[ntp:questions] Losing clock ticks (Was: Severe time drift for Undisciplined Local Clock)

Uwe Klein uwe_klein_habertwedt at t-online.de
Thu Apr 12 19:54:33 UTC 2007


Hal Murray wrote:
>>>(Linux is OK for a dedicated server, although it can lose clock
>>>ticks if it is doing other things that require disk I/O.)
>>
>>I don't know why this is posted continuously here.
> 
> 
> Rethat 7.2 (I may be off by a few tenths) and probably
> others of that time shipped with the IDE driver defaulting
> to using PIO rather than DMA.  It was pretty easy to miss
> interrupts if you had a lot of disk activity.  (I had a test
> program that would drop zillions of them.)
> 
7.1 (Seawolf), April 16, 2001
7.2 (Enigma), October 22, 2001
7.3 (Valhalla), May 6, 2002

In Linux DevelTime that is just a bit more recent than Sodom and Gomorrha ;-)
As has been said by one prominent Linux Developer.
	"There _are_ on occasion brown paperbag releases"

uwe




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