From patchwork Wed May 24 13:30:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tadhg Kearney X-Patchwork-Id: 127328 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0AA1D42B8E; Wed, 24 May 2023 15:30:46 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B0B6440F16; Wed, 24 May 2023 15:30:45 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id 9047640156 for ; Wed, 24 May 2023 15:30:44 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684935044; x=1716471044; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=u+A5llXLWhxU3/tU/KmKYWLc7RwB4jM9WnEqlBuLjd8=; b=NVAzAXg9YbyNvQAqNmexV6fokGngg2i3DjqxiDC+al5W/2TGxusYD65y /uGCnctAeh80NTHh15/YC/Cw5PIj9aBNQIXxL27dfBl347re/6jtsU6FI C37IFk1yAqouvm47fBpQ90YSp5x8GyjAeE7/8kBVKBlC11yMcGvVgHTvS HeykRzM0bgcbCtQhppSDgU47Xjutywx4i6B852uL3MU1PWzmoA7NhlYap YR7CUBTh5eS4f7C6AReWpkZFEmzHYX1EngHDP6sjwnfxTdiQH9la4eUEN C70CHsTLpqL2jaY52EtOdn0GLMfhQMaeTA0thW7Yr1Jd+nAn1BNlka9q2 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="333922313" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="333922313" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 06:30:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="951025264" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="951025264" Received: from silpixa00401183.ir.intel.com ([10.55.129.127]) by fmsmga006.fm.intel.com with ESMTP; 24 May 2023 06:30:41 -0700 From: Tadhg Kearney To: dts@dpdk.org Cc: karen.kelly@intel.com, Tadhg Kearney Subject: [dts][PATCH v3 1/2] tests/power_intel_uncore: add new power_intel_uncore test suite Date: Wed, 24 May 2023 13:30:31 +0000 Message-Id: <20230524133032.132392-2-tadhg.kearney@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230524133032.132392-1-tadhg.kearney@intel.com> References: <20230524133032.132392-1-tadhg.kearney@intel.com> MIME-Version: 1.0 X-BeenThere: dts@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: test suite reviews and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dts-bounces@dpdk.org Automated tests added to test intel uncore API enabled through l3fwd-power. Signed-off-by: Tadhg Kearney --- tests/TestSuite_power_intel_uncore.py | 294 ++++++++++++++++++++++++++ 1 file changed, 294 insertions(+) create mode 100644 tests/TestSuite_power_intel_uncore.py diff --git a/tests/TestSuite_power_intel_uncore.py b/tests/TestSuite_power_intel_uncore.py new file mode 100644 index 00000000..f0d7f078 --- /dev/null +++ b/tests/TestSuite_power_intel_uncore.py @@ -0,0 +1,294 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2023 Intel Corporation +# + +""" +DPDK Test suite. +Power Intel Uncore test suite. +""" + +import os +import traceback + +from framework.exception import VerifyFailure +from framework.test_case import TestCase + +BASE_CLOCK = 100000 + + +class TestPowerIntelUncore(TestCase): + @property + def target_dir(self): + # get absolute directory of target source code + target_dir = ( + "/root" + self.dut.base_dir[1:] + if self.dut.base_dir.startswith("~") + else self.dut.base_dir + ) + return target_dir + + def prepare_binary(self, name): + example_dir = "examples/" + name + self.dut.build_dpdk_apps("./" + example_dir) + return os.path.join(self.target_dir, self.dut.apps_name[os.path.basename(name)]) + + def init_l3fwd_power(self): + self.l3fwd_power = self.prepare_binary("l3fwd-power") + + def start_l3fwd_power(self, option): + l3fwd_cmd = f'-c 0x6 -n 1 -- -p 0x1 -P --config="(0,0,2)" {option}' + prompt = "L3FWD_POWER: lcore 1 has nothing to do" + # timeout of 120 seconds as it takes that long for l3fwd-power to output its final command + self.l3fwd_session.send_expect( + " ".join([self.l3fwd_power, l3fwd_cmd]), prompt, 120 + ) + self.is_l3fwd_on = True + + def close_l3fwd_power(self): + if not self.is_l3fwd_on: + return + cmd = "^C" + self.l3fwd_session.send_expect(cmd, "#") + + def preset_test_environment(self): + self.is_l3fwd_on = None + self.init_l3fwd_power() + # initialise seperate session for l3fwd, so that while l3fwd-power is ran rdmsr can check values + self.l3fwd_session = self.dut.new_session("l3fwd") + + def validate_power_uncore_values_equal(self, target_value, current_value): + if target_value != current_value: + msg = "l3fwd-power failed to set the correct value for uncore" + raise VerifyFailure(msg) + + def get_current_uncore_max(self): + current_uncore_max_cmd = "rdmsr 0x620 -f 8:0 -d" + current_uncore_max = int(self.dut.send_expect(current_uncore_max_cmd, "#")) + return current_uncore_max * BASE_CLOCK + + def get_current_uncore_min(self): + current_uncore_min_cmd = "rdmsr 0x620 -f 16:8 -d" + current_uncore_min = int(self.dut.send_expect(current_uncore_min_cmd, "#")) + return current_uncore_min * BASE_CLOCK + + # + # Test cases. + # + def set_up_all(self): + """ + Run at the start of each test suite. + """ + # prerequisites + cpu_attr = r"/sys/devices/system/cpu/intel_uncore_frequency" + cmd = "ls {0}".format(cpu_attr) + self.dut.send_expect(cmd, "#") + self.dut.send_expect("modprobe msr", "#") + self.dut.send_expect("modprobe intel-uncore-frequency", "#") + + # build the 'dpdk-l3fwd-power' tool + out = self.dut.build_dpdk_apps("examples/l3fwd-power") + self.verify("Error" not in out, ' "dpdk-l3fwd-power" build error') + self.l3fwd_path = self.dut.apps_name["l3fwd-power"] + self.logger.debug("l3fwd-power tool path: {}".format(self.l3fwd_path)) + self.l3fwd_is_on = False + self.l3fwd_session = self.dut.new_session("l3fwd") + + # prepare testing environment + self.preset_test_environment() + + def validate_power_uncore_freq_max(self): + """ + Check that setting max uncore frequency, sets to correct value without errors + """ + # Make sure that current uncore max is not equal to max possible uncore freq + current_uncore_max = self.get_current_uncore_max() + # can just check pkg 0 die 0 as it will be the same for each pkg + initial_uncore_max_cmd = "cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_max_freq_khz" + initial_uncore_max = int(self.dut.send_expect(initial_uncore_max_cmd, "#")) + + if current_uncore_max == initial_uncore_max: + # reducing freq by BASE_CLOCK is easiest and safest freq value to set + lower_uncore_max = current_uncore_max - BASE_CLOCK + intel_uncore_dir_cmd = ( + 'os.listdir("/sys/devices/system/cpu/intel_uncore_frequency")' + ) + intel_uncore_dir = self.dut.send_expect(intel_uncore_dir_cmd, "#") + for uncore_die_sysfs_file in intel_uncore_dir: + # check if current path is a file + if os.path.isfile( + os.path.join(intel_uncore_dir, uncore_die_sysfs_file) + ): + set_freq_cmd = f"echo {lower_uncore_max} > /sys/devices/system/cpu/intel_uncore_frequency/{uncore_die_sysfs_file}/max_freq_khz" + self.dut.send_expect(set_freq_cmd, "#") + + except_content = None + try: + self.start_l3fwd_power("-U") + current_uncore_max = self.get_current_uncore_max() + self.validate_power_uncore_values_equal( + initial_uncore_max, current_uncore_max + ) + current_uncore_min = self.get_current_uncore_min() + self.validate_power_uncore_values_equal( + initial_uncore_max, current_uncore_min + ) + except Exception as e: + self.logger.error(traceback.format_exc()) + except_content = e + finally: + self.close_l3fwd_power() + + # check verify result + if except_content: + raise VerifyFailure(except_content) + else: + msg = "test validate_power_uncore_freq_max successful !!!" + self.logger.info(msg) + + def validate_power_uncore_freq_min(self): + """ + Check that setting min uncore frequency, sets to correct value without errors + """ + # Make sure that current uncore min is not equal to min possible uncore freq + current_uncore_min = self.get_current_uncore_min() + # can just check pkg 0 die 0 as it will be the same for each pkg + initial_uncore_min_cmd = "cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_min_freq_khz" + initial_uncore_min = int(self.dut.send_expect(initial_uncore_min_cmd, "#")) + + if current_uncore_min == initial_uncore_min: + # reducing freq by BASE_CLOCK is easiest and safest freq value to set + higher_uncore_min = current_uncore_min + BASE_CLOCK + intel_uncore_dir_cmd = ( + 'os.listdir("/sys/devices/system/cpu/intel_uncore_frequency")' + ) + intel_uncore_dir = self.dut.send_expect(intel_uncore_dir_cmd, "#") + for uncore_die_sysfs_file in intel_uncore_dir: + # check if current path is a file + if os.path.isfile( + os.path.join(intel_uncore_dir, uncore_die_sysfs_file) + ): + set_freq_cmd = f"echo {higher_uncore_min} > /sys/devices/system/cpu/intel_uncore_frequency/{uncore_die_sysfs_file}/min_freq_khz" + self.dut.send_expect(set_freq_cmd, "#") + + except_content = None + try: + self.start_l3fwd_power("-u") + current_uncore_min = self.get_current_uncore_min() + self.validate_power_uncore_values_equal( + initial_uncore_min, current_uncore_min + ) + current_uncore_max = self.get_current_uncore_max() + self.validate_power_uncore_values_equal( + initial_uncore_min, current_uncore_max + ) + except Exception as e: + self.logger.error(traceback.format_exc()) + except_content = e + finally: + self.close_l3fwd_power() + + # check verify result + if except_content: + raise VerifyFailure(except_content) + else: + msg = "test validate_power_uncore_freq_min successful !!!" + self.logger.info(msg) + + def validate_power_uncore_freq_idx(self): + """ + Check that setting idx uncore frequency, sets to correct value without errors + """ + # Make sure that current uncore idx is not equal to idx possible uncore freq + current_uncore_max = self.get_current_uncore_max() + # can just check pkg 0 die 0 as it will be the same for each pkg + initial_uncore_idx_cmd = "cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_max_freq_khz" + # 200000 is taken from initial_uncore_idx as the index selected is 2 steps below max + target_uncore_idx = ( + int(self.dut.send_expect(initial_uncore_idx_cmd, "#")) - 200000 + ) + + if current_uncore_max == target_uncore_idx: + # increasing freq by BASE_CLOCK is easiest and safest freq value to set + higher_uncore_idx = current_uncore_max + BASE_CLOCK + intel_uncore_dir_cmd = ( + 'os.listdir("/sys/devices/system/cpu/intel_uncore_frequency")' + ) + intel_uncore_dir = self.dut.send_expect(intel_uncore_dir_cmd, "#") + for uncore_die_sysfs_file in intel_uncore_dir: + # check if current path is a file + if os.path.isfile( + os.path.join(intel_uncore_dir, uncore_die_sysfs_file) + ): + set_freq_cmd = f"echo {higher_uncore_idx} > /sys/devices/system/cpu/intel_uncore_frequency/{uncore_die_sysfs_file}/max_freq_khz" + self.dut.send_expect(set_freq_cmd, "#") + + except_content = None + try: + self.start_l3fwd_power("-i 2") + current_uncore_max = self.get_current_uncore_max() + self.validate_power_uncore_values_equal( + target_uncore_idx, current_uncore_max + ) + current_uncore_min = self.get_current_uncore_min() + self.validate_power_uncore_values_equal( + target_uncore_idx, current_uncore_min + ) + except Exception as e: + self.logger.error(traceback.format_exc()) + except_content = e + finally: + self.close_l3fwd_power() + + # check verify result + if except_content: + raise VerifyFailure(except_content) + else: + msg = "test validate_power_uncore_freq_idx successful !!!" + self.logger.info(msg) + + def validate_power_uncore_exit(self): + except_content = None + try: + # any command works, output doesn't matter + self.start_l3fwd_power("-U") + if not self.is_l3fwd_on: + return + # final line when exiting l3fwd-power with this setup and there are no issues + prompt = "mode and been set back to the original" + self.l3fwd_session.send_expect("^C", prompt) + except Exception as e: + self.logger.error(traceback.format_exc()) + except_content = e + finally: + self.close_l3fwd_power() + + # check verify result + if except_content: + raise VerifyFailure(except_content) + else: + msg = "test validate_power_uncore_exit successful !!!" + self.logger.info(msg) + + def tear_down_all(self): + """Run after each test suite.""" + pass + + def set_up(self): + """Run before each test case.""" + pass + + def tear_down(self): + """Run after each test case.""" + self.dut.kill_all() + + def test_validate_power_uncore_freq_max(self): + self.validate_power_uncore_freq_max() + + def test_validate_power_uncore_freq_min(self): + self.validate_power_uncore_freq_min() + + def test_validate_power_uncore_freq_idx(self): + self.validate_power_uncore_freq_idx() + + def test_validate_power_uncore_exit(self): + self.validate_power_uncore_exit() From patchwork Wed May 24 13:30:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tadhg Kearney X-Patchwork-Id: 127329 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 71D6942B8C; Wed, 24 May 2023 15:30:46 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D23C44282D; Wed, 24 May 2023 15:30:45 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id 031314067E for ; Wed, 24 May 2023 15:30:44 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684935045; x=1716471045; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=d/m+CF1bnQKlhUrNA2wfDFclW9ik4ZsafCDLfgfRKqk=; b=I8NH+9PxOp+SpVjnbPcjJlsGQ7HqPI2pOMHrLC/9er8QO0YZfi8j9/ZI pdxVPWn1CF03Meppm9CUvyi4giPHqDll6ADNVfHJgPuUvO3Z3rBF9T/17 SOWJFTiwkklgQdfzjbgR1YQgJP0DhvWk29JPSpr2wldiVCIr+SyCy0fGM Xjj5eQ+nDNSYPUvgt5C2ij8h4zgeHU27s7GK4f9qbZB823Q28wNQDPxyf y1lSMrEZWNJjPaVTigYDrPWrABkAbQA359mcyl46xiWPKaEf+dPDy5MIJ xelWDMcfS3tNnXOufBtsNb4sf/Xpai+0hbLojO3OjR7/iNlsdx10ih+Ph A==; X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="333922323" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="333922323" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 06:30:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="951025272" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="951025272" Received: from silpixa00401183.ir.intel.com ([10.55.129.127]) by fmsmga006.fm.intel.com with ESMTP; 24 May 2023 06:30:42 -0700 From: Tadhg Kearney To: dts@dpdk.org Cc: karen.kelly@intel.com, Tadhg Kearney Subject: [dts][PATCH v3 2/2] test_plans/power_intel_uncore: add test_plan for newly added test suite Date: Wed, 24 May 2023 13:30:32 +0000 Message-Id: <20230524133032.132392-3-tadhg.kearney@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230524133032.132392-1-tadhg.kearney@intel.com> References: <20230524133032.132392-1-tadhg.kearney@intel.com> MIME-Version: 1.0 X-BeenThere: dts@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: test suite reviews and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dts-bounces@dpdk.org Add new test_plan for newly added testsuite power_intel_uncore. Signed-off-by: Tadhg Kearney Acked-by: Reshma Pattan --- test_plans/index.rst | 1 + test_plans/power_intel_uncore_test_plan.rst | 126 ++++++++++++++++++++ 2 files changed, 127 insertions(+) create mode 100644 test_plans/power_intel_uncore_test_plan.rst diff --git a/test_plans/index.rst b/test_plans/index.rst index 2008f50b..c43ee002 100644 --- a/test_plans/index.rst +++ b/test_plans/index.rst @@ -212,6 +212,7 @@ The following are the test plans for the DPDK DTS automated test system. power_bidirection_channel_test_plan power_branch_ratio_test_plan power_empty_poll_test_plan + power_intel_uncore_test_plan power_pbf_test_plan power_pmd_test_plan power_pstate_test_plan diff --git a/test_plans/power_intel_uncore_test_plan.rst b/test_plans/power_intel_uncore_test_plan.rst new file mode 100644 index 00000000..b2f33625 --- /dev/null +++ b/test_plans/power_intel_uncore_test_plan.rst @@ -0,0 +1,126 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2023 Intel Corporation + +============================ +Power Intel Uncore Test Plan +============================ +Uncore is a term used by Intel to describe the functions of a microprocessor that are +not in the core, but which must be closely connected to the core to achieve high performance; +L3 cache, on-die memory controller, etc. +L3fwd-power facilitates setting uncores frequency using DPDK Intel Uncore API. + +There is a test for each of the three options that are available for setting the uncore frequency, +along with one final test to check successful exiting of Uncore API. + +Uncore is changed per socket level, this test suite is designed to change the uncore value +for each socket, however only socket 0 is verified to see if a change has been made. +To view changed frequency, using MSR can be done on any core of the socket. +See "Useful MSR 0x620 Information" section for more information. + +Preperation work +================ +1. Check kernel version to make sure that it's greater than 5.6 + uname -r +2. Check if uncore is enabled. + cd /sys/devices/system/cpu/intel_uncore_frequency + if not: + check if kernel flag is enabled: + cat /boot/config-$(uname -r) | grep -i CONFIG_INTEL_UNCORE_FREQ_CONTROL + Otherwise add uncore sysfs driver + modprobe intel-uncore-frequency +3. Check if MSR driver is built-in or is loaded + modprobe msr + +Useful MSR 0x620 Information +============================ +* MSR 0x620 is a seperate register interface to configure uncore P-state ratio + limits and read back the current set uncore ratio limits. +* Bits 0:6 are for max ratio and bits 8:14 for min ratio. +* MSR 0x620 value is a ratio value, which means it must be multiplied by the base clock + to get the uncore frequency in KHz. In this example 100000. +* When reading MSR 0x620 during this test suite core 0 on socket 0 is only checked + for the uncore max and min ratio limits. When no core is specified for rdmsr, + then it defaults to core 0. + +Test Case 1: Validate_power_uncore_freq_max +=========================================== +Step 1. Check current max set uncore frequency versus max possible frequency + + "rdmsr 0x620 -f 6:0 -d" * 100000 + cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_max_freq_khz + + If these are equal, then change the value of each sysfs file by bringing them down 1 bin (100MHz). + + echo {lower_uncore_max} > /sys/devices/system/cpu/intel_uncore_frequency/package_XX_die_XX/max_freq_khz + +Step 2. Run basic l3fwd-power configuration to set min/max uncore frequency to max limit + + .//examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P --config="(0,0,2)" -U + +Step 3. Confirm uncore min/max frequencies are set to max limit + + "rdmsr 0x620 -f 6:0 -d" * 100000 + "rdmsr 0x620 -f 14:8" * 100000 + + +Test Case 2: Validate_power_uncore_freq_min +=========================================== + +Step 1. Check current min set uncore frequency versus min possible frequency + + "rdmsr 0x620 -f 14:8" * 100000 + cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_min_freq_khz + + If these are equal, then change the value of each sysfs file by bringing them up 1 bin (100MHz) . + + echo {higher_uncore_min} > /sys/devices/system/cpu/intel_uncore_frequency/package_XX_die_XX/min_freq_khz + +Step 2. Run basic l3fwd-power configuration to set min/max uncore frequency to min limit + + .//examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P --config="(0,0,2)" -u + +Step 3. Confirm uncore min/max frequencies are set to min limit + + "rdmsr 0x620 -f 14:8" * 100000 + "rdmsr 0x620 -f 6:0 -d" * 100000 + + +Test Case 3: Validate_power_uncore_freq_idx +=========================================== + +Step 1. Check current max uncore frequency versus index 2. + Index 2 is equal to the frequency at index 2. + This is equal to => max possible freq - 200000(2 bin (200MHz)). + For example index range is [2400000, 2300000, 2200000,......,900000,800000], index 2 is 2200000. + + "rdmsr 0x620 -f 6:0 -d" * 100000 + (cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/initial_max_freq_khz) - 200000 + + If these are equal, then change the value of each sysfs file by bringing them up 1 bin (100MHz). + + echo {higher_uncore_idx} > /sys/devices/system/cpu/intel_uncore_frequency/package_XX_die_XX/max_freq_khz + +Step 2. Run basic l3fwd-power configuration to set min/max uncore frequency to index value + + .//examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P --config="(0,0,2)" -i 2 + +Step 3. Confirm uncore min/max frequencies are set to index value + + "rdmsr 0x620 -f 6:0 -d" * 100000 + "rdmsr 0x620 -f 14:8" * 100000 + + +Test Case 4: Validate_power_uncore_exit +======================================= + +Step 1. Run basic l3fwd-power configuration. Doesn't matter just want to get l3fwd-power running + + .//examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P --config="(0,0,2)" -U + +Step 2. Exit program and ensure there are no errors/ right output is recieved + + Ctrl-C + Check for line "mode and been set back to the original" + Which should be the last line the program outputs when exiting correctly. + The start of the line is omitted as it won't be known which mode/which lcore will be set + back to the original.