, Alan Cox wrote: >On Mer, 2003-10-22 at 03:50, Albert Cahalan wrote: >> The system in question would also lose time when >> under heavy load. Note that HZ is now 1000 HZ. >> If interrupts are kept off for too long or an >> SMI grabs the CPU... > >With a lot of laptops this is a huge problem. Its one of the reasons Red >Hat went back to 100Hz in the RH 2.4 tree. With many laptops your clock >becomes junk at 1Khz. It will be interesting to see if the ACPI timers >help but that wont solve things for older laptops.
Or for really old desktops. My 486 loses time at a rate of about 2 minutes per hour when running 2.5/2.6 and doing lots of disk I/O. Changing HZ back to 100 solves that problem.
I think we need a CONFIG_HZ.
/Mikael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| ![\](/images/icornerr.gif) |