Likewise. Fresh install on to 256GB SSD. Com0Com, VAC, MiniDeluxe, DDUTIL, CWSkimmer. DPC max this morning 370us. i7 Machine. ASUS Board.
When testing the pre-release and beta I found that the drivers that may be culprits can include anything wireless - network, mouse, keyboard etc. Did not have any issues with Video or Storage drivers. My machine now has GB Ethernet instead if Wifi and a USB mouse and KB. But I also have a Logitech T650 touchpad that does cause spikes of 1000+ if used aggressively. What I do notice on my Samsung TH700 Touch Laptop is that the DPC spikes go to 3000+ when using the touch screen. I use this laptop with the 1500. The touch interface seems to be the biggest issue for me. -- Richard A Clafton | the brITish guy | W5\G7EIX RIROC - Hosting - Development - Technology http://www.riroc.com | rclaf...@riroc.com "Jack of all trades, master of none, though often better than the master of one." -----Original Message----- From: FlexRadio [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Rich - W3ZJ Sent: Monday, October 29, 2012 8:54 AM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Problem with high DPC count after upgrading to W8 Pro I have installed Windows 8 on a second internal had drive so that I can easily boot either WIn 7 or Win 8. I did a clean install on a reformatted hard drive and did not bring any files or applications forward from Win 7. I have now installed the full DXLab suite, PSDR 2.4.4, CW Skimmer, DDUtil and PstRotatorAZ on Win 8 and nothing else so far. DPCs are about the same as they were on Win 7 with a maximum DPC of 419 Us in the past hour. PSDR and my Flex-3000 are performing well. I am wondering if the folks who are having problems followed the upgrade path and brought everything forward from Win 7. That may be the difference. 73, Rich - W3ZJ Les Keppie wrote: > Hi All > Have just upgraded from Windows 7 Ultimate to Windows 8 Pro > Computer is Asus m/b M4A78-VM - processor is 3.1g AMD Phenom(tm) II > X2 550 Processor Socket AM3 (938) > with 4g ram - radio is Flex 3000 > > This system has been running well on W7 ultimate with dpc count of > less than 100us normally around the 75us > Now with the upgrade to W8 Pro dpc is around 1000us > LatencyMon reports Current measured kernel timer latency around 12 to > 16us with Highest measured kernel timer latency as 1000 to 1009us > Transmitting using EasyPal gives regular breaks in tx audio with > receiving station reporting no lock on signal > > Anyone got any ideas on how to reduce the dpc spikes or will it be a > trip down the W7 reinstallation path??? > So far have not been able to work out if it is possible to uninstall > W8 back to W7 > > I have an image of the system from september 9 but W8 doesnt want to > know about it > > Regards > Les VK2DSG _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
