Messages in this thread | | | Date | Wed, 28 Jul 1999 19:45:15 +0200 | From | Matthew Wilcox <> | Subject | Re: Microsecond resolution timers - final word |
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On Tue, Jul 27, 1999 at 06:44:16PM +0200, Artur Skawina wrote: > > > However, I understand that those patches have brought to light certain > > other kernel problems which have been fixed as a result... > > I'm afraid fixing some of them will take some time, as the fixes sometimes > are unobvious, require changes to apis and/or are controversial ;) > [one problem, which i didn't see mentioned or handled yet, is: anything > that assumess it can turn off interrupts for less then 1/100s. If you > set HZ to 1024 the limit suddenly becomes <1ms and the chances of missing > timer ticks increases]
Since the Alpha has HZ=1024, fixing those drivers is not a controversial change.
-- Matthew Wilcox <willy@bofh.ai> "Windows and MacOS are products, contrived by engineers in the service of specific companies. Unix, by contrast, is not so much a product as it is a painstakingly compiled oral history of the hacker subculture." - N Stephenson
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