Detecting .NET clr heap leaks with WinDbg

byAlex R. •May 21, 2013
WinDbg can be used to debug .NET application by loading first the SOS.dll module.
Open WinDbg and attach to a .NET process.
Run:
.loadby SOS.dll
Now we can examine the heap by running
!dumpheap -stat
!dumpheap -stat -min 1000 to show only objects with a total size of more than 1000 bytes.
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/984859869-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY74kpiyL28RswGDBiXEdjEmFRz7Zw:1731824513979';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d2139279071038304164','//alexrait.blogspot.com/2013/05/detecting-net-clr-heap-leaks-with-windbg.html','2139279071038304164');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '2139279071038304164', 'title': 'Coding with Alex', 'url': 'https://alexrait.blogspot.com/2013/05/detecting-net-clr-heap-leaks-with-windbg.html', 'canonicalUrl': 'https://alexrait.blogspot.com/2013/05/detecting-net-clr-heap-leaks-with-windbg.html', 'homepageUrl': 'https://alexrait.blogspot.com/', 'searchUrl': 'https://alexrait.blogspot.com/search', 'canonicalHomepageUrl': 'https://alexrait.blogspot.com/', 'blogspotFaviconUrl': 'https://alexrait.blogspot.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': false, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'UA-202988341-1', 'encoding': 'UTF-8', 'locale': 'en', 'localeUnderscoreDelimited': 'en', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Coding with Alex - Atom\x22 href\x3d\x22https://alexrait.blogspot.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Coding with Alex - RSS\x22 href\x3d\x22https://alexrait.blogspot.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Coding with Alex - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/2139279071038304164/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Coding with Alex - Atom\x22 href\x3d\x22https://alexrait.blogspot.com/feeds/4984465820940396303/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-9348007134072555', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': false, 'adsenseAutoAds': false, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/3d970d7188fc7945', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'X', 'key': 'twitter', 'shareMessage': 'Share to X', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': true, 'jumpLinkMessage': 'Blog Posts', 'pageType': 'item', 'postId': '4984465820940396303', 'pageName': 'Detecting .NET clr heap leaks with WinDbg', 'pageTitle': 'Coding with Alex: Detecting .NET clr heap leaks with WinDbg', 'metaDescription': ''}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard!', 'ok': 'Ok', 'postLink': 'Post Link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': 'Detecting .NET clr heap leaks with WinDbg', 'description': 'A collection of interesting software articles, tips and code snippets, mostly in .NET and JavaScript.', 'url': 'https://alexrait.blogspot.com/2013/05/detecting-net-clr-heap-leaks-with-windbg.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 4984465820940396303}}, {'name': 'widgets', 'data': [{'title': 'Default Thumbnail', 'type': 'Image', 'sectionId': 'pbt-panel', 'id': 'Image52'}, {'title': 'JSON Variables', 'type': 'HTML', 'sectionId': 'pbt-panel', 'id': 'HTML50'}, {'title': 'Coding with Alex', 'type': 'Image', 'sectionId': 'main-logo', 'id': 'Image50'}, {'title': '', 'type': 'LinkList', 'sectionId': 'xdfcb-main-menu', 'id': 'LinkList200'}, {'title': 'Links', 'type': 'LinkList', 'sectionId': 'headerbar', 'id': 'LinkList201'}, {'title': 'Follow Us', 'type': 'LinkList', 'sectionId': 'headerbar', 'id': 'LinkList202'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'main', 'id': 'Blog1', 'posts': [{'id': '4984465820940396303', 'title': 'Detecting .NET clr heap leaks with WinDbg', 'showInlineAds': false}], 'headerByline': {'regionName': 'header1', 'items': [{'name': 'share', 'label': ''}, {'name': 'author', 'label': 'by'}, {'name': 'timestamp', 'label': '\u2022'}]}, 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'comments', 'label': '$type\x3d{blogger}'}, {'name': 'icons', 'label': ''}]}, {'regionName': 'footer2', 'items': [{'name': 'labels', 'label': 'Tags'}]}], 'allBylineItems': [{'name': 'share', 'label': ''}, {'name': 'author', 'label': 'by'}, {'name': 'timestamp', 'label': '\u2022'}, {'name': 'comments', 'label': '$type\x3d{blogger}'}, {'name': 'icons', 'label': ''}, {'name': 'labels', 'label': 'Tags'}]}, {'title': 'You might like', 'type': 'HTML', 'sectionId': 'xdfcb-related-posts', 'id': 'HTML51'}, {'title': 'Coding with Alex (Header)', 'type': 'Header', 'sectionId': 'sidebar', 'id': 'Header1'}, {'title': 'Main Tags', 'type': 'Label', 'sectionId': 'sidebar', 'id': 'Label2'}, {'title': 'Total Pageviews', 'type': 'Stats', 'sectionId': 'sidebar', 'id': 'Stats1'}, {'title': 'Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sidebar', 'id': 'PopularPosts2', 'posts': [{'title': 'The mystery behind file extensions', 'id': 3638078121481613638}, {'title': 'SHA256 support in windows XP', 'id': 3238970205216479489}, {'title': 'A skeleton for a .NET console application with dependency injection', 'id': 3036110136314605278}, {'title': 'List of websites that offer free icons in ICO, PNG or SVG formats.', 'id': 3121387169778765423}]}, {'title': 'Most Popular Posts', 'type': 'PopularPosts', 'sectionId': 'sidebar', 'id': 'PopularPosts1', 'posts': [{'title': 'The mystery behind file extensions', 'id': '3638078121481613638'}, {'title': 'SHA256 support in windows XP', 'id': '3238970205216479489'}, {'title': 'A skeleton for a .NET console application with dependency injection', 'id': '3036110136314605278'}, {'title': 'List of websites that offer free icons in ICO, PNG or SVG formats.', 'id': '3121387169778765423'}, {'title': 'Configure Log4Net in a .NET core application', 'id': '5202891952012580662'}, {'title': 'Sign precomputed hash with bouncycastle (c#)', 'id': '6817314065043168772'}]}, {'title': 'About Us', 'type': 'Image', 'sectionId': 'xdfcb-about-section', 'id': 'Image51'}]}]);
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image52', 'pbt-panel', document.getElementById('Image52'), {'resize': true}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML50', 'pbt-panel', document.getElementById('HTML50'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image50', 'main-logo', document.getElementById('Image50'), {'resize': true}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList200', 'xdfcb-main-menu', document.getElementById('LinkList200'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList201', 'headerbar', document.getElementById('LinkList201'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList202', 'headerbar', document.getElementById('LinkList202'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'main', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/2784278825-lbx.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/1964470060-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML51', 'xdfcb-related-posts', document.getElementById('HTML51'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HeaderView', new _WidgetInfo('Header1', 'sidebar', document.getElementById('Header1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LabelView', new _WidgetInfo('Label2', 'sidebar', document.getElementById('Label2'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_StatsView', new _WidgetInfo('Stats1', 'sidebar', document.getElementById('Stats1'), {'title': 'Total Pageviews', 'showGraphicalCounter': false, 'showAnimatedCounter': false, 'showSparkline': true, 'statsUrl': '//alexrait.blogspot.com/b/stats?style\x3dBLACK_TRANSPARENT\x26timeRange\x3dALL_TIME\x26token\x3dAPq4FmDbn7-fhlq396c2Uyb8m48xO6aWeq5IFLrFwUssG-Uyl5RMZM4szjlmQiR7jOSHEfPVq5zIrpCeRFjaeKv0t0Nw6ebP2A'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts2', 'sidebar', document.getElementById('PopularPosts2'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_PopularPostsView', new _WidgetInfo('PopularPosts1', 'sidebar', document.getElementById('PopularPosts1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image51', 'xdfcb-about-section', document.getElementById('Image51'), {'resize': true}, 'displayModeFull'));
</script>
</body>
Detecting .NET clr heap leaks with WinDbg

Post a Comment
