/usr/local/bin/diffoscope --jquery http://code.jquery.com/jquery-2.2.4.min.js --html-dir /tank/diffoscope/valgrind-devel-3.10.1.20160113,1 /usr/local/poudriere/data/packages/e24a8cae34360705d022f17584bb6b4507b8eb89-build1/All/valgrind-devel-3.10.1.20160113,1.txz /usr/local/poudriere/data/packages/e24a8cae34360705d022f17584bb6b4507b8eb89-build2/All/valgrind-devel-3.10.1.20160113,1.txz

/usr/local/poudriere/data/packages/e24a8cae34360705d022f17584bb6b4507b8eb89-build1/All/valgrind-devel-3.10.1.20160113,1.txz vs.

/usr/local/poudriere/data/packages/e24a8cae34360705d022f17584bb6b4507b8eb89-build2/All/valgrind-devel-3.10.1.20160113,1.txz ¶

valgrind-devel-3.10.1.20160113,1.txz-content ¶

file list ¶

+COMPACT_MANIFEST ¶

+MANIFEST ¶

/usr/local/man/man1/callgrind_annotate.1.gz ¶

callgrind_annotate.1 ¶

/usr/local/man/man1/callgrind_control.1.gz ¶

callgrind_control.1 ¶

/usr/local/man/man1/cg_annotate.1.gz ¶

cg_annotate.1 ¶

/usr/local/man/man1/cg_diff.1.gz ¶

cg_diff.1 ¶

/usr/local/man/man1/cg_merge.1.gz ¶

cg_merge.1 ¶

/usr/local/man/man1/ms_print.1.gz ¶

ms_print.1 ¶

/usr/local/man/man1/valgrind-listener.1.gz ¶

valgrind-listener.1 ¶

/usr/local/man/man1/valgrind.1.gz ¶

valgrind.1 ¶

/usr/local/man/man1/vgdb.1.gz ¶

vgdb.1 ¶

/usr/local/share/doc/valgrind/html/dist.html ¶

/usr/local/share/doc/valgrind/html/index.html ¶

/usr/local/share/doc/valgrind/html/faq.html ¶

/usr/local/share/doc/valgrind/html/FAQ.html ¶

/usr/local/share/doc/valgrind/html/tech-docs.html ¶

/usr/local/share/doc/valgrind/html/QuickStart.html ¶

/usr/local/share/doc/valgrind/html/dh-manual.html ¶

/usr/local/share/doc/valgrind/html/manual.html ¶

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1	{"name":"valgrind-devel","origin":"devel/valgrind-devel","version":"3.10.1.20160113,1","comment":"Memory·debugging·and·profiling·tool","maintainer":"bdrewery@FreeBSD.org","www":"https://bitbucket.org/stass/valgrind-freebsd/overview","abi":"FreeBSD:11:amd64","arch":"freebsd:11:x86:64","prefix":"/usr/local","flatsize":183627047,"licenselogic":"single","licenses":["GPLv2"],"desc":"Valgrind·is·a·system·for·debugging·and·profiling·un*x·programs.·With·the·tools\nthat·come·with·Valgrind,·you·can·automatically·detect·many·memory·management\nand·threading·bugs,·avoiding·hours·of·frustrating·bug-hunting,·making·your\nprograms·more·stable.·You·can·also·perform·detailed·profiling,·to·speed·up·and\nreduce·memory·use·of·your·programs.\n\nThe·Valgrind·distribution·includes·five·tools:·two·memory·error·detectors,·a\nthread·error·detector,·a·cache·profiler·and·a·heap·profiler.·Several·other\ntools·have·been·built·with·Valgrind.\n\nValgrind·was·initially·ported·to·FreeBSD·by\nDoug·Rabson·(http://www.rabson.org/).\n\nWWW:·https·✂	1	{"name":"valgrind-devel","origin":"devel/valgrind-devel","version":"3.10.1.20160113,1","comment":"Memory·debugging·and·profiling·tool","maintainer":"bdrewery@FreeBSD.org","www":"https://bitbucket.org/stass/valgrind-freebsd/overview","abi":"FreeBSD:11:amd64","arch":"freebsd:11:x86:64","prefix":"/usr/local","flatsize":183627048,"licenselogic":"single","licenses":["GPLv2"],"desc":"Valgrind·is·a·system·for·debugging·and·profiling·un*x·programs.·With·the·tools\nthat·come·with·Valgrind,·you·can·automatically·detect·many·memory·management\nand·threading·bugs,·avoiding·hours·of·frustrating·bug-hunting,·making·your\nprograms·more·stable.·You·can·also·perform·detailed·profiling,·to·speed·up·and\nreduce·memory·use·of·your·programs.\n\nThe·Valgrind·distribution·includes·five·tools:·two·memory·error·detectors,·a\nthread·error·detector,·a·cache·profiler·and·a·heap·profiler.·Several·other\ntools·have·been·built·with·Valgrind.\n\nValgrind·was·initially·ported·to·FreeBSD·by\nDoug·Rabson·(http://www.rabson.org/).\n\nWWW:·https·✂

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264	-r-xr-xr-x···0·root·········(0)·wheel········(0)····38404·2016-04-21·19:48:20.000000·/usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so	264	-r-xr-xr-x···0·root·········(0)·wheel········(0)····38404·2016-04-21·19:48:20.000000·/usr/local/lib/valgrind/vgpreload_memcheck-x86-freebsd.so
265	-rw-r--r--···0·root·········(0)·wheel········(0)······380·2016-04-21·19:48:20.000000·/usr/local/libdata/pkgconfig/valgrind.pc	265	-rw-r--r--···0·root·········(0)·wheel········(0)······380·2016-04-21·19:48:20.000000·/usr/local/libdata/pkgconfig/valgrind.pc
266	-rw-r--r--···0·root·········(0)·wheel········(0)·····1218·2016-04-21·19:48:20.000000·/usr/local/man/man1/callgrind_annotate.1.gz	266	-rw-r--r--···0·root·········(0)·wheel········(0)·····1218·2016-04-21·19:48:20.000000·/usr/local/man/man1/callgrind_annotate.1.gz
267	-rw-r--r--···0·root·········(0)·wheel········(0)·····1707·2016-04-21·19:48:20.000000·/usr/local/man/man1/callgrind_control.1.gz	267	-rw-r--r--···0·root·········(0)·wheel········(0)·····1707·2016-04-21·19:48:20.000000·/usr/local/man/man1/callgrind_control.1.gz
268	-rw-r--r--···0·root·········(0)·wheel········(0)·····1586·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_annotate.1.gz	268	-rw-r--r--···0·root·········(0)·wheel········(0)·····1586·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_annotate.1.gz
269	-rw-r--r--···0·root·········(0)·wheel········(0)······993·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_diff.1.gz	269	-rw-r--r--···0·root·········(0)·wheel········(0)······994·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_diff.1.gz
270	-rw-r--r--···0·root·········(0)·wheel········(0)······755·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_merge.1.gz	270	-rw-r--r--···0·root·········(0)·wheel········(0)······755·2016-04-21·19:48:20.000000·/usr/local/man/man1/cg_merge.1.gz
271	-rw-r--r--···0·root·········(0)·wheel········(0)······901·2016-04-21·19:48:20.000000·/usr/local/man/man1/ms_print.1.gz	271	-rw-r--r--···0·root·········(0)·wheel········(0)······901·2016-04-21·19:48:20.000000·/usr/local/man/man1/ms_print.1.gz
272	-rw-r--r--···0·root·········(0)·wheel········(0)······950·2016-04-21·19:48:20.000000·/usr/local/man/man1/valgrind-listener.1.gz	272	-rw-r--r--···0·root·········(0)·wheel········(0)······950·2016-04-21·19:48:20.000000·/usr/local/man/man1/valgrind-listener.1.gz
273	-rw-r--r--···0·root·········(0)·wheel········(0)····31644·2016-04-21·19:48:20.000000·/usr/local/man/man1/valgrind.1.gz	273	-rw-r--r--···0·root·········(0)·wheel········(0)····31645·2016-04-21·19:48:20.000000·/usr/local/man/man1/valgrind.1.gz
274	-rw-r--r--···0·root·········(0)·wheel········(0)·····2413·2016-04-21·19:48:20.000000·/usr/local/man/man1/vgdb.1.gz	274	-rw-r--r--···0·root·········(0)·wheel········(0)·····2412·2016-04-21·19:48:20.000000·/usr/local/man/man1/vgdb.1.gz
275	-rw-r--r--···0·root·········(0)·wheel········(0)·····1390·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/vg_basic.css	275	-rw-r--r--···0·root·········(0)·wheel········(0)·····1390·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/vg_basic.css
276	-rw-r--r--···0·root·········(0)·wheel········(0)·····5356·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/design-impl.html	276	-rw-r--r--···0·root·········(0)·wheel········(0)·····5356·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/design-impl.html
277	-rw-r--r--···0·root·········(0)·wheel········(0)·····5943·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/dist.readme.html	277	-rw-r--r--···0·root·········(0)·wheel········(0)·····5943·2016-04-21·19:48:20.000000·/usr/local/share/doc/valgrind/html/dist.readme.html
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1	'\"·t	1	'\"·t
2	.\"·····Title:·Callgrind·Annotate	2	.\"·····Title:·Callgrind·Annotate
3	.\"····Author:·[see·the·"Author"·section]	3	.\"····Author:·[see·the·"Author"·section]
4	.\"·Generator:·DocBook·XSL·Stylesheets·v1.76.1·<http://docbook.sf.net/>	4	.\"·Generator:·DocBook·XSL·Stylesheets·v1.76.1·<http://docbook.sf.net/>
5	.\"······Date:·06/10/2016	5	.\"······Date:·06/12/2016
6	.\"····Manual:·Release·3.10.0	6	.\"····Manual:·Release·3.10.0
7	.\"····Source:·Release·3.10.0	7	.\"····Source:·Release·3.10.0
8	.\"··Language:·English	8	.\"··Language:·English
9	.\"	9	.\"
10	.TH·"CALLGRIND·ANNOTATE"·"1"·"06/10/2016"·"Release·3.10.0"·"Release·3.10.0"	10	.TH·"CALLGRIND·ANNOTATE"·"1"·"06/12/2016"·"Release·3.10.0"·"Release·3.10.0"
11	.\"·-----------------------------------------------------------------	11	.\"·-----------------------------------------------------------------
12	.\"·*·Define·some·portability·stuff	12	.\"·*·Define·some·portability·stuff
13	.\"·-----------------------------------------------------------------	13	.\"·-----------------------------------------------------------------
14	.\"·~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~	14	.\"·~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
15	.\"·http://bugs.debian.org/507673	15	.\"·http://bugs.debian.org/507673
16	.\"·http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html	16	.\"·http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
17	.\"·~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~	17	.\"·~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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21	<div·class="titlepage">	21	<div·class="titlepage">
22	<div>	22	<div>
23	<div><h1·class="title">	23	<div><h1·class="title">
24	<a·name="dist"></a>Valgrind·Distribution·Documents</h1></div>	24	<a·name="dist"></a>Valgrind·Distribution·Documents</h1></div>
25	<div><p·class="releaseinfo">Release·3.10.0·10·September·2014</p></div>	25	<div><p·class="releaseinfo">Release·3.10.0·10·September·2014</p></div>
26	<div><p·class="copyright">Copyright·©·2000-2014·<a·class="ulink"·href="http://www.valgrind.org/info/developers.html"·target="_top">Valgrind·Developers</a></p></div>	26	<div><p·class="copyright">Copyright·©·2000-2014·<a·class="ulink"·href="http://www.valgrind.org/info/developers.html"·target="_top">Valgrind·Developers</a></p></div>
27	<div><div·class="legalnotice"·title="Legal·Notice">	27	<div><div·class="legalnotice"·title="Legal·Notice">
28	<a·name="idp~~69626680~~"></a><p>Email:·<a·class="ulink"·href="mailto:valgrind@valgrind.org"·target="_top">valgrind@valgrind.org</a></p>	28	<a·name="idp72543032"></a><p>Email:·<a·class="ulink"·href="mailto:valgrind@valgrind.org"·target="_top">valgrind@valgrind.org</a></p>
29	</div></div>	29	</div></div>
30	</div>	30	</div>
31	<hr>	31	<hr>
32	</div>	32	</div>
33	<div·class="toc">	33	<div·class="toc">
34	<p><b>Table·of·Contents</b></p>	34	<p><b>Table·of·Contents</b></p>
35	<dl>	35	<dl>

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15	<div·align="center"><h1·class="title">	15	<div·align="center"><h1·class="title">
16	<a·name="set-index"></a>Valgrind·Documentation</h1></div>	16	<a·name="set-index"></a>Valgrind·Documentation</h1></div>
17	<div·align="center"><p·class="releaseinfo">Release·3.10.0·10·September·2014</p></div>	17	<div·align="center"><p·class="releaseinfo">Release·3.10.0·10·September·2014</p></div>
18	<div·align="center"><p·class="copyright">Copyright·©·2000-2014·	18	<div·align="center"><p·class="copyright">Copyright·©·2000-2014·
19	········<a·class="link"·href="dist.authors.html"·title="1. AUTHORS">AUTHORS</a>	19	········<a·class="link"·href="dist.authors.html"·title="1. AUTHORS">AUTHORS</a>
20	······</p></div>	20	······</p></div>
21	<div·align="center"><div·class="legalnotice"·title="Legal·Notice">	21	<div·align="center"><div·class="legalnotice"·title="Legal·Notice">
22	<a·name="idp635~~8636~~0"></a><p>Permission·is·granted·to·copy,·distribute·and/or·modify	22	<a·name="idp63565880"></a><p>Permission·is·granted·to·copy,·distribute·and/or·modify
23	········this·document·under·the·terms·of·the·GNU·Free·Documentation	23	········this·document·under·the·terms·of·the·GNU·Free·Documentation
24	········License,·Version·1.2·or·any·later·version·published·by·the	24	········License,·Version·1.2·or·any·later·version·published·by·the
25	········Free·Software·Foundation;·with·no·Invariant·Sections,·with·no	25	········Free·Software·Foundation;·with·no·Invariant·Sections,·with·no
26	········Front-Cover·Texts,·and·with·no·Back-Cover·Texts.··A·copy·of	26	········Front-Cover·Texts,·and·with·no·Back-Cover·Texts.··A·copy·of
27	········the·license·is·included·in·the·section·entitled	27	········the·license·is·included·in·the·section·entitled
28	········<a·class="xref"·href="license.gfdl.html"·title="2. The·GNU·Free·Documentation·License">The·GNU·Free·Documentation·License</a>.	28	········<a·class="xref"·href="license.gfdl.html"·title="2. The·GNU·Free·Documentation·License">The·GNU·Free·Documentation·License</a>.
29	······</p>	29	······</p>

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183	··Try·upgrading·to·a·more·recent·version·of·'make'.··Alternatively,·we·have	183	··Try·upgrading·to·a·more·recent·version·of·'make'.··Alternatively,·we·have
184	··heard·that·unsetting·the·CFLAGS·environment·variable·avoids·the	184	··heard·that·unsetting·the·CFLAGS·environment·variable·avoids·the
185	··problem.</p></td>	185	··problem.</p></td>
186	</tr>	186	</tr>
187	<tr><td·colspan="2"> </td></tr>	187	<tr><td·colspan="2"> </td></tr>
188	<tr·class="question">	188	<tr·class="question">
189	<td·align="left"·valign="top">	189	<td·align="left"·valign="top">
190	<a·name="faq.glibc_devel"></a><a·name="idp64~~30072~~8"></a><b>2.2.</b>	190	<a·name="faq.glibc_devel"></a><a·name="idp64075448"></a><b>2.2.</b>
191	</td>	191	</td>
192	<td·align="left"·valign="top">	192	<td·align="left"·valign="top">
193	<b>When·building·Valgrind,·'make'·fails·with·this:</b><pre·class="screen">	193	<b>When·building·Valgrind,·'make'·fails·with·this:</b><pre·class="screen">
194	/usr/bin/ld:·cannot·find·-lc	194	/usr/bin/ld:·cannot·find·-lc
195	collect2:·ld·returned·1·exit·status	195	collect2:·ld·returned·1·exit·status
196	</pre>	196	</pre>
197	</td>	197	</td>

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22	<a·name="dh-manual"></a>10. DHAT:·a·dynamic·heap·analysis·tool</h2></div></div></div>	22	<a·name="dh-manual"></a>10. DHAT:·a·dynamic·heap·analysis·tool</h2></div></div></div>
23	<div·class="toc">	23	<div·class="toc">
24	<p><b>Table·of·Contents</b></p>	24	<p><b>Table·of·Contents</b></p>
25	<dl>	25	<dl>
26	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.overview">10.1.·Overview</a></span></dt>	26	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.overview">10.1.·Overview</a></span></dt>
27	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.understanding">10.2.·Understanding·DHAT's·output</a></span></dt>	27	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.understanding">10.2.·Understanding·DHAT's·output</a></span></dt>
28	<dd><dl>	28	<dd><dl>
29	<dt><span·class="sect2"><a·href="dh-manual.html#idp76~~440~~632">10.2.1.·Interpreting·the·max-live,·tot-alloc·and·deaths·fields</a></span></dt>	29	<dt><span·class="sect2"><a·href="dh-manual.html#idp76268600">10.2.1.·Interpreting·the·max-live,·tot-alloc·and·deaths·fields</a></span></dt>
30	<dt><span·class="sect2"><a·href="dh-manual.html#idp76~~445~~752">10.2.2.·Interpreting·the·acc-ratios·fields</a></span></dt>	30	<dt><span·class="sect2"><a·href="dh-manual.html#idp76273720">10.2.2.·Interpreting·the·acc-ratios·fields</a></span></dt>
31	<dt><span·class="sect2"><a·href="dh-manual.html#idp76~~453~~048">10.2.3.·Interpreting·"Aggregated·access·counts·by·offset"·data</a></span></dt>	31	<dt><span·class="sect2"><a·href="dh-manual.html#idp76281016">10.2.3.·Interpreting·"Aggregated·access·counts·by·offset"·data</a></span></dt>
32	</dl></dd>	32	</dl></dd>
33	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.options">10.3.·DHAT·Command-line·Options</a></span></dt>	33	<dt><span·class="sect1"><a·href="dh-manual.html#dh-manual.options">10.3.·DHAT·Command-line·Options</a></span></dt>
34	</dl>	34	</dl>
35	</div>	35	</div>
36	<p>To·use·this·tool,·you·must·specify	36	<p>To·use·this·tool,·you·must·specify
37	<code·class="option">--tool=exp-dhat</code>·on·the·Valgrind	37	<code·class="option">--tool=exp-dhat</code>·on·the·Valgrind
38	command·line.</p>	38	command·line.</p>
Offset 86, 17 lines modified		Offset 86, 17 lines modified
86	<div·class="titlepage"><div><div><h2·class="title"·style="clear:·both">	86	<div·class="titlepage"><div><div><h2·class="title"·style="clear:·both">
87	<a·name="dh-manual.understanding"></a>10.2. Understanding·DHAT's·output</h2></div></div></div>	87	<a·name="dh-manual.understanding"></a>10.2. Understanding·DHAT's·output</h2></div></div></div>
88	<p>DHAT·provides·a·lot·of·useful·information·on·dynamic·heap·usage.	88	<p>DHAT·provides·a·lot·of·useful·information·on·dynamic·heap·usage.
89	Most·of·the·art·of·using·it·is·in·interpretation·of·the·resulting	89	Most·of·the·art·of·using·it·is·in·interpretation·of·the·resulting
90	numbers.··That·is·best·illustrated·via·a·set·of·examples.</p>	90	numbers.··That·is·best·illustrated·via·a·set·of·examples.</p>
91	<div·class="sect2"·title="10.2.1. Interpreting·the·max-live,·tot-alloc·and·deaths·fields">	91	<div·class="sect2"·title="10.2.1. Interpreting·the·max-live,·tot-alloc·and·deaths·fields">
92	<div·class="titlepage"><div><div><h3·class="title">	92	<div·class="titlepage"><div><div><h3·class="title">
93	<a·name="idp76~~440~~632"></a>10.2.1. Interpreting·the·max-live,·tot-alloc·and·deaths·fields</h3></div></div></div>	93	<a·name="idp76268600"></a>10.2.1. Interpreting·the·max-live,·tot-alloc·and·deaths·fields</h3></div></div></div>
94	<div·class="sect3"·title="10.2.1.1. A·simple·example"><div·class="titlepage"><div><div><h4·class="title">	94	<div·class="sect3"·title="10.2.1.1. A·simple·example"><div·class="titlepage"><div><div><h4·class="title">
95	<a·name="idp76~~441~~272"></a>10.2.1.1. A·simple·example</h4></div></div></div></div>	95	<a·name="idp76269240"></a>10.2.1.1. A·simple·example</h4></div></div></div></div>
96	<pre·class="screen">	96	<pre·class="screen">
97	···========·SUMMARY·STATISTICS·========	97	···========·SUMMARY·STATISTICS·========

98	···guest_insns:··1,045,339,534	98	···guest_insns:··1,045,339,534
99	···[...]	99	···[...]
100	···max-live:····63,490·in·984·blocks	100	···max-live:····63,490·in·984·blocks
101	···tot-alloc:···1,904,700·in·29,520·blocks·(avg·size·64.52)	101	···tot-alloc:···1,904,700·in·29,520·blocks·(avg·size·64.52)
Offset 119, 15 lines modified		Offset 119, 15 lines modified
119	also·the·number·of·blocks·allocated·in·total,·that·tells·us·that	119	also·the·number·of·blocks·allocated·in·total,·that·tells·us·that
120	all·allocated·blocks·were·freed·by·the·end·of·the·program.</p>	120	all·allocated·blocks·were·freed·by·the·end·of·the·program.</p>
121	<p>It·also·tells·us·that·the·average·age·at·death·was·22,227,424	121	<p>It·also·tells·us·that·the·average·age·at·death·was·22,227,424
122	instructions.··From·the·summary·statistics·we·see·that·the·program·ran	122	instructions.··From·the·summary·statistics·we·see·that·the·program·ran
123	for·1,045,339,534·instructions,·and·so·the·average·age·at·death·is	123	for·1,045,339,534·instructions,·and·so·the·average·age·at·death·is
124	about·2%·of·the·program's·total·run·time.</p>	124	about·2%·of·the·program's·total·run·time.</p>
125	<div·class="sect3"·title="10.2.1.2. Example·of·a·potential·process-lifetime·leak"><div·class="titlepage"><div><div><h4·class="title">	125	<div·class="sect3"·title="10.2.1.2. Example·of·a·potential·process-lifetime·leak"><div·class="titlepage"><div><div><h4·class="title">
126	<a·name="idp76~~443~~448"></a>10.2.1.2. Example·of·a·potential·process-lifetime·leak</h4></div></div></div></div>	126	<a·name="idp76271416"></a>10.2.1.2. Example·of·a·potential·process-lifetime·leak</h4></div></div></div></div>
127	<p>This·next·example·(from·a·different·program·than·the·above)	127	<p>This·next·example·(from·a·different·program·than·the·above)
128	shows·a·potential·process·lifetime·leak.··A·process·lifetime·leak	128	shows·a·potential·process·lifetime·leak.··A·process·lifetime·leak
129	occurs·when·a·program·keeps·allocating·data,·but·only·frees·the	129	occurs·when·a·program·keeps·allocating·data,·but·only·frees·the
130	data·just·before·it·exits.··Hence·the·program's·heap·grows·constantly	130	data·just·before·it·exits.··Hence·the·program's·heap·grows·constantly
131	in·size,·yet·Memcheck·reports·no·leak,·because·the·program·has	131	in·size,·yet·Memcheck·reports·no·leak,·because·the·program·has
132	freed·up·everything·at·exit.··This·is·particularly·a·hazard·for	132	freed·up·everything·at·exit.··This·is·particularly·a·hazard·for
133	long·running·programs.</p>	133	long·running·programs.</p>
Offset 154, 17 lines modified		Offset 154, 17 lines modified
154	transient·allocation-free·spike·--·rather,·it·is·spread·out·over·a	154	transient·allocation-free·spike·--·rather,·it·is·spread·out·over·a
155	large·part·of·the·entire·run.··One·interpretation·is,·roughly,·that	155	large·part·of·the·entire·run.··One·interpretation·is,·roughly,·that
156	all·254·blocks·were·allocated·in·the·first·half·of·the·run,·held·onto	156	all·254·blocks·were·allocated·in·the·first·half·of·the·run,·held·onto
157	for·the·second·half,·and·then·freed·just·before·exit.</p>	157	for·the·second·half,·and·then·freed·just·before·exit.</p>
158	</div>	158	</div>
159	<div·class="sect2"·title="10.2.2. Interpreting·the·acc-ratios·fields">	159	<div·class="sect2"·title="10.2.2. Interpreting·the·acc-ratios·fields">
160	<div·class="titlepage"><div><div><h3·class="title">	160	<div·class="titlepage"><div><div><h3·class="title">
161	<a·name="idp76~~445~~752"></a>10.2.2. Interpreting·the·acc-ratios·fields</h3></div></div></div>	161	<a·name="idp76273720"></a>10.2.2. Interpreting·the·acc-ratios·fields</h3></div></div></div>
162	<div·class="sect3"·title="10.2.2.1. A·fairly·harmless·allocation·point·record"><div·class="titlepage"><div><div><h4·class="title">	162	<div·class="sect3"·title="10.2.2.1. A·fairly·harmless·allocation·point·record"><div·class="titlepage"><div><div><h4·class="title">
163	<a·name="idp76~~446~~392"></a>10.2.2.1. A·fairly·harmless·allocation·point·record</h4></div></div></div></div>	163	<a·name="idp76274360"></a>10.2.2.1. A·fairly·harmless·allocation·point·record</h4></div></div></div></div>
164	<pre·class="screen">	164	<pre·class="screen">
165	···max-live:····49,398·in·808·blocks	165	···max-live:····49,398·in·808·blocks
166	···tot-alloc:···1,481,940·in·24,240·blocks·(avg·size·61.13)	166	···tot-alloc:···1,481,940·in·24,240·blocks·(avg·size·61.13)
167	···deaths:······24,240,·at·avg·age·34,611,026	167	···deaths:······24,240,·at·avg·age·34,611,026
168	···acc-ratios:··2.13·rd,·0.91·wr··(3,166,650·b-read,·1,358,820·b-written)	168	···acc-ratios:··2.13·rd,·0.91·wr··(3,166,650·b-read,·1,358,820·b-written)
169	······at·0x4C275B8:·malloc·(vg_replace_malloc.c:236)	169	······at·0x4C275B8:·malloc·(vg_replace_malloc.c:236)
170	······by·0x40350E:·tcc_malloc·(tinycc.c:6712)	170	······by·0x40350E:·tcc_malloc·(tinycc.c:6712)
Offset 189, 15 lines modified		Offset 189, 15 lines modified
189	<p>If·all·the·blocks·had·been·the·same·size,·DHAT·would·also·show	189	<p>If·all·the·blocks·had·been·the·same·size,·DHAT·would·also·show
190	the·access·counts·by·block·offset,·so·we·could·see·where·exactly·these	190	the·access·counts·by·block·offset,·so·we·could·see·where·exactly·these
191	unused·areas·are.··However,·that·isn't·the·case:·the·blocks·have	191	unused·areas·are.··However,·that·isn't·the·case:·the·blocks·have
192	varying·sizes,·so·DHAT·can't·perform·such·an·analysis.··We·can·see	192	varying·sizes,·so·DHAT·can't·perform·such·an·analysis.··We·can·see
193	that·they·must·have·varying·sizes·since·the·average·block·size,·61.13,	193	that·they·must·have·varying·sizes·since·the·average·block·size,·61.13,
194	isn't·a·whole·number.</p>	194	isn't·a·whole·number.</p>
195	<div·class="sect3"·title="10.2.2.2. A·more·suspicious·looking·example"><div·class="titlepage"><div><div><h4·class="title">	195	<div·class="sect3"·title="10.2.2.2. A·more·suspicious·looking·example"><div·class="titlepage"><div><div><h4·class="title">
196	<a·name="idp76~~448~~952"></a>10.2.2.2. A·more·suspicious·looking·example</h4></div></div></div></div>	196	<a·name="idp76276920"></a>10.2.2.2. A·more·suspicious·looking·example</h4></div></div></div></div>
197	<pre·class="screen">	197	<pre·class="screen">
198	···max-live:····180,224·in·22·blocks	198	···max-live:····180,224·in·22·blocks
199	···tot-alloc:···180,224·in·22·blocks·(avg·size·8192.00)	199	···tot-alloc:···180,224·in·22·blocks·(avg·size·8192.00)
200	···deaths:······none·(none·of·these·blocks·were·freed)	200	···deaths:······none·(none·of·these·blocks·were·freed)
201	···acc-ratios:··0.00·rd,·0.00·wr··(0·b-read,·0·b-written)	201	···acc-ratios:··0.00·rd,·0.00·wr··(0·b-read,·0·b-written)
202	······at·0x4C275B8:·malloc·(vg_replace_malloc.c:236)	202	······at·0x4C275B8:·malloc·(vg_replace_malloc.c:236)
203	······by·0x40350E:·tcc_malloc·(tinycc.c:6712)	203	······by·0x40350E:·tcc_malloc·(tinycc.c:6712)
Offset 209, 15 lines modified		Offset 209, 15 lines modified
209	written.··Indeed,·they·are·also·not·freed·("deaths:·none")·and·are	209	written.··Indeed,·they·are·also·not·freed·("deaths:·none")·and·are
210	simply·leaked.··So,·here·is·180k·of·completely·useless·allocation·that	210	simply·leaked.··So,·here·is·180k·of·completely·useless·allocation·that
211	could·be·removed.</p>	211	could·be·removed.</p>
212	<p>Re-running·with·Memcheck·does·indeed·report·the·same·leak.··What	212	<p>Re-running·with·Memcheck·does·indeed·report·the·same·leak.··What
213	DHAT·can·tell·us,·that·Memcheck·can't,·is·that·not·only·are·the·blocks	213	DHAT·can·tell·us,·that·Memcheck·can't,·is·that·not·only·are·the·blocks
214	leaked,·they·are·also·never·used.</p>	214	leaked,·they·are·also·never·used.</p>
215	<div·class="sect3"·title="10.2.2.3. Another·suspicious·example"><div·class="titlepage"><div><div><h4·class="title">	215	<div·class="sect3"·title="10.2.2.3. Another·suspicious·example"><div·class="titlepage"><div><div><h4·class="title">
216	<a·name="idp76~~450~~744"></a>10.2.2.3. Another·suspicious·example</h4></div></div></div></div>	216	<a·name="idp76278712"></a>10.2.2.3. Another·suspicious·example</h4></div></div></div></div>
217	<p>Here's·one·where·blocks·are·allocated,·written·to,	217	<p>Here's·one·where·blocks·are·allocated,·written·to,
218	but·never·read·from.··We·see·this·immediately·from·the·zero·read	218	but·never·read·from.··We·see·this·immediately·from·the·zero·read
219	access·ratio.··They·do·get·freed,·though:</p>	219	access·ratio.··They·do·get·freed,·though:</p>
220	<pre·class="screen">	220	<pre·class="screen">
221	···max-live:····54·in·3·blocks	221	···max-live:····54·in·3·blocks
222	···tot-alloc:···1,620·in·90·blocks·(avg·size·18.00)	222	···tot-alloc:···1,620·in·90·blocks·(avg·size·18.00)
223	···deaths:······90,·at·avg·age·34,558,236	223	···deaths:······90,·at·avg·age·34,558,236
Offset 237, 15 lines modified		Offset 237, 15 lines modified
237	<p>Really,·what·we·want·is·to·measure·only·memory·accesses·in	237	<p>Really,·what·we·want·is·to·measure·only·memory·accesses·in
238	between·the·end·of·an·object's·construction·and·the·start·of·its	238	between·the·end·of·an·object's·construction·and·the·start·of·its
239	destruction.··Unfortunately·I·do·not·know·of·a·reliable·way·to	239	destruction.··Unfortunately·I·do·not·know·of·a·reliable·way·to
240	determine·when·those·transitions·are·made.</p>	240	determine·when·those·transitions·are·made.</p>
241	</div>	241	</div>
242	<div·class="sect2"·title='10.2.3. Interpreting·"Aggregated·access·counts·by·offset"·data'>	242	<div·class="sect2"·title='10.2.3. Interpreting·"Aggregated·access·counts·by·offset"·data'>
243	<div·class="titlepage"><div><div><h3·class="title">	243	<div·class="titlepage"><div><div><h3·class="title">
244	<a·name="idp76~~453~~048"></a>10.2.3. Interpreting·"Aggregated·access·counts·by·offset"·data</h3></div></div></div>	244	<a·name="idp76281016"></a>10.2.3. Interpreting·"Aggregated·access·counts·by·offset"·data</h3></div></div></div>
245	<p>For·allocation·points·that·always·allocate·blocks·of·the·same	245	<p>For·allocation·points·that·always·allocate·blocks·of·the·same
246	size,·and·which·are·4096·bytes·or·smaller,·DHAT·counts·accesses	246	size,·and·which·are·4096·bytes·or·smaller,·DHAT·counts·accesses
247	per·offset,·for·example:</p>	247	per·offset,·for·example:</p>
248	<pre·class="screen">	248	<pre·class="screen">
249	···max-live:····317,408·in·5,668·blocks	249	···max-live:····317,408·in·5,668·blocks
250	···tot-alloc:···317,408·in·5,668·blocks·(avg·size·56.00)	250	···tot-alloc:···317,408·in·5,668·blocks·(avg·size·56.00)
251	···deaths:······5,668,·at·avg·age·622,890,597	251	···deaths:······5,668,·at·avg·age·622,890,597