diff options
Diffstat (limited to 'tests/src/GC/Performance/Tests/GCPerf.cs')
| -rw-r--r-- | tests/src/GC/Performance/Tests/GCPerf.cs | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/tests/src/GC/Performance/Tests/GCPerf.cs b/tests/src/GC/Performance/Tests/GCPerf.cs new file mode 100644 index 0000000000..b963b53622 --- /dev/null +++ b/tests/src/GC/Performance/Tests/GCPerf.cs @@ -0,0 +1,74 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +using System; + +class Foo +{ + public Foo F1; + public Foo F2; + public Foo F3; + public Foo F4; + static int SizeOfFoo = 32; + + static void Main(string[] args) + { + int mem = Int32.MaxValue / 2; + if( args.Length > 0 ) + { + if ( !Int32.TryParse( args[0], out mem ) ) + { + mem = Int32.MaxValue / 2; + } + } + + int fooCnt = mem / SizeOfFoo; + Console.WriteLine( "Creating {0} objects of type 'Foo', each with a size of {1} bytes.", fooCnt, SizeOfFoo ); + + Foo[] currFoos = new Foo[ 4 ]; + for( int i = 0; i < fooCnt; ++i ) + { + Foo f = new Foo(); + if( i < 4 ) + { + currFoos[i] = f; + } + else + { + f.F1 = currFoos[0]; + f.F2 = currFoos[1]; + f.F3 = currFoos[2]; + f.F4 = currFoos[3]; + + currFoos[0] = currFoos[1]; + currFoos[1] = currFoos[2]; + currFoos[2] = currFoos[3]; + currFoos[3] = f; + } + } + + Random randDel = new Random( 17 ); + int delCnt = randDel.Next( 5, 100 ); + Console.WriteLine( "Deleting {0} objects.", delCnt ); + + Foo currDelBlock = currFoos[0].F1; + Foo nextDelBlock = currFoos[0].F1; + for( int i = 0; i < delCnt; ++i ) + { + for( int j = 0; j < 10; ++j ) + { + nextDelBlock = nextDelBlock.F1; + } + for( int k = 0; k < 4; ++k ) + { + currDelBlock.F1 = null; + currDelBlock.F2.F4 = null; + currDelBlock.F3.F3 = null; + currDelBlock.F4.F2 = null; + } + currDelBlock = nextDelBlock; + } + } +} + |