It seems that the minimal delay introduced by WANem when emulating latency is few milliseconds (when delay is configured to 1ms, the measured roundtrip latency is about 4-5ms).
Is it possible to achieve lower (but not zero) latency more accurately? e.g., roundtrip of 2ms?
Thanks,
Alex
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Thanks for looking into this - sounds promising!
Does this mean that recompiling the image with this flag set might potentially solve the problem (and maybe even allow specifying sub-ms delays, which seems to be possible syntax-wise)? Anyway, looking forward to your update.
Thanks,
Alex
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
It seems that the minimal delay introduced by WANem when emulating latency is few milliseconds (when delay is configured to 1ms, the measured roundtrip latency is about 4-5ms).
Is it possible to achieve lower (but not zero) latency more accurately? e.g., roundtrip of 2ms?
Thanks,
Alex
To cut a long story short my investigation led me to a line in /boot/config-2.6.24.4 in the WANem cd which says
"# CONFIG_HIGH_RES_TIMERS is not set"
The CONFIG_HIGH_RES_TIMERS option is suppposed to enable high resolution timers.
Once this is set it shd be possible to get better accuracy. I am looking for an easy way to do this. Will post as soon as I get anything.
Regards,
M.K.Nambiar
Thanks for looking into this - sounds promising!
Does this mean that recompiling the image with this flag set might potentially solve the problem (and maybe even allow specifying sub-ms delays, which seems to be possible syntax-wise)? Anyway, looking forward to your update.
Thanks,
Alex
Hi!
Could you tell me what's the minimum latency that can be simulated by WANem v2.3?
Thanks a lot!
Marija