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Tag: intel

How to use 1GB hugepages in DPDK?

DPDK has two hugepage sizes:2MB hugepages and 1GB hugepages. I run the command below to use the 1GB hugepages: However, when I run the command cat /proc/meminfo: It still seems to use the 2MB hugepages. What should I do to use the 1GB hugepages? Answer The Hugepagesize field of /proc/meminfo is the default hu…

intel SPDK ioat example fail to run

I am new in the intel SPDK and meet some problem when I run the example code. I setup the BIOS as this page said. Intel® Hyper-Threading Technology off Intel SpeedStep® technology enabled Intel® Turbo Boost Technology disabled then I git clone from this page and run all the command. The test command ./test/un…

libva version error on yocto build

I was trying to build a Yocto Image for intel processor. I downloaded the latest source code of poky and then clone the meta-intel branch and added it to bblayers.conf file. I started build with the following command And got the following error: I have the following recipe in this folder meta/recipes-graphics…

Which perf events can use PEBS?

I want to understand which events can have the precise modifier on my CPU (Sandy Bridge). Intel Software Developer’s Manual (Table 18-32. PEBS Performance Events for Intel Microarchitecture Code Name Sandy Bridge) contains only the following events: INST_RETIRED, UOPS_RETIRED, BR_INST_RETIRED, BR_MISP_R…