https://community.nxp.com/t5/Layerscape/CPU-is-high-load-when-received-heavy-load-UDP-packets/m-p/1277925#M8014 <P>Dear NXP engineers,</P><P>I'm developing network device base on LX2160A chip, now I'm facing the issue when system receives heavy load UDP packets. Using perf tool&nbsp; for testing and bind it to one core, I can see that the CPU consumption for iperf is 62%, and you can see it on the image it's really high load on System time.</P><P>May I know this issue is normal for the platform LX2160A?</P><P>What should I do to improve CPU consumption in this case?</P><P>Hardware: LX2160A-RDB reference design board<BR />BSP: LSDK 20.04_290520<BR />OS: Ubuntu 18.04</P><P>Thanks.</P><P>Ta Quoc Viet</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture.PNG" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144911i47B274A8459C0B8B/image-size/large?v=v2&amp;px=999" role="button" title="Capture.PNG" alt="Capture.PNG" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture1.PNG" style="width: 829px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144912i1C69EBE5C72779B4/image-size/large?v=v2&amp;px=999" role="button" title="Capture1.PNG" alt="Capture1.PNG" /></span></P> Tue, 18 May 2021 03:49:07 GMT taquocviet 2021-05-18T03:49:07Z https://community.nxp.com/t5/Layerscape/CPU-is-high-load-when-received-heavy-load-UDP-packets/m-p/1277925#M8014 <P>Dear NXP engineers,</P><P>I'm developing network device base on LX2160A chip, now I'm facing the issue when system receives heavy load UDP packets. Using perf tool&nbsp; for testing and bind it to one core, I can see that the CPU consumption for iperf is 62%, and you can see it on the image it's really high load on System time.</P><P>May I know this issue is normal for the platform LX2160A?</P><P>What should I do to improve CPU consumption in this case?</P><P>Hardware: LX2160A-RDB reference design board<BR />BSP: LSDK 20.04_290520<BR />OS: Ubuntu 18.04</P><P>Thanks.</P><P>Ta Quoc Viet</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture.PNG" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144911i47B274A8459C0B8B/image-size/large?v=v2&amp;px=999" role="button" title="Capture.PNG" alt="Capture.PNG" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Capture1.PNG" style="width: 829px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144912i1C69EBE5C72779B4/image-size/large?v=v2&amp;px=999" role="button" title="Capture1.PNG" alt="Capture1.PNG" /></span></P> Tue, 18 May 2021 03:49:07 GMT https://community.nxp.com/t5/Layerscape/CPU-is-high-load-when-received-heavy-load-UDP-packets/m-p/1277925#M8014 taquocviet 2021-05-18T03:49:07Z https://community.nxp.com/t5/Layerscape/CPU-is-high-load-when-received-heavy-load-UDP-packets/m-p/1280284#M8046 <P>NXP Technical Support will contact you with respect to this issue by e-Mail.<BR />Please be informed that all performance-related materials require NDA and<BR />cannot be discussed in a public Forum.</P> <P>Best Regards,<BR />Platon</P> <P>&nbsp;</P> Fri, 21 May 2021 09:26:01 GMT https://community.nxp.com/t5/Layerscape/CPU-is-high-load-when-received-heavy-load-UDP-packets/m-p/1280284#M8046 bpe 2021-05-21T09:26:01Z