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| author |   Peter Mikus <pmikus@cisco.com> | 2019-08-09 07:48:43 +0000 |
|---|---|---|
| committer |   Tibor Frank <tifrank@cisco.com> | 2019-08-09 08:29:19 +0000 |
| commit | ce1c52b1fd27d3e2b6c4909219fa98418565ba61 (patch) | |
| tree | 80d95c9987fbf21e0d41507b4740034562912812 /docs/report/introduction/methodology_kvm_vms_vhost_user.rst | |
| parent | d6c832b02ac7d3073dd8651b089a72ec8240b183 (diff) | |
DOC: rls1908 static content
Signed-off-by: Peter Mikus <pmikus@cisco.com>
Change-Id: Ia0778acc543a51fe85b8a75162f12905badaa382
Diffstat (limited to 'docs/report/introduction/methodology_kvm_vms_vhost_user.rst')
| -rw-r--r-- | docs/report/introduction/methodology_kvm_vms_vhost_user.rst | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/docs/report/introduction/methodology_kvm_vms_vhost_user.rst b/docs/report/introduction/methodology_kvm_vms_vhost_user.rst index 79f1134881..e6a98596da 100644 --- a/docs/report/introduction/methodology_kvm_vms_vhost_user.rst +++ b/docs/report/introduction/methodology_kvm_vms_vhost_user.rst @@ -9,25 +9,7 @@ to the QEMU binary can be adjusted in `Constants.py`. FD.io CSIT performance lab is testing VPP vhost-user with KVM VMs using following environment settings: -- Tests with varying QEMU virtio queue (a.k.a. vring) sizes: [vr1024] - 1024 descriptors to optimize for packet throughput. -- Tests with varying Linux :abbr:`CFS (Completely Fair Scheduler)` - settings: i) [cfs] default settings, ii) [cfsrr1] CFS RoundRobin(1) - policy applied to all data plane threads handling test packet path - including all VPP worker threads and all QEMU testpmd poll-mode - threads. -- Resulting test cases are all combinations with [vr1024] and - [cfs,cfsrr1] settings. -- Adjusted Linux kernel :abbr:`CFS (Completely Fair Scheduler)` - scheduler policy for data plane threads used in CSIT is documented in - `CSIT Performance Environment Tuning wiki - <https://wiki.fd.io/view/CSIT/csit-perf-env-tuning-ubuntu1604>`_. - -Testing with different CFS settings enables verifying the impact of -making VPP and VM data plane threads less susceptible to other Linux OS -system tasks hijacking CPU cores running those data plane threads. - -CSIT supports two types of VMs: +CSIT supports two types of VMs: - **Image-VM**: used for all functional, VPP_device, and regular performance tests except NFV density tests. @@ -83,10 +65,10 @@ Example of custom init script for the kernel-VM: mount -t hugetlbfs -o "rw,relatime,pagesize=2M" hugetlbfs /dev/hugepages echo 0000:00:06.0 > /sys/bus/pci/devices/0000:00:06.0/driver/unbind echo 0000:00:07.0 > /sys/bus/pci/devices/0000:00:07.0/driver/unbind - echo uio_pci_generic > /sys/bus/pci/devices/0000:00:06.0/driver_override - echo uio_pci_generic > /sys/bus/pci/devices/0000:00:07.0/driver_override - echo 0000:00:06.0 > /sys/bus/pci/drivers/uio_pci_generic/bind - echo 0000:00:07.0 > /sys/bus/pci/drivers/uio_pci_generic/bind + echo vfio-pci > /sys/bus/pci/devices/0000:00:06.0/driver_override + echo vfio-pci > /sys/bus/pci/devices/0000:00:07.0/driver_override + echo 0000:00:06.0 > /sys/bus/pci/drivers/vfio-pci/bind + echo 0000:00:07.0 > /sys/bus/pci/drivers/vfio-pci/bind $vnf_bin poweroff -f |