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<p class="MsoNormal">Hi Rajasekhar, Power Management API can “put the CPU into optimized power state and monitor the Ethernet PMD RX descriptor address, waking the CPU up whenever there’s new traffic”.<o:p></o:p></p>
<p class="MsoNormal">Please take a look at the rte_power_monitor() and dpdk-l3fwd-power application example to see if it works for you. What platform do you use? It is only supported on recent Intel CPUs and ARMs.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Alex<span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Rajasekhar Pulluru <pullururajasekhar@gmail.com>
<br>
<b>Sent:</b> March 10, 2023 15:57<br>
<b>To:</b> dev@dpdk.org<br>
<b>Subject:</b> Dpdk packet reception<o:p></o:p></span></p>
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<p class="MsoNormal">Hi Team,<o:p></o:p></p>
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<p class="MsoNormal">Would like to know if dpdk has a select(fd)/epoll(fd) like mechanism to wake-up the application (say rx-pthread) asynchronously upon packet reception without enabling rxq interrupts? <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I can't afford to lose a cpu-core polling continuously to check for packets using rte_eth_rx_burst.And I only have 1 core to receive packets from multiple ports.I don't want to use usleep of fixed timeout between rte_eth_rx_burst api invocation,
as it potentially could lead to packets being rx-missed in 1 or more ports.<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 & Regards,<o:p></o:p></p>
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<p class="MsoNormal">Rajasekhar<o:p></o:p></p>
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