diff --git a/SCTE35Parser.xcodeproj/project.pbxproj b/SCTE35Parser.xcodeproj/project.pbxproj
index d9982ad..4d1d93b 100644
--- a/SCTE35Parser.xcodeproj/project.pbxproj
+++ b/SCTE35Parser.xcodeproj/project.pbxproj
@@ -21,6 +21,7 @@
 /* End PBXAggregateTarget section */
 
 /* Begin PBXBuildFile section */
+		8262471B2DFF7CB20019E31D /* SCTE35ParserMeasurements.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8262471A2DFF7CA20019E31D /* SCTE35ParserMeasurements.swift */; };
 		E801367826502C3100EA6FBF /* Data+hexString.swift in Sources */ = {isa = PBXBuildFile; fileRef = OBJ_26 /* Data+hexString.swift */; };
 		E801367926502C3100EA6FBF /* SpliceInfoSection.swift in Sources */ = {isa = PBXBuildFile; fileRef = OBJ_57 /* SpliceInfoSection.swift */; };
 		E801367A26502C3200EA6FBF /* Data+hexString.swift in Sources */ = {isa = PBXBuildFile; fileRef = OBJ_26 /* Data+hexString.swift */; };
@@ -181,6 +182,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		8262471A2DFF7CA20019E31D /* SCTE35ParserMeasurements.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SCTE35ParserMeasurements.swift; sourceTree = "<group>"; };
 		E80136622650282100EA6FBF /* SCTE35Parser.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = SCTE35Parser.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		E801367026502B6800EA6FBF /* SCTE35Parser.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = SCTE35Parser.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		OBJ_10 /* ATSCContentIdentifier.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ATSCContentIdentifier.swift; sourceTree = "<group>"; };
@@ -387,6 +389,7 @@
 			isa = PBXGroup;
 			children = (
 				OBJ_67 /* SCTE35ParserTests.swift */,
+				8262471A2DFF7CA20019E31D /* SCTE35ParserMeasurements.swift */,
 				OBJ_63 /* Errors */,
 				OBJ_65 /* Mocks */,
 				OBJ_68 /* Stubs */,
@@ -756,6 +759,7 @@
 				OBJ_147 /* UnexpectedEndOfDataErrorInfo+stub.swift in Sources */,
 				OBJ_148 /* BreakDurationTests.swift in Sources */,
 				OBJ_149 /* SpliceTimeTests.swift in Sources */,
+				8262471B2DFF7CB20019E31D /* SCTE35ParserMeasurements.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/F00E5336-7646-4E04-BB9A-5CEBBE24BC78.plist b/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/F00E5336-7646-4E04-BB9A-5CEBBE24BC78.plist
new file mode 100644
index 0000000..d8640c9
--- /dev/null
+++ b/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/F00E5336-7646-4E04-BB9A-5CEBBE24BC78.plist
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>classNames</key>
+	<dict>
+		<key>SCTE35ParserMeasurements</key>
+		<dict>
+			<key>test_performance_of_many_scte35_messages()</key>
+			<dict>
+				<key>com.apple.XCTPerformanceMetric_WallClockTime</key>
+				<dict>
+					<key>baselineAverage</key>
+					<real>0.005000</real>
+					<key>baselineIntegrationDisplayName</key>
+					<string>Local Baseline</string>
+				</dict>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/Info.plist b/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/Info.plist
new file mode 100644
index 0000000..0bb24bc
--- /dev/null
+++ b/SCTE35Parser.xcodeproj/xcshareddata/xcbaselines/SCTE35Parser::SCTE35ParserTests.xcbaseline/Info.plist
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>runDestinationsByUUID</key>
+	<dict>
+		<key>F00E5336-7646-4E04-BB9A-5CEBBE24BC78</key>
+		<dict>
+			<key>localComputer</key>
+			<dict>
+				<key>busSpeedInMHz</key>
+				<integer>0</integer>
+				<key>cpuCount</key>
+				<integer>1</integer>
+				<key>cpuKind</key>
+				<string>Apple M1 Max</string>
+				<key>cpuSpeedInMHz</key>
+				<integer>0</integer>
+				<key>logicalCPUCoresPerPackage</key>
+				<integer>10</integer>
+				<key>modelCode</key>
+				<string>MacBookPro18,2</string>
+				<key>physicalCPUCoresPerPackage</key>
+				<integer>10</integer>
+				<key>platformIdentifier</key>
+				<string>com.apple.platform.macosx</string>
+			</dict>
+			<key>targetArchitecture</key>
+			<string>arm64</string>
+		</dict>
+	</dict>
+</dict>
+</plist>
diff --git a/Tests/SCTE35ParserTests/SCTE35ParserMeasurements.swift b/Tests/SCTE35ParserTests/SCTE35ParserMeasurements.swift
new file mode 100644
index 0000000..110176f
--- /dev/null
+++ b/Tests/SCTE35ParserTests/SCTE35ParserMeasurements.swift
@@ -0,0 +1,64 @@
+import XCTest
+import SCTE35Parser
+
+final class SCTE35ParserMeasurements: XCTestCase {
+    func test_performance_of_many_scte35_messages() {
+        // The messages were taken from an example 10 hour window live stream.
+        let messages = [
+            "0xfc309200000000000000fff00506fe0f195d98007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300102f120bb98",
+            "0xfc309400000000000000fff00506fe1065d9e0007e027c43554549000000017fd70000f731400c684e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22616666696c696174655f627265616b222c226b6579223a227062222c2276616c7565223a22616666696c69617465227d7d300102c012c396",
+            "0xfc308800000000000000fff00506fe11c41d940072027043554549000000017fd70000cdfe600c5c4e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22726f6c657831222c226b6579223a227062222c2276616c7565223a22726f6c657831227d7d3001016edd51d3",
+            "0xfc309200000000000000fff00506fe23c472d2007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300131c015814a",
+            "0xfc309200000000000000fff00506fe26b9d7bd007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300231eba8fa04",
+            "0xfc309200000000000000fff00506fe2a462cd2007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300331942bf4fc",
+            "0xfc309400000000000000fff00506fe2d29be96007e027c43554549000000017fd70000ff6ea00c684e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22616666696c696174655f627265616b222c226b6579223a227062222c2276616c7565223a22616666696c69617465227d7d30010c99a761f2",
+            "0xfc309200000000000000fff00506fe2fc27c7f007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d30043171235ad5",
+            "0xfc309200000000000000fff00506fe32fde592007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300531734d1999",
+            "0xfc309200000000000000fff00506fe366108f6007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300631ff234d72",
+            "0xfc309200000000000000fff00506fe398588cd007c027a43554549000000017fd70000ff6ea00c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300731e5d2c4d2",
+            "0xfc309200000000000000fff00506fe3b35e981007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300831764d0e3a",
+            "0xfc309200000000000000fff00506fe3ea46a0d007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d3009313b9cd3e5",
+            "0xfc309200000000000000fff00506fe40cda000007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300a310ce0abc8",
+            "0xfc309200000000000000fff00506fe43c7d49e007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300b319f9f7244",
+            "0xfc309400000000000000fff00506fe479307e7007e027c43554549000000017fd70000ff6ea00c684e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22616666696c696174655f627265616b222c226b6579223a227062222c2276616c7565223a22616666696c69617465227d7d30020cddf2da60",
+            "0xfc309200000000000000fff00506fe4ecbadef007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300c31d9978b47",
+            "0xfc309200000000000000fff00506fe52ef165f007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300d31dc1ed44a",
+            "0xfc309200000000000000fff00506fe584149bf007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300e31189087b8",
+            "0xfc309400000000000000fff00506fe5b92bd2d007e027c43554549000000017fd70000ff6ea00c684e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22616666696c696174655f627265616b222c226b6579223a227062222c2276616c7565223a22616666696c69617465227d7d30030c8c80e249",
+            "0xfc309200000000000000fff00506fe5e22ddc2007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d300f31dc662641",
+            "0xfc309200000000000000fff00506fe61daddfa007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d3010311017b1b1",
+            "0xfc309200000000000000fff00506fe665dd071007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d3011311bd0a26b",
+            "0xfc309200000000000000fff00506fe6a27f5ed007c027a43554549000000017fd70000ff6ea00c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d3012314954cf71",
+            "0xfc309200000000000000fff00506fe70d2d5e3007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d30133100106e24",
+            "0xfc309400000000000000fff00506fe7492c37a007e027c43554549000000017fd70000ff6ea00c684e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a22616666696c696174655f627265616b222c226b6579223a227062222c2276616c7565223a22616666696c69617465227d7d30040c876d3099",
+            "0xfc309200000000000000fff00506fe77fc167b007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d301431cacc50de",
+            "0xfc309200000000000000fff00506fe7d16c087007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d30153179354257",
+            "0xfc309200000000000000fff00506fe7f19bf44007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d3016311f48b25e",
+            "0xfc309200000000000000fff00506fe8d5822c7007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d301735a8ed326c",
+            "0xfc309200000000000000fff00506fe90544fce007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d301836087faf2e",
+            "0xfc309200000000000000fff00506fe941bb576007c027a43554549000000017fd70000cdfe600c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d301936d2b6357a",
+            "0xfc309200000000000000fff00506fe9894cde0007c027a43554549000000017fd70000f731400c664e4243557b2261737365745f6964223a22706561636f636b5f373230343739222c2263756544617461223a7b2263756554797065223a227374616e646172645f627265616b222c226b6579223a227062222c2276616c7565223a227374616e64617264227d7d301a364d469d06"
+        ]
+        var parsed = [SpliceInfoSection]()
+        measure {
+            for message in messages {
+                parsed.append(try! SpliceInfoSection(message))
+            }
+        }
+        // Do some very basic validation (the other test cases cover everything else).
+        for scte35 in parsed {
+            switch scte35.spliceCommand {
+            case .timeSignal: break
+            default: XCTFail("All the messages are time signals")
+            }
+            XCTAssertEqual(1, scte35.spliceDescriptors.count)
+            guard let spliceDescriptor = scte35.spliceDescriptors.first else {
+                return XCTFail("Expected one splice descriptor")
+            }
+            switch spliceDescriptor {
+            case .segmentationDescriptor: break
+            default: XCTFail("All the messages are segmentation descriptors")
+            }
+        }
+    }
+}