[swcomp] Add commands for performance testing deflate and bzip2 compression

Sources/swcomp/PerfTests/CompBz2.swift

@@ -0,0 +1,55 @@
+// Copyright (c) 2018 Timofey Solomko
+// Licensed under MIT License
+//
+// See LICENSE for license information
+
+import Foundation
+import SWCompression
+import SwiftCLI
+
+#if os(Linux)
+    import CoreFoundation
+#endif
+
+class CompBz2: Command {
+
+    let name = "comp-bz2"
+    let shortDescription = "Performs performance testing for BZip2 compression using specified files"
+
+    let files = CollectedParameter()
+
+    func execute() throws {
+        print("BZip2 Compression Performance Testing")
+        print("===================================")
+
+        for file in self.files.value {
+            print("File: \(file)\n")
+
+            let inputURL = URL(fileURLWithPath: file)
+            let fileData = try Data(contentsOf: inputURL, options: .mappedIfSafe)
+
+            var totalTime: Double = 0
+
+            var maxTime = Double(Int.min)
+            var minTime = Double(Int.max)
+
+            for i in 1...6 {
+                print("Iteration \(i): ", terminator: "")
+                let startTime = CFAbsoluteTimeGetCurrent()
+                _ = BZip2.compress(data: fileData)
+                let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
+                print(String(format: "%.3f", timeElapsed))
+                totalTime += timeElapsed
+                if timeElapsed > maxTime {
+                    maxTime = timeElapsed
+                }
+                if timeElapsed < minTime {
+                    minTime = timeElapsed
+                }
+            }
+            print(String(format: "\nAverage time: %.3f \u{B1} %.3f", totalTime / 6, (maxTime - minTime) / 2))
+            print("-----------------------------------")
+        }
+    }
+
+}

Sources/swcomp/PerfTests/CompDeflate.swift

@@ -0,0 +1,55 @@
+// Copyright (c) 2018 Timofey Solomko
+// Licensed under MIT License
+//
+// See LICENSE for license information
+
+import Foundation
+import SWCompression
+import SwiftCLI
+
+#if os(Linux)
+    import CoreFoundation
+#endif
+
+class CompDeflate: Command {
+
+    let name = "comp-deflate"
+    let shortDescription = "Performs performance testing for Deflate compression using specified files"
+
+    let files = CollectedParameter()
+
+    func execute() throws {
+        print("Deflate Compression Performance Testing")
+        print("==================================")
+
+        for file in self.files.value {
+            print("File: \(file)\n")
+
+            let inputURL = URL(fileURLWithPath: file)
+            let fileData = try Data(contentsOf: inputURL, options: .mappedIfSafe)
+
+            var totalTime: Double = 0
+
+            var maxTime = Double(Int.min)
+            var minTime = Double(Int.max)
+
+            for i in 1...6 {
+                print("Iteration \(i): ", terminator: "")
+                let startTime = CFAbsoluteTimeGetCurrent()
+                _ = Deflate.compress(data: fileData)
+                let timeElapsed = CFAbsoluteTimeGetCurrent() - startTime
+                print(String(format: "%.3f", timeElapsed))
+                totalTime += timeElapsed
+                if timeElapsed > maxTime {
+                    maxTime = timeElapsed
+                }
+                if timeElapsed < minTime {
+                    minTime = timeElapsed
+                }
+            }
+            print(String(format: "\nAverage time: %.3f \u{B1} %.3f", totalTime / 6, (maxTime - minTime) / 2))
+            print("----------------------------------")
+        }
+    }
+
+}

Sources/swcomp/PerfTests/PerfTestGroup.swift

@@ -11,6 +11,6 @@ class PerfTestGroup: CommandGroup {
     let name = "perf-test"
     let shortDescription = "Commands for performance testing"
 
-    let children: [Routable] = [UnGzip(), UnXz(), UnBz2(), InfoTar(), InfoZip(), Info7z()]
+    let children: [Routable] = [UnGzip(), UnXz(), UnBz2(), InfoTar(), InfoZip(), Info7z(), CompDeflate(), CompBz2()]
 
 }