Re: [linux-usb-devel] ISP116x performance

2003-06-12 Thread Eric Nelson
> Have you tested with multiple USB devices? I'm curious as to how it scales. > We have used a couple of concurrent USB devices, and performance doesn't crater. I can't really be more specific than that at the moment. We generally use webcams and printers as second devices. Neither allows easy mea

Re: [linux-usb-devel] ISP116x performance

2003-06-11 Thread Kyle Harris
On Wednesday 11 June 2003 09:19 pm, Eric Nelson wrote: > > Is 600KB/s during isochronous xfers? Using a PCI based USB host the best > > I've > > > seen for bulk xfers with the Dell Axim PDA is 200KB/sec. > > No. ATL transfers via an ethernet device from a Linux PC, of course :). Have you tested

Re: [linux-usb-devel] ISP116x performance

2003-06-11 Thread Eric Nelson
> Is 600KB/s during isochronous xfers? Using a PCI based USB host the best I've > seen for bulk xfers with the Dell Axim PDA is 200KB/sec. > No. ATL transfers via an ethernet device from a Linux PC, of course :). This is roughly the same performance we see using a laptop performing the same trans

Re: [linux-usb-devel] ISP116x performance

2003-06-11 Thread Kyle Harris
> We're using the ISP1161 on a custom PXA-250 platform (200MHz) > and seeing 600K+ bytes/second over an inexpensive 10-base-T card. > > We're also using a heavily patched driver for isochronous support and > PXA-dma. Is 600KB/s during isochronous xfers? Using a PCI based USB host the best I've se

Re: [linux-usb-devel] ISP116x performance

2003-06-11 Thread Eric Nelson
> I have the ISA/Linux eval card running on a Pentium 133. I'm seeing sustained > bulk tranfer rates (running FTP client on a PDA) of 20-90 Kbytes/sec, > depending on direction. This seems very low. Can anyone confirm what I should > be seeing with this HC and driver? I'm running a 2.4.19 kernel wi