I am running 2.0.19 RC1 with a Flex-5000 under Windows 7. Just for fun last night, I changed from the 1394 bus driver that had been provided by the manufacturer of my Firewire card to the legacy 1394 driver. Although I did not spend much time experimenting, it appears that the CPU utilization jumped from an average of about 20% to about 40%. PowerSDR appeared to function normally with either driver. My computer is a Dell quad-core Optiplex 780.
Does this make sense? Ed, K0KC ________________________________ From: Tim (W4TME) <[email protected]> To: [email protected] Sent: Tue, February 22, 2011 10:11:21 PM Subject: [FlexEdge] Windows 1394 Firewire driver setting for Win7 users I just finished discussing this situation with the Firewire developers and here is their recommendation for setting the 1394 Windows driver type when using the 3.5.5 Firewire driver that was included with PowerSDR v2.0.19 RC1. "Our recommendation for 3.5.5 is to use the legacy 1394 bus driver on Win7. This is primarily due to the extra CPU overhead that we identified in Microsoft's new 1394 bus driver." Please refer to this KB article for setting the Windows 1394 driver to the legacy version http://kc.flexradio.com/KnowledgebaseArticle50433.aspx -Tim --- W4TME FlexRadio Systems Internet Systems Admin. Product Verification Team Tune In Excitement^(TM) _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
