https://community.intel.com/t5/Software-Tuning-Performance/How-to-implement-a-256B-PCIe-Burst-Transfer-on-Intel/m-p/1366318#M8022 <P>Hi All,</P> <P>We are trying to transfer data between two memory regions through PCIe transactions. The goal is to transfer the largest possible size in a single burst to fully utilize the system bus and PCIe bus bandwidth. Our CPU&nbsp;model name is "i7-11700K".</P> <P>We have tried to transmit 64B through the core bus interface unit.</P> <P>&nbsp;</P> <LI-CODE lang="markup">_mm512_store_si512</LI-CODE> <P>&nbsp;</P> <P>Now we also want to try to transfer bigger sizes, like 256B or 512B etc, in a single burst.&nbsp;Could you please give some advice? It is best to provide some white papers or weblinks so that it can be implemented programmatically. Thank you very much.</P> Mon, 07 Mar 2022 10:02:08 GMT allen-zhuo 2022-03-07T10:02:08Z https://community.intel.com/t5/Software-Tuning-Performance/How-to-implement-a-256B-PCIe-Burst-Transfer-on-Intel/m-p/1366318#M8022 <P>Hi All,</P> <P>We are trying to transfer data between two memory regions through PCIe transactions. The goal is to transfer the largest possible size in a single burst to fully utilize the system bus and PCIe bus bandwidth. Our CPU&nbsp;model name is "i7-11700K".</P> <P>We have tried to transmit 64B through the core bus interface unit.</P> <P>&nbsp;</P> <LI-CODE lang="markup">_mm512_store_si512</LI-CODE> <P>&nbsp;</P> <P>Now we also want to try to transfer bigger sizes, like 256B or 512B etc, in a single burst.&nbsp;Could you please give some advice? It is best to provide some white papers or weblinks so that it can be implemented programmatically. Thank you very much.</P> Mon, 07 Mar 2022 10:02:08 GMT https://community.intel.com/t5/Software-Tuning-Performance/How-to-implement-a-256B-PCIe-Burst-Transfer-on-Intel/m-p/1366318#M8022 allen-zhuo 2022-03-07T10:02:08Z