Out of curiosity, I looked and found <TOP>/src/plugins/dpdk/device/init.c that appears to want to support both sizes. I won't try to work through the code, but perhaps it is just a matter of configuring things so that variable use_1g remains 1 and use_2m gets set to 0. Function is dpdk_config(...)
Burt On Tue, Nov 21, 2017 at 10:03 AM, Luke, Chris <chris_l...@comcast.com> wrote: > 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 > <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 > <wanghon...@kingsoft.com>] > *Sent:* Monday, November 20, 2017 21:14 > *To:* Luke, Chris <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 > <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 > *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 > <vpp-dev-boun...@lists.fd.io>] *On Behalf Of *wanghongbo > *Sent:* Monday, November 20, 2017 9:11 AM > *To:* 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. > > > > _______________________________________________ > vpp-dev mailing list > vpp-dev@lists.fd.io > https://lists.fd.io/mailman/listinfo/vpp-dev >
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