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docs: Update documentation vhost-user-blk-testing.md

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Updated the obsoleted path of `vhost` the in spdk folder and fixed some
formatting issues.

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2021-05-03 14:43:18 -07:00 committed by Sebastien Boeuf
parent 7e0ccce225
commit db66cb6e9b
1 changed files with 30 additions and 16 deletions
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docs/vhost-user-blk-testing.md
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@ -35,38 +35,52 @@ Here are some good references for detailing them.
## Test environment ## Test environment
The below test environment is based on ubuntu release(16.04.1 LTS), as for other system, please check related document. The below test environment is based on Ubuntu release (20.04.1 LTS), as for other system, please check related documents.
The test runs with multiple queue (MQ) support enabled, using 4 queues defined for both SPDK and the virtual machine. This test runs with multiple queue (MQ) support enabled, using 4 queues defined for both SPDK and the virtual machine.
Here are the details on how the test can be run. Here are the detailed instructions.
### The hugepages settings in host linux ### The hugepages settings on the host
Add "default_hugepagesz=1G hugepagesz=1G hugepages=2" into host linux cmdline. Allocate enough persistent huge pages (e.g. 2GiB) on the host:
As for how to change Ubuntu linux cmdline in grub file, please ref below link:
https://www.ostechnix.com/configure-grub-2-boot-loader-settings-ubuntu-16-04/ ```bash
reboot Ubuntu # Assume the default hugepage size is 2MiB
sudo mount -t hugetlbfs -o pagesize=1G none /dev/hugepages echo 1024 | sudo tee /proc/sys/vm/nr_hugepages
# Confirm the value of "Hugepagesize" and "HugePages_Total"
cat /proc/meminfo | grep -i huge
```
### Download the SPDK code ### Download the SPDK code
```bash
git clone https://github.com/spdk/spdk git clone https://github.com/spdk/spdk
cd spdk cd spdk
git submodule update --init git submodule update --init
```
### Create the build dep ### Create the build dep
./scripts/pkgdep.sh
### Build spdk ```bash
./scripts/pkgdep.sh
```
### Build SPDK
```bash
./configure ./configure
make make
```
### Set the SPDk environment ### Set the SPDK environment
```bash
sudo HUGEMEM=2048 scripts/setup.sh sudo HUGEMEM=2048 scripts/setup.sh
sudo ./app/vhost/vhost -S /var/tmp -s 1024 -m 0x3 & sudo ./build/bin/vhost -S /var/tmp -s 1024 -m 0x3 &
```
### Create 512M block device ### Create 512M block device
```bash
sudo scripts/rpc.py bdev_malloc_create 512 512 -b Malloc0 sudo scripts/rpc.py bdev_malloc_create 512 512 -b Malloc0
sudo scripts/rpc.py vhost_create_blk_controller --cpumask 0x1 vhost.1 Malloc0 sudo scripts/rpc.py vhost_create_blk_controller --cpumask 0x1 vhost.1 Malloc0
```
_Launch the VM_ ### Launch the VM
VMs run in client mode. They connect to the socket created by the `dpdkvhostuser` in the SPDK backend. VMs run in client mode. They connect to the socket created by the `dpdkvhostuser` in the SPDK backend.
```bash ```bash
@ -89,9 +103,9 @@ login in guest
# Use lsblk command to find out vhost-user-blk device # Use lsblk command to find out vhost-user-blk device
lsblk lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 2.2G 0 disk vda 252:0 0 2.2G 0 disk
├─vda1 252:1 0 2.1G 0 part / ├─vda1 252:1 0 2.1G 0 part /
├─vda14 252:14 0 4M 0 part ├─vda14 252:14 0 4M 0 part
└─vda15 252:15 0 106M 0 part /boot/efi └─vda15 252:15 0 106M 0 part /boot/efi
vdb 253:16 0 512M 0 disk vdb 253:16 0 512M 0 disk