Gerhard, Thanks for the information. More questions...
What type of transfers were you doing? (e.g. A32/D64? SST320 or SST267?) Are these transfer from userspace data, from kernelspace data, or from the Tundra's pattern buffer? What was your PCI bus speed & width? Were you using inbound/outbound windows or Tundra's DMA controller? What was the Tundra chipset configuration for the 168 MBps? Thanks, Tim > -----Original Message----- > From: linuxppc-embedded-bounces+tmartin=viasat.com at ozlabs.org > [mailto:linuxppc-embedded-bounces+tmartin=viasat.com at ozlabs.org] On Behalf > Of Gerhard Jaeger > Sent: Wednesday, April 26, 2006 12:26 AM > To: linuxppc-embedded at ozlabs.org > Subject: Re: PPC Linux support for Tundra TSI148 > > On Wednesday 26 April 2006 01:47, Martin, Tim wrote: > > Does anyone out there have any real world measured performance of a > > Linux PowerPC (kernel module + user space application) doing 2eSST VME > > transfers with the Tundra TSI148 chipset? > > > > Tundra has a Linux driver available for the Motorola MVME6100 , but told > > me they don't have any performance data available. I'm looking for > > sustained throughput rates, not the peak burst rates (e.g. 320 MBps, 267 > > MBps). > > > > Hi, > > I've done here some tests between two MVME6100, while updating the 6100 > BSP > for our embedded Linux distro. Depending on the buffersize, alignment, VME > and > PCI FIFO settings we have (without further optimizations) throughput rates > ranging > from 100MBps up to 168MBps. I think some tuning could still be done. > > HTH > Gerhard > > -- > Gerhard Jaeger <gjaeger at sysgo.com> > SYSGO AG Embedded and Real-Time Software > www.sysgo.com | www.elinos.com | www.pikeos.com | www.osek.de > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded