Re: [dts] [PATCH V1] test_plan: add test plan of power pbf

["Yao, Lei A" <lei.a.yao@intel.com>]

> -----Original Message-----
> From: Ma, LihongX <lihongx.ma@intel.com>
> Sent: Tuesday, October 8, 2019 2:36 AM
> To: dts@dpdk.org
> Cc: Yao, Lei A <lei.a.yao@intel.com>; Ma, LihongX <lihongx.ma@intel.com>
> Subject: [dts][PATCH V1] test_plan: add test plan of power pbf
> 
> Signed-off-by: lihong <lihongx.ma@intel.com>
Acked-by: lei yao<lei.a.yao@intel.com>
> ---
>  test_plans/power_pbf_test_plan.rst | 191
> +++++++++++++++++++++++++++++++++++++
>  1 file changed, 191 insertions(+)
>  create mode 100644 test_plans/power_pbf_test_plan.rst
> 
> diff --git a/test_plans/power_pbf_test_plan.rst
> b/test_plans/power_pbf_test_plan.rst
> new file mode 100644
> index 0000000..2ec3e56
> --- /dev/null
> +++ b/test_plans/power_pbf_test_plan.rst
> @@ -0,0 +1,191 @@
> +.. Copyright (c) <2019>, Intel Corporation
> +   All rights reserved.
> +
> +   Redistribution and use in source and binary forms, with or without
> +   modification, are permitted provided that the following conditions
> +   are met:
> +
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> +     notice, this list of conditions and the following disclaimer.
> +
> +   - Redistributions in binary form must reproduce the above copyright
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> +     the documentation and/or other materials provided with the
> +     distribution.
> +
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> +     from this software without specific prior written permission.
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> +   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
> ADVISED
> +   OF THE POSSIBILITY OF SUCH DAMAGE.
> +
> +=================================================
> +Power PBF Tests
> +=================================================
> +PBF(Priority Base Frequency) is new power feature on some Intel CPU
> +SKU. This feature can support some core in core list have garenteed
> +higher base frequency DPDK start support this feature from 19.05
> +
> +Preparation work
> +================
> +Check the SKU of Processor: 6230N, 6252N and 5218N can support this
> +feature 1. Turn on Speedstep option in BIOS 2. Set C-State to C0/C1 3.
> +Turn on Turbo in BIOS 4. Turn on PBF in BIOS 5. Set HW Pstate to
> +"Native Mode without Legacy Support"
> +6. Turn on RAPL Prioritization
> +7. Modprobe msr module
> +8. DON'T set intel_pstate to disable in grub 9. Turn on the debug log
> +for DPDK power lib, CONFIG_RTE_LIBRTE_POWER_DEBUG=y
> +
> +Test Case1 : Check High Priority Core Can Be Recognized By Power Lib
> +=========================================================
> ===========
> +Step 1. Create powermonitor fold for::
> +
> +    Create power monitor channel folder, /tmp/powermonitor, give
> + permission for read and write
> +
> +Step 2. Compile DPDK with Power Lib debug info on, then Luanch VM
> power manager sample::
> +
> +    ./examples/vm_power_manager/build/vm_power_mgr -l 1-4 -n 4
> + --file-prefix=power --no-pci
> +
> +    Check two different base_max frequency will be shown in log, for
> example on Intel 6230N Processor:
> +    The log will be like as following
> +    POWER: power_get_available_freqs: sys min 800000, sys max 3900000,
> base_max 2300000
> +    POWER: power_get_available_freqs: sys min 800000, sys max 3900000,
> + base_max 2700000
> +
> +    For each core, get following 3 frequency item, cross check frequency in
> the VM_power out put log:
> +    sys_min=sys/devices/system/cpu/cpu{}/cpufreq/cpuinfo_min_freq
> +    sys_max=sys/devices/system/cpu/cpu{}/cpufreq/cpuinfo_max_freq
> +    base_max=sys/devices/system/cpu/cpu{}/cpufreq/base_frequency
> +
> +    Take Intel 6230N Processor as example:
> +    sys_min=800000
> +    sys_max=3900000
> +    base_max=2700000(high priority Core) base_max=2300000 (Normal Core)
> +
> +    The high priority core has max frequency at 27000000
> +    Normal core has max frequency at 2300000
> +
> +Test Case2 : CPU MIN and MAX Freq Test for the High Priority Core
> +=========================================================
> ========
> +Step 1. Create powermonitor fold for::
> +
> +    Create monitor channel folder, /tmp/powermonitor, give permission
> + for read and write
> +
> +Step 2. Compile DPDK with Power Lib debug info on, then aunch VM power
> manager sample::
> +
> +    ./examples/vm_power_manager/build/vm_power_mgr -l 1-4 -n 4
> + --file-prefix=power --no-pci
> +
> +Step 3. Prepare different command in JSON format::
> +
> +    From Test Case1, can get the high priority core list. We pick one core from
> this list
> +    Command JSON file template:
> +    {"instruction": {
> +    "name": "policy1",
> +    "command": "power",
> +    "unit": "SCALE_MIN",
> +    }}
> +
> +Step 4: Send different command to power sample, then check the
> frequency::
> +
> +    Command Steps: ENABLE_TURBO-> SCALE_MAX-> SCALE_DOWN->
> SCALE_MIN
> +    Send action JSON file to vm_power_mgr's fifo channel, each core will
> have it's own channel:
> +    cat command.json >/tmp/powermonitor/fifo{core_number}
> +
> +    Check the CPU frequency is changed accordingly in previous list by
> following method:
> +    min=sys/devices/system/cpu/cpu{}/cpufreq/scaling_min_freq
> +    max=sys/devices/system/cpu/cpu{}/cpufreq/scaling_max_freq
> +    Step SCALE_MAX: min=max=sys_max
> +    Step SCALE_DOWN: min=max=base_max
> +    Step SCALE_MIN: min=max=sys_min
> +
> +
> +    More info about the command:
> +    :"SCALE_MAX": Scale frequency of this core to maximum
> +    :"SCALE_MIN": Scale frequency of this core to minimum
> +    :"SCALE_UP": Scale up frequency of this core
> +    :"SCALE_DOWN": Scale down frequency of this core
> +    :"ENABLE_TURBO": Enable Turbo Boost for this core
> +    :"DISABLE_TURBO": Disable Turbo Boost for this core
> +
> +Test Case3 : Check "DISABLE_TURBO" Action When Core is In Turbo Status
> +for High Priority Core
> +=========================================================
> ==============
> +=======================
> +Step 1. Create powermonitor fold for::
> +
> +   Create monitor channel folder, /tmp/powermonitor, give permission
> + 777
> +
> +Step 2. Compile DPDK with Power Lib debug info on, then launch VM power
> manager sample::
> +
> + ./examples/vm_power_manager/build/vm_power_mgr -l 1-4 -n 4
> + --file-prefix=power --no-pci
> +
> +Step 3. Prepare Several command in JSON format then send it to the fifo
> channel for the high priority core::
> +
> +    {"instruction": {
> +    "name": "policy2",
> +    "command": "power",
> +    "unit": "SCALE_MIN",
> +    }}
> +    cat command.json >/tmp/powermonitor/fifo{core_number}
> +
> +    Command Steps: ENABLE_TURBO -> SCALE_MAX ->DISABLE_TURBO
> +
> +Step 4. Check the CPU frequency will be set to No turbo max frequency
> when turbo is off::
> +
> +        min=sys/devices/system/cpu/cpu{}/cpufreq/scaling_min_freq
> +        max=sys/devices/system/cpu/cpu{}/cpufreq/scaling_max_freq
> +        Check point of Step SCALE_MAX: min=max=sys_max
> +        Check point of Step DISABLE_TURBO: min=max=base_max
> +
> +
> +Test Case4:  Check Distributor Sample Use High Priority Core as
> +Distribute Core
> +=========================================================
> ==============
> +=============== Step 1. Get the Priority core list on DUT in test case
> +1::
> +
> +    For example:
> +    6,7,13,14,15,16,21,26,27,29,36,38
> +    On one Intel 6230N Processor
> +    Note: the high base frequency core location of each processor is different.
> +
> +Step 2. Launch distributor with 1 priority core, check the high priority core
> will be picked as the distributor core::
> +
> +    Two worker:
> +    ./distributor_app -l 1-6  -n 4 -- -p 0x1
> +
> +    Check the high priority core is assigned as distributor core in log, for
> example:
> +    "Core 6 acting as distributor core."
> +
> +Test Case5:  Check Distributor Sample Will use High priority core for
> +distribute core and rx/tx core
> +=========================================================
> ==============
> +============================= Step 1. Get the Priority core list on
> DUT
> +in test case 1::
> +
> +    Using pbf.py to check, or check from kernel
> +    For example:
> +    6,7,13,14,15,16,21,26,27,29,36,38
> +    On one intel 6230N Processor
> +    Note: the high base frequency core location of each processor are
> different.
> +
> +Step 2. Launch distributor with 3 priority core, check the high
> +priority core will be picked as the distributor core, rx and tx core::
> +
> +    For example, the high priority core is" 6,7 13"
> +    ./distributor_app -l 1-6,7,13  -n 4 -- -p 0x1
> +
> +Step 3. Check the high priority core is assigned as distributor core in log, for
> example::
> +
> +   Distributor on priority core 6
> +
> +Step 4. Check the high priority core are assigned as tx/rx core in log, for
> example::
> +
> +   Core 13 doing packet TX.
> +   Core 7 doing packet RX.
> --
> 2.7.4