microsoft / referencesource
File Size

The distribution of size of files (measured in lines of code).

Intro
  • File size measurements show the distribution of size of files.
  • Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
  • It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.
Learn more...
File Size Overall
  • There are 14,937 files with 3,184,512 lines of code.
    • 659 very long files (1,227,981 lines of code)
    • 888 long files (614,293 lines of code)
    • 2,125 medium size files (667,560 lines of codeclsfd_ftr_w_mp_ins)
    • 2,337 small files (336,579 lines of code)
    • 8,928 very small files (338,099 lines of code)
38% | 19% | 20% | 10% | 10%
Legend:
1001+
501-1000
201-500
101-200
1-100


explore: zoomable circles | sunburst | 3D view
File Size per Extension
1001+
501-1000
201-500
101-200
1-100
cs38% | 19% | 21% | 10% | 10%
vb58% | 18% | 11% | 7% | 3%
xaml33% | 4% | 19% | 16% | 26%
js11% | 33% | 25% | 17% | 11%
pl0% | 0% | 0% | 100% | 0%
targets0% | 0% | 0% | 0% | 100%
TXT0% | 0% | 0% | 0% | 100%
cmd0% | 0% | 0% | 0% | 100%
htm0% | 0% | 0% | 0% | 100%
File Size per Logical Decomposition
primary
1001+
501-1000
201-500
101-200
1-100
System.Data42% | 20% | 18% | 10% | 8%
mscorlib42% | 23% | 18% | 8% | 6%
System.ServiceModel34% | 21% | 22% | 11% | 10%
System.Web36% | 16% | 21% | 11% | 13%
System.Web.DataVisualization78% | 12% | 7% | <1% | <1%
System37% | 19% | 21% | 9% | 11%
System.Xml57% | 14% | 15% | 5% | 7%
System.Data.Entity30% | 20% | 26% | 13% | 9%
System.Runtime.Serialization54% | 21% | 15% | 4% | 4%
System.Workflow.ComponentModel42% | 22% | 18% | 9% | 5%
System.Activities36% | 14% | 21% | 12% | 15%
Microsoft.VisualBasic58% | 18% | 11% | 7% | 3%
System.Activities.Presentation26% | 20% | 21% | 13% | 17%
System.Workflow.Activities42% | 13% | 26% | 10% | 6%
System.Core28% | 20% | 21% | 16% | 13%
System.Data.Linq53% | 9% | 26% | 5% | 5%
System.IdentityModel27% | 12% | 23% | 17% | 18%
System.Data.SqlXml32% | 24% | 19% | 12% | 10%
Microsoft.CSharp43% | 23% | 11% | 11% | 10%
System.ServiceModel.Activities42% | 18% | 13% | 10% | 15%
System.Web.Services39% | 10% | 26% | 12% | 10%
System.Web.Mobile22% | 22% | 28% | 13% | 13%
System.Workflow.Runtime45% | 14% | 21% | 7% | 10%
System.Web.Extensions20% | 19% | 25% | 16% | 17%
System.Configuration34% | 9% | 20% | 11% | 23%
inc99% | 0% | 0% | 0% | <1%
System.Xml.Linq77% | 11% | 11% | 0% | 0%
System.Messaging40% | 10% | 20% | 10% | 17%
System.Activities.Core.Presentation18% | 8% | 32% | 16% | 24%
System.Numerics54% | 0% | 38% | 6% | <1%
System.Net33% | 25% | 29% | 4% | 7%
System.WorkflowServices12% | 22% | 31% | 16% | 17%
System.ServiceModel.Internals15% | 28% | 35% | 8% | 11%
Microsoft.Bcl21% | 35% | 17% | 12% | 13%
System.ServiceModel.Activation18% | 36% | 16% | 15% | 13%
System.Runtime.DurableInstancing24% | 15% | 26% | 10% | 23%
xsd100% | 0% | 0% | 0% | 0%
System.Web.Entity26% | 33% | 15% | 15% | 9%
System.Web.Entity.Design26% | 0% | 44% | 13% | 15%
System.Data.Entity.Design9% | 29% | 38% | 11% | 10%
System.ServiceModel.Discovery6% | 6% | 30% | 27% | 28%
System.ServiceModel.Web7% | 13% | 45% | 15% | 17%
XamlBuildTask0% | 38% | 35% | 12% | 13%
System.ServiceModel.Channels0% | 25% | 50% | 8% | 15%
System.ServiceProcess0% | 48% | 31% | 4% | 15%
System.Runtime.Caching0% | 37% | 18% | 21% | 22%
System.ServiceModel.Routing0% | 27% | 52% | 4% | 15%
System.Activities.DurableInstancing0% | 21% | 29% | 21% | 27%
SMDiagnostics0% | 40% | 22% | 8% | 28%
System.Web.DynamicData0% | 8% | 37% | 24% | 29%
System.ServiceModel.WasHosting0% | 60% | 0% | 12% | 27%
System.IdentityModel.Selectors0% | 15% | 13% | 29% | 41%
System.Device0% | 21% | 59% | 12% | 7%
System.Web.Routing0% | 0% | 53% | 13% | 32%
System.Configuration.Install0% | 0% | 57% | 21% | 20%
Microsoft.Bcl.Async0% | 0% | 46% | 19% | 34%
System.ComponentModel.DataAnnotations0% | 0% | 22% | 31% | 46%
aspnet_compiler0% | 0% | 100% | 0% | 0%
System.Web.ApplicationServices0% | 0% | 30% | 12% | 57%
Microsoft.Activities.Build0% | 0% | 26% | 34% | 38%
System.Xaml.Hosting0% | 0% | 36% | 36% | 27%
System.Data.DataSetExtensions0% | 0% | 18% | 65% | 15%
regcomp0% | 0% | 100% | 0% | 0%
regexes0% | 0% | 0% | 80% | 19%
ROOT0% | 0% | 0% | 0% | 100%
Longest Files (Top 50)
File# lines# units
ServiceDescriptionSerializer.cs
in System.Web.Services/System/Web/Services/Description
 10854 100
SR.cs
in System.Web.DataVisualization/Common
 9952 151
TdsParser.cs
in System.Data/fx/src/data/System/Data/SqlClient
 8540 198
TdsParser.cs
in System.Data/System/Data/SqlClient
 8537 198
xaml
Icons.Default.xaml
in System.Activities.Presentation/System.Activities.Presentation/Themes
 7898 -
XmlTextReaderImpl.cs
in System.Xml/System/Xml/Core
 7107 198
BaselineExcludes.lst.cs
in System.Core
 6909 -
Socket.cs
in System/net/System/Net/Sockets
 6712 240
Operators.vb
in Microsoft.VisualBasic/runtime/msvbalib/Helpers
 5435 161
XLinq.cs
in System.Xml.Linq/System/Xml/Linq
 5319 459
DataPoint.cs
in System.Web.DataVisualization/Common/DataManager
 5248 153
GlobalSuppressions.cs
in System.Web
 5170 -
WorkflowServiceInstance.cs
in System.ServiceModel.Activities/System/ServiceModel/Activities/Dispatcher
 4990 305
DataTable.cs
in System.Data/System/Data
 4944 218
DataTable.cs
in System.Data/fx/src/data/System/Data
 4944 218
WorkflowApplication.cs
in System.Activities/System/Activities
 4927 333
SqlCommand.cs
in System.Data/System/Data/SqlClient
 4876 126
SqlCommand.cs
in System.Data/fx/src/data/System/Data/SqlClient
 4876 126
message.cs
in mscorlib/system/runtime/remoting
 4799 154
eventsource.cs
in mscorlib/system/diagnostics/eventing
 4712 170
rttype.cs
in mscorlib/system
 4687 147
baseline.cs
in System/sys
 4681 -
Axis.cs
in System.Web.DataVisualization/Common/General
 4642 57
Literal.cs
in System.Workflow.Activities/Rules
 4600 934
Page.cs
in System.Web/UI
 4494 173
Legend.cs
in System.Web.DataVisualization/Common/General
 4450 47
SecuritySessionServerSettings.cs
in System.ServiceModel/System/ServiceModel/Security
 4424 225
HttpWebRequest.cs
in System/net/System/Net
 4172 108
XmlTextReaderImplAsync.cs
in System.Xml/System/Xml/Core
 4110 87
XmlSerializationReader.cs
in System.Xml/System/Xml/Serialization
 4043 166
Properties.cs
in System.ServiceModel/System/ServiceModel/Configuration
 3985 -
SqlDataReader.cs
in System.Data/System/Data/SqlClient
 3963 81
SqlDataReader.cs
in System.Data/fx/src/data/System/Data/SqlClient
 3963 81
appdomain.cs
in mscorlib/system
 3887 162
PieChart.cs
in System.Web.DataVisualization/Common/ChartTypes
 3835 47
ChartGraphics.cs
in System.Web.DataVisualization/Common/General
 3778 70
URI.cs
in System/net/System
 3729 83
datetimeparse.cs
in mscorlib/system/globalization
 3715 121
Saml2SecurityTokenHandler.cs
in System.IdentityModel/System/IdentityModel/Tokens
 3657 115
ActivityExecutor.cs
in System.Activities/System/Activities/Runtime
 3642 185
XmlILOptimizerVisitor.cs
in System.Data.SqlXml/System/Xml/Xsl/IlGen
 3613 129
GridView.cs
in System.Web/UI/WebControls
 3607 96
ReliableChannelBinder.cs
in System.ServiceModel/System/ServiceModel/Channels
 3603 200
HttpChannelHelpers.cs
in System.ServiceModel/System/ServiceModel/Channels
 3600 202
WebPartManager.cs
in System.Web/UI/WebParts
 3570 133
Task.cs
in mscorlib/system/threading/Tasks
 3512 194
ChannelDemuxer.cs
in System.ServiceModel/System/ServiceModel/Channels
 3502 258
ArithmeticLiteral.cs
in System.Workflow.Activities/Rules
 3491 729
XmlBinaryReader.cs
in System.Xml/System/Xml/BinaryXml
 3468 140
XmlSerializationReaderILGen.cs
in System.Xml/System/Xml/Serialization
 3385 73
Files With Most Units (Top 20)
File# lines# units
Literal.cs
in System.Workflow.Activities/Rules
 4600 934
ArithmeticLiteral.cs
in System.Workflow.Activities/Rules
 3491 729
XLinq.cs
in System.Xml.Linq/System/Xml/Linq
 5319 459
AdapterUtil.cs
in System.Data/System/Data/Common
 2102 342
AdapterUtil.cs
in System.Data/fx/src/data/System/Data/Common
 2102 342
EntityUtil.cs
in System.Data.Entity/System/Data/Common
 1706 337
WorkflowApplication.cs
in System.Activities/System/Activities
 4927 333
SqlUtil.cs
in System.Data/System/Data/SqlClient
 1581 333
SqlUtil.cs
in System.Data/fx/src/data/System/Data/SqlClient
 1581 333
DataException.cs
in System.Data/System/Data
 1132 331
DataException.cs
in System.Data/fx/src/data/System/Data
 1132 331
convert.cs
in mscorlib/system
 1886 314
WorkflowServiceInstance.cs
in System.ServiceModel.Activities/System/ServiceModel/Activities/Dispatcher
 4990 305
Enumerable.cs
in System.Core/System/Linq
 2399 273
ChannelDemuxer.cs
in System.ServiceModel/System/ServiceModel/Channels
 3502 258
Socket.cs
in System/net/System/Net/Sockets
 6712 240
arraylist.cs
in mscorlib/system/collections
 1963 236
XmlValueConverter.cs
in System.Xml/System/Xml/Schema
 2048 233
CodeGenerator.cs
in System.Xml/System/Xml/Serialization
 2286 230
SecuritySessionServerSettings.cs
in System.ServiceModel/System/ServiceModel/Security
 4424 225
Files With Long Lines (Top 20)

There are 8583 files with lines longer than 120 characters. In total, there are 134058 long lines.

File# lines# units# long lines
BaselineExcludes.lst.cs
in System.Core
 6909 - 6908
GlobalSuppressions.cs
in System.Web
 5170 - 5163
baseline.cs
in System/sys
 4681 - 4676
Triaged.cs
in System.Data/FxCopSuppressions
 1642 - 1638
Triaged.cs
in System.Data/fx/src/data/FxCopSuppressions
 1642 - 1638
ServiceDescriptionSerializer.cs
in System.Web.Services/System/Web/Services/Description
 10854 100 1406
xaml
Icons.Default.xaml
in System.Activities.Presentation/System.Activities.Presentation/Themes
 7898 - 1365
System.Core.CLR.lst.cs
in System.Core
 966 - 966
FxCop40Suppressions.cs
in System.Data/FxCopSuppressions
 876 - 875
FxCop40Suppressions.cs
in System.Data/fx/src/data/FxCopSuppressions
 876 - 875
Baseline.cs
in System.Data/FxCopSuppressions
 831 - 830
Baseline.cs
in System.Data/fx/src/data/FxCopSuppressions
 831 - 830
AssemblyInfo.cs
in System.WorkflowServices
 698 - 679
Properties.cs
in System.ServiceModel/System/ServiceModel/Configuration
 3985 - 675
rijndaelmanagedtransform.cs
in mscorlib/system/security/cryptography
 1333 16 562
GlobalSuppressions2.cs
in System.Web
 546 - 538
FxCopExclusionsByDesign.cs
in System.Web.DataVisualization/WebForm
 513 - 492
SR.cs
in System.Web.DataVisualization/Common
 9952 151 402
TdsParser.cs
in System.Data/System/Data/SqlClient
 8537 198 350
TdsParser.cs
in System.Data/fx/src/data/System/Data/SqlClient
 8540 198 350