Hi Hal, Can you post the Twiki URL after posting it.
Venu Hal Murray wrote: >> So its the DISK I/O thats causing loss of ticks ? > > My first Red Hat system defaulted to no-DMA for IDE disks. (Yes, > that was a long time ago.) With that setup, it was simple to generate > lots of lost timer interrupts: just keep the disk busy doing reads. > (Seeks don't count. Read consecutive sectors.) > > My problem went away when I turned on DMA. > > I have a hack that I originally wrote for measuring disk > transfer rates. I'll dust it off and put it on the wiki > if people think it will be helpful for discussions like this. > > It compiles on Linux. It should be easy to get it to work on > other *nix systems. > _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
