From d0de8ee64a0768fd5332280f92b877b56d8c3f70 Mon Sep 17 00:00:00 2001 From: claudex Date: Tue, 24 Sep 2019 18:52:37 +0200 Subject: [PATCH] Replace "sudo echo >" with "echo | sudo tee" (#821) "sudo echo > " will not work as the current shell will make the redirection and it doen't have the root privileges --- source/guides/network/dpdk.rst | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/source/guides/network/dpdk.rst b/source/guides/network/dpdk.rst index 5b1ccc65..05c547e9 100644 --- a/source/guides/network/dpdk.rst +++ b/source/guides/network/dpdk.rst @@ -144,14 +144,14 @@ packet buffers. .. code-block:: bash - sudo echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages + echo 1024 | sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages #. Allocate pages on NUMA machines. .. code-block:: bash - sudo echo 1024 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages - sudo echo 1024 > /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages + echo 1024 | sudo tee /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages + echo 1024 | sudo tee /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages #. Make memory available for DPDK. @@ -302,10 +302,10 @@ machines control the NICs on the host. .. code-block:: bash - sudo echo "8086 1521" > /sys/bus/pci/drivers/pci-stub/new_id - sudo echo "0000:03:00.0" > /sys/bus/pci/drivers/igb/unbind - sudo echo "0000:03:00.0" > /sys/bus/pci/drivers/pci-stub/bind - sudo echo "8086 1521" > /sys/bus/pci/drivers/pci-stub/remove_id + echo "8086 1521" | sudo tee /sys/bus/pci/drivers/pci-stub/new_id + echo "0000:03:00.0" | sudo tee /sys/bus/pci/drivers/igb/unbind + echo "0000:03:00.0" | sudo tee /sys/bus/pci/drivers/pci-stub/bind + echo "8086 1521" | sudo tee /sys/bus/pci/drivers/pci-stub/remove_id #. Assign the unbound NICs to the KVM virtual machine (guest). Modify the :file:`start_qemu.sh` script in `qemu-system-x86_64` arguments, and