Elton Lum
05/23/2013 4:22 PM
post101654
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Hi Everyone,
I have a prospect who would like to use QNET to distirbute image files to various QNX nodes for processing. Prospect is
envisioning using QNET over PCIe.
A question about any known latencies or limitations with QNET came up. Regarding latency, is there any measurable
overhead with QNET beyond whatever the hardware latency may be?
As for limitations, it was brought to my attention that large file transfers over QNET can be problematic with the
hardware (Ethernet in this case) not being able to keep up, resulting in timeouts to occur with QNET. Would this be an
issue over PCIe?
Finally, does anyone have or know any performance metrics of QNET over any medium as compared to other classic protocol
transfer like TCP/IP?
Thanks,
Elton.
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