As I recall, VPP only looks for 2MB pages; 1GB would be huge and wasteful. A quick search reminded me of this thread, which may be instructive for you: https://lists.fd.io/pipermail/vpp-dev/2017-September/006364.html
Chris. From: wanghongbo [mailto:wanghon...@kingsoft.com] Sent: Tuesday, November 21, 2017 7:41 To: Luke, Chris <chris_l...@cable.comcast.com> Cc: vpp-dev@lists.fd.io Subject: 答复: [vpp-dev] hi vpp-dev, another question about hugepage Hi, chris: Can you spare a few minutes to help me? I have config the 1GB hugepages . But vpp still used the 2M hugepage. I want to know configurations How VPP run with 1GB huge pages. [root@localhost ~]# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.10.0-693.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap default_hugepagesz=1G hugepagesz=1G hugepages=64 iommu=pt intel_iommu=on isolcpus=0-11 rhgb quiet /usr/bin/vpp[1815]: clib_sysfs_read: open `/sys/devices/system/node/node0/hugepages/hugepages-2048kB/free_hugepages': No such file or directory /usr/bin/vpp[1815]: clib_sysfs_read: open `/sys/devices/system/node/node1/hugepages/hugepages-2048kB/free_hugepages': No such file or directory Thanks wanghongbo 发件人: Luke, Chris [mailto:chris_l...@comcast.com] 发送时间: 2017年11月21日 10:31 收件人: WANGHONGBO [王洪波] 主题: RE: [vpp-dev] hi vpp-dev, another question about hugepage I understand too, I am just trying to make it easier for people to answer your questions and to make it useful for others in future who can search 😊 Chris. From: wanghongbo [mailto:wanghon...@kingsoft.com] Sent: Monday, November 20, 2017 21:14 To: Luke, Chris <chris_l...@cable.comcast.com<mailto:chris_l...@cable.comcast.com>> Subject: 答复: [vpp-dev] hi vpp-dev, another question about hugepage OK, understand. I just want to list more information for question. Thank you. 发件人: Luke, Chris [mailto:chris_l...@comcast.com] 发送时间: 2017年11月20日 22:14 收件人: WANGHONGBO [王洪波]; vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> 主题: RE: [vpp-dev] hi vpp-dev, another question about hugepage Hello, Apologies for not answering your query, however is there any chance you could stop pasting images all the time? Cut-and-paste will suffice. Including images will routinely trip the list-max-message-size limits. Besides, text is searchable and images are not, thus limiting the usefulness to future generations. Thanks, Chris. From: vpp-dev-boun...@lists.fd.io<mailto:vpp-dev-boun...@lists.fd.io> [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of wanghongbo Sent: Monday, November 20, 2017 9:11 AM To: vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> Subject: [vpp-dev] hi vpp-dev, another question about hugepage Hi vpp-dev: I configure the 1G hugepage in /boot/grub2/grub.cfg and split cpu core. Then I configure the /etc/sysctl.d/80-vpp.conf. After reboot the kernel was crash. How can I configure the vpp hugepage? Thank you very much.
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