Revision: 14834
Author: adrian.chadd
Date: Mon Jan 10 19:27:57 2011
Log: Created wiki page through web user interface.
http://code.google.com/p/lusca-cache/source/detail?r=14834
Added:
/wiki/UsingAnotherMalloc.wiki
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--- /dev/null
+++ /wiki/UsingAnotherMalloc.wiki Mon Jan 10 19:27:57 2011
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+#summary How to build/run Lusca against another malloc (tg tcmalloc)
+#labels Configuration-Example
+
+= Introduction =
+
+Sometimes, you may want to build and/or run Lusca against another malloc
implementation - for example, the google "tcmalloc" suite.
+
+In the past, there were issues using a different malloc to what the system
shipped with - sometimes, libraries would make internal calls to their
local malloc which ignored any other malloc implementation you'd link
against. This could cause problems if memory allocated by the system malloc
was freed with the local malloc, or vice versa.
+
+Thankfully, most open source today doesn't suffer this issue. It can still
creep up in third-party libraries and programs which aren't built with weak
symbols referencing malloc/free (ie, ones that can be overridden.) If you
begin to see weird crashes and leaks when you use another malloc, this may
be why.
+
+= Example - using tcmalloc under RHEL/CentOS =
+
+(From Faysal)
+
+First, install tcmalloc:
+
+# yum install google-perftools google-perftools-devel
+
+Then, when compiling Lusca, just add a LIBS to the configure line, for
example:
+
+./configure 'LIBS=-ltcmalloc'
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