Implement Cpu Freq Section (0eb22349) · Commits · e / os / android_frameworks_base

Android.bp

+2 −0

Original line number	Diff line number	Diff line
		@@ -58,6 +58,7 @@ cc_library {
		// runtime, as well as the only protos that are actually
		// needed by the device.
		srcs: [
		"core/proto/android/os/cpufreq.proto",
		"core/proto/android/os/cpuinfo.proto",
		"core/proto/android/os/kernelwake.proto",
		"core/proto/android/os/pagetypeinfo.proto",
		@@ -82,6 +83,7 @@ gensrcs {
		],

		srcs: [
		"core/proto/android/os/cpufreq.proto",
		"core/proto/android/os/cpuinfo.proto",
		"core/proto/android/os/kernelwake.proto",
		"core/proto/android/os/pagetypeinfo.proto",

cmds/incident_helper/src/main.cpp

+3 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		#define LOG_TAG "incident_helper"

		#include "parsers/CpuFreqParser.h"
		#include "parsers/CpuInfoParser.h"
		#include "parsers/KernelWakesParser.h"
		#include "parsers/PageTypeInfoParser.h"
		@@ -57,6 +58,8 @@ static TextParserBase* selectParser(int section) {
		return new KernelWakesParser();
		case 2003:
		return new CpuInfoParser();
		case 2004:
		return new CpuFreqParser();
		default:
		return NULL;
		}

cmds/incident_helper/src/parsers/CpuFreqParser.cpp

0 → 100644

+90 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		#define LOG_TAG "incident_helper"

		#include <android/util/ProtoOutputStream.h>
		#include <unistd.h>

		#include "frameworks/base/core/proto/android/os/cpufreq.proto.h"
		#include "ih_util.h"
		#include "CpuFreqParser.h"

		using namespace android::os;

		status_t
		CpuFreqParser::Parse(const int in, const int out) const
		{
		Reader reader(in);
		string line;

		// parse header
		reader.readLine(&line);
		header_t header = parseHeader(line, TAB_DELIMITER);
		if (header.size() < 1) {
		fprintf(stderr, "Bad header: %s\n", line.c_str());
		return BAD_VALUE;
		}
		const int numCpus = (int)header.size() - 1;
		vector<pair<int, long long>> cpucores[numCpus];

		// parse freq and time
		while (reader.readLine(&line)) {
		if (line.empty()) continue;

		record_t record = parseRecord(line, TAB_DELIMITER);
		if (record.size() != header.size()) {
		fprintf(stderr, "Bad line: %s\n", line.c_str());
		continue;
		}

		int freq = toInt(record[0]);
		for (int i=0; i<numCpus; i++) {
		if (strcmp(record[i+1].c_str(), "N/A") == 0) {
		continue;
		}
		cpucores[i].push_back(make_pair(freq, toLongLong(record[i+1])));
		}
		}

		ProtoOutputStream proto;

		long jiffyHz = sysconf(_SC_CLK_TCK);
		proto.write(CpuFreq::JIFFY_HZ, (int)jiffyHz);

		for (int i=0; i<numCpus; i++) {
		long long token = proto.start(CpuFreq::CPU_FREQS);
		proto.write(CpuFreqStats::CPU_NAME, header[i+1]);
		for (vector<pair<int, long long>>::iterator it = cpucores[i].begin(); it != cpucores[i].end(); it++) {
		long long stateToken = proto.start(CpuFreqStats::TIMES);
		proto.write(CpuFreqStats::TimeInState::STATE_KHZ, it->first);
		proto.write(CpuFreqStats::TimeInState::TIME_JIFFY, it->second);
		proto.end(stateToken);
		}
		proto.end(token);
		}

		if (!reader.ok(&line)) {
		fprintf(stderr, "Bad read from fd %d: %s\n", in, line.c_str());
		return -1;
		}

		if (!proto.flush(out)) {
		fprintf(stderr, "[%s]Error writing proto back\n", this->name.string());
		return -1;
		}
		fprintf(stderr, "[%s]Proto size: %zu bytes\n", this->name.string(), proto.size());
		return NO_ERROR;
		}

cmds/incident_helper/src/parsers/CpuFreqParser.h

0 → 100644

+35 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2017 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		#ifndef CPU_FREQ_PARSER_H
		#define CPU_FREQ_PARSER_H

		#include "TextParserBase.h"

		using namespace android;

		/**
		* Cpu frequency parser, parses text in /sys/devices/system/cpu/cpufreq/all_time_in_state
		*/
		class CpuFreqParser : public TextParserBase {
		public:
		CpuFreqParser() : TextParserBase(String8("CpuFreqParser")) {};
		~CpuFreqParser() {};

		virtual status_t Parse(const int in, const int out) const;
		};

		#endif // CPU_FREQ_PARSER_H

cmds/incident_helper/testdata/cpufreq.txt

0 → 100644

+6 −0

Original line number	Diff line number	Diff line
		freq cpu0 cpu1 cpu2 cpu3
		307200 23860761 23860761 23890935 23890935
		384000 83124 83124 29383 29383
		748800 N/A N/A 10547 10547
		768000 22652 22652 N/A N/A
		825600 N/A N/A 13173 13173