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Add public APIs for creating and dumping Profiles
These functions have been implemented before. This commit organizes them together to a separate Scala file.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,87 @@ | ||
| /*************************************************************************************** | ||
| * Copyright (c) 2024 Institute of Computing Technology, Chinese Academy of Sciences | ||
| * | ||
| * DiffTest is licensed under Mulan PSL v2. | ||
| * You can use this software according to the terms and conditions of the Mulan PSL v2. | ||
| * You may obtain a copy of Mulan PSL v2 at: | ||
| * http://license.coscl.org.cn/MulanPSL2 | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, | ||
| * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, | ||
| * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. | ||
| * | ||
| * See the Mulan PSL v2 for more details. | ||
| ***************************************************************************************/ | ||
|
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| package difftest.util | ||
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| import difftest.DifftestBundle | ||
| import difftest.common.FileControl | ||
| import org.json4s.DefaultFormats | ||
| import org.json4s.native._ | ||
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|
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| import java.nio.file.{Files, Paths} | ||
|
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| // Note: json4s seems to load integers with BigInt. We may need to convert them into int if necessary | ||
|
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| case class BundleProfile( | ||
| className: String, | ||
| classArgs: Map[String, Any], | ||
| delay: Int, | ||
| ) { | ||
| def toBundle: DifftestBundle = { | ||
| val constructor = Class.forName(className).getConstructors()(0) | ||
| val args = constructor.getParameters.map { param => | ||
| (classArgs(param.getName), param.getType.getName) match { | ||
| case (arg: BigInt, "int") => arg.toInt | ||
| case (arg, _) => arg | ||
| } | ||
| } | ||
| constructor.newInstance(args: _*).asInstanceOf[DifftestBundle] | ||
| } | ||
| } | ||
|
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| case class DifftestProfile( | ||
| cpu: String, | ||
| numCores: Int, | ||
| bundles: Seq[BundleProfile], | ||
| ) { | ||
| def toJsonString: String = Serialization.writePretty(this)(DefaultFormats) | ||
| } | ||
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| object DifftestProfile { | ||
| def fromBundles(cpu: String, bundles: Seq[(DifftestBundle, Int)]): DifftestProfile = { | ||
| val numCores = bundles.count(_._1.isUniqueIdentifier) | ||
| require(bundles.length % numCores == 0, "cannot create the profile if cores are not symmetric") | ||
| val bundleProfiles = bundles.take(bundles.length / numCores).map { case (b, d) => BundleProfile.fromBundle(b, d) } | ||
| DifftestProfile(cpu, numCores, bundleProfiles) | ||
| } | ||
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| def fromJson(filename: String): DifftestProfile = { | ||
| val profileStr = new String(Files.readAllBytes(Paths.get(filename))) | ||
| val profiles = JsonMethods.parse(profileStr).extract(DefaultFormats, manifest[Map[String, Any]]) | ||
| val cpu = profiles("cpu").asInstanceOf[String] | ||
| val numCores = profiles("numCores").asInstanceOf[BigInt].toInt | ||
| val bundles = profiles("bundles").asInstanceOf[List[Map[String, Any]]].map { bundleProfileMap => | ||
| BundleProfile( | ||
| bundleProfileMap("className").asInstanceOf[String], | ||
| bundleProfileMap("classArgs").asInstanceOf[Map[String, Any]], | ||
| bundleProfileMap("delay").asInstanceOf[BigInt].toInt, | ||
| ) | ||
| } | ||
| DifftestProfile(cpu, numCores, bundles) | ||
| } | ||
| } | ||
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| object BundleProfile { | ||
| def fromBundle(bundle: DifftestBundle, delay: Int): BundleProfile = { | ||
| BundleProfile(bundle.getClass.getName, bundle.classArgs, delay) | ||
| } | ||
| } | ||
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| object Profile { | ||
| def generateJson(cpu: String, bundles: Seq[(DifftestBundle, Int)], profileName: String = "difftest"): Unit = { | ||
| val difftestProfile = DifftestProfile.fromBundles(cpu, bundles) | ||
| FileControl.write(Seq(difftestProfile.toJsonString), s"${profileName}_profile.json") | ||
| } | ||
| } |
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