[dts] [‘dts’ 1/3] Add multiple pthread test plan

[Xu, HuilongX]

Acked-by: huilong xu <huilongx.xu at intel.com>

> -----Original Message-----
> From: Tu, LijuanX A
> Sent: Wednesday, September 02, 2015 3:16 PM
> To: dts at dpdk.org
> Cc: Xu, HuilongX; Tang, HaifengX; Tu, LijuanX A
> Subject: [‘dts’ 1/3] Add multiple pthread test plan
> 
> Signed-off-by: Lijuan Tu <lijuanx.a.tu at intel.com>
> ---
>  test_plans/multiple_pthread_test_plan.rst | 117
> ++++++++++++++++++++++++++++++
>  1 file changed, 117 insertions(+)
>  create mode 100644 test_plans/multiple_pthread_test_plan.rst
> 
> diff --git a/test_plans/multiple_pthread_test_plan.rst
> b/test_plans/multiple_pthread_test_plan.rst
> new file mode 100644
> index 0000000..ede3daa
> --- /dev/null
> +++ b/test_plans/multiple_pthread_test_plan.rst
> @@ -0,0 +1,117 @@
> +..f
> +  <COPYRIGHT_TAG>
> +
> +===============================
> +Multiple Pthread Test Instructions
> +===============================
> +
> +Cgroup Function Test
> +--------------------------
> +
> +Description
> +-----------
> +
> +This test is a basic multiple pthread test which demonstrates the basics
> of control group. Cgroup is a Linux kernel feature that limits, accounts
> for and isolates the resource usage, like CPU, memory, disk I/O, network,
> etc of a collection of processes. Now, it's focus on the CPU usage.
> +
> +Prerequisites
> +-------------
> +Support igb_uio driver, kernel is 3.11+. Use "modeprobe uio" "modprobe
> igb_uio" and then use "./tools/dpdk_nic_bind.py --bind=igb_uio
> device_bus_id" to bind the ports.
> +
> +Assuming that an Intel� DPDK build has been set up and the testpmd
> +applications have been built.
> +
> +Os required: Linux and FreeBSD
> +
> +Test Case 1: Basic operation
> +--------------------------
> +
> +To run the application, start the testpmd with the lcoress all running
> with threads and also the unique core assigned, command as follows::
> +
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='0 at 8,(4-
> 5)@9' -n 4 -- -i --portmask=0xc
> +		EAL: Master lcore 0 is ready (tid=ffd4900;cpuset=[8])
> +		EAL: lcore 4 is ready (tid=873e7700;cpuset=[9])
> +		EAL: lcore 5 is ready (tid=873e7700;cpuset=[9])
> +To check the output, we shall make sure the lcore are init on the correct
> cpu. e.g. Duing INIT log we can found below:
> +
> +The process should start successfully and display a command prompt as
> follows::
> +
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='0 at 8,(4-
> 5)@9' -n 4 -- -i --portmask=0xc
> +		Checking link statuses...
> +		Port 0 Link Up - speed 10000 Mbps - full-duplex
> +		Port 1 Link Up - speed 10000 Mbps - full-duplex
> +		Done
> +
> +Start the packet forwarding as follows
> +
> +		testpmd>set fwd mac
> +
> +Before running the test, make sure the core is a unique one otherwise,
> the throughput will be floating on different cores, another thing is to
> make sure all the logic cores are running, command as follows:
> +
> +		testpmd>set corelist 4,5
> +
> +pay attention that set corelist need to be configured before start,
> otherwise, it will not work
> +
> +		testpmd>start
> +
> +		testpmd>show config fwd
> +
> +Using the command to find the threads that's running, as follows:
> +
> +		ps -C testpmd -L -opid,tid,%cpu,psr,args
> +
> +Result as follows:
> +
> +	   PID    TID %CPU PSR COMMAND
> +	179459 179459  0.2   8 ./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores=0 at 8,(4-5)@9 -n 4 -- -i --portmask=0xc
> +	179459 179460  0.0  21 ./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores=0 at 8,(4-5)@9 -n 4 -- -i --portmask=0xc
> +	179461  0.0  21 ./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores=0 at 8,(4-5)@9 -n 4 -- -i --portmask=0xc
> +	179459 179462 80.4   9 ./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores=0 at 8,(4-5)@9 -n 4 -- -i --portmask=0xc
> +	179459 179463  0.0   9 ./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores=0 at 8,(4-5)@9 -n 4 -- -i --portmask=0xc
> +
> +You will see that there are two threads running on core 9. The last 2
> threads are running threads, their TID will be assigned to the tasks in
> the folder thread0.
> +
> +		cd /sys/fs/cgroup/cpu/dpdk/thread0
> +		echo 179462 > tasks
> +		echo 179463 > tasks
> +
> +Assgined the percentage of cpu these two threads occupy as follows:
> +
> +		echo 10000 > cpu.cfs_quota_us
> +
> +This means the two threads will totally occupy 10% of the CPU and each 5%.
> +
> +
> +Boundary Test
> +-------------------------
> +
> +Test Case 2: Positive Test
> +---------------------------------------------
> +
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='0 at 8,(4-
> 5)@(8-11)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='1,2@(0-
> 4,6),(3-4,6)@5,(7,8)' -n 4 -- -i --txfreet=32 --rxfreet=32 --
> txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores='(0,CONFIG_RTE_MAX_LCORE-1)@(4,5)' -n 4 -- -i --txfreet=32 --
> rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,64-
> 66)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='2-5,6,7-9'
> -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='2, (3-5)@
> 3' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +
> +
> +Test Case 3: Negative Test
> +---------------------------------------------------
> +
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0-,4-
> 7)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(-1,4-
> 7)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,7-
> 4)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-7-
> 9)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --
> lcores='(0,abcd)@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --
> txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-
> 7)@(1-,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-7)@(-
> 1,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-
> 7)@(4,5-8-9)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-
> 7)@(abc,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-
> 7)@(4,xyz)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --
> txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0,4-
> 7)=(8,9)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='2,3 at 4,(0-
> 1,,4))' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='[0-,4-
> 7]@(4,5)' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='(0-,4-
> 7)@[4,5]' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='3-4 at 3,2 at 5-
> 6' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='2,,3''2--
> 3' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> +		./x86_64-native-linuxapp-gcc/app/testpmd --lcores='2,,,3''2--
> 3' -n 4 -- -i --txfreet=32 --rxfreet=32 --txqflags=0xf01 --txrst=32
> --
> 1.9.3