Messages in this thread | | | From | (G.W. Wettstein) | Date | Mon, 18 Mar 1996 11:41:36 CST | Subject | Re: PPP Slowdown |
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On Mar 18, 11:55am, Alan Cox wrote:
} Subject: Re: PPP Slowdown
> > I second the fact that PPP seems to be slowed down in 1.3.73+ .. as my > > ping replies have gone from 190ms to 260ms reply times.. It is not the > > fault of the providor, nor is it the fault of the pinged machine... The > > only thing it could be is linux. Under windows 95, I get 190ms ping time > > flawlessly... Maybe it interrupt latency that increased?? > > The interrupt latency has gone through the roof in 1.3.7x kernels, I'm > losing characters at 57,600 on a 486 that with 1.3.32 is 100% solid with > hdparm -u 1 set.
I concur with Alan on this point. We are testing 1.3.xx kernels on a pair of our development machines and are seeing serial overrun errors that we have never seen before.
The development machines are running our interrogatory engines which sit and make numerous serial connections to mainframe hosts on the corporate backbone. The load is not higher on these machines but the complaints from the kernel are up.
> Alan
Greg
}-- End of excerpt from Alan Cox
As always, Dr. G.W. Wettstein Oncology Research Div. Computing Facility Roger Maris Cancer Center INTERNET: greg@wind.rmcc.com 820 4th St. N. Fargo, ND 58122 Phone: 701-234-7556 ---------------------------------------------------------------------- `The truest mark of a man's wisdom is his ability to listen to other men expound their wisdom.' -- GWW
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