[Bloat] low latency workshop
Dave Taht
dave.taht at gmail.com
Wed Jun 19 17:27:00 EDT 2013
I was trying to find the isoc/rite low latency workshop info via
google today and stumbled across a competing event in london and a
whole website dedicated to the latency issues in the trading industry.
This talk
http://low-latency.com/audio/london-low-latency-summit-2013-workshop-low-latency-application-engineering
had slide 18 showing the enormous improvement in from-userspace
timestamp fetching behavior in linux - from 637ns for CLOCK_REALTIME
in 2.6.27, to 35ns in linux 3.5.4...
Based on some old scars I was leery of using timestamping in userspace
for some tasks. No longer.
There are also some boards that look useful for analyzing hard
networking stuff in detail mentioned.
--
Dave Täht
Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html
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