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</o:shapelayout></xml><![endif]--></head><body link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello, I am testing the QoS Schedule sample app with a traffic generator and I notice that the latency of high priority traffic class (TC 0, for example) increases when the load of the NIC increase. With that being said, may I ask is there anyway to maintain the latency of high priority traffic low, when still have high throughput on other traffic classes?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>For more information, I am testing the QoS app with 512 streams generated from a traffic generator (16 queues x 32 pipes), the traffic of TC 0, pipe 0 is generated with low packet rate, all other streams are at high packet rate, 100% line rate is used in total.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>My expectation is:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Pipe 0:<o:p></o:p></span></p><p class=MsoNormal>tc 0: low rate --> low latency<o:p></o:p></p><p class=MsoNormal>tc 1: high rate --> high latency<o:p></o:p></p><p class=MsoNormal>.<o:p></o:p></p><p class=MsoNormal>.<o:p></o:p></p><p class=MsoNormal>.<o:p></o:p></p><p class=MsoNormal>tc 12: high rate --> high latency<span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Long Le<o:p></o:p></span></p></div></body></html>