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<p class="MsoNormal">Forgive my top-posting email client.<o:p></o:p></p>
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<p class="MsoNormal">Yes, you can deploy the low latency profile for worker nodes and get the rt kernel.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">No, I’m not aware of anything in StarlingX specific to video streaming. I wouldn’t even know what’s needed, perhaps there are folks in the community who have that background.<o:p></o:p></p>
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<p class="MsoNormal"> brucej<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> open infra <openinfradn@gmail.com> <br>
<b>Sent:</b> Thursday, February 18, 2021 7:51 AM<br>
<b>To:</b> Jones, Bruce E <bruce.e.jones@intel.com><br>
<b>Cc:</b> starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> Re: [Starlingx-discuss] How low latency implemented in STX?<o:p></o:p></p>
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<p class="MsoNormal">Hi <o:p></o:p></p>
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<p class="MsoNormal">On Thu, Feb 18, 2021 at 8:50 PM Jones, Bruce E <<a href="mailto:bruce.e.jones@intel.com">bruce.e.jones@intel.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">There are several low latency features in StarlingX, depending on what you mean by low latency.<o:p></o:p></p>
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<p class="MsoNormal">I just asked to understand as 'ultra-low latency' feature is mentioned in the stx web site.
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">StarlingX supports the rt-linux kernel, which significantly improves kernel scheduling and reduces rt application latency.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So, we use low latency profile with RT kernel?<o:p></o:p></p>
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<p class="MsoNormal">Or customized profile that specific to stx?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It also supports OVS DPDK, which greatly reduces network packet delivery latency, which I believe is only supported today in Neutron. There is work in progress in the communitfeature
y to enable DPDK in Kubernetes but AFAIK that work has not yet been picked up by StarlingX.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks for sharing this information.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Could be a dumb question:<o:p></o:p></p>
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<p class="MsoNormal">Does it provide any specific protocols to improve the performance of video streaming etc?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> brucej<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b> open infra <<a href="mailto:openinfradn@gmail.com" target="_blank">openinfradn@gmail.com</a>>
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<b>Sent:</b> Thursday, February 18, 2021 7:12 AM<br>
<b>To:</b> <a href="mailto:starlingx-discuss@lists.starlingx.io" target="_blank">
starlingx-discuss@lists.starlingx.io</a><br>
<b>Subject:</b> [Starlingx-discuss] How low latency implemented in STX?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I would like to know how low latency implemented in StarlingX.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">- Is it implemented only in starlingx itself
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">or
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is it implemented in Kubernetes shipped with starlingx?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Any optimization has been done to Neutron (under OpenStack) in order to achieve low latency with virtualized networking?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">or do we use exact same upstream OpenStack components under StarlingX?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regards,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Danishka<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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