find size of heap allocated Post: 302520395

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I'm a new guy to this field and I'm learning a lot about UNIX! Can any explan to me what exactly does 'heap size' mean and how can i increase the size for AIX 4.3.3?

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Hi all, Thanks 'thehoghunter' and 'hugo' for the comments! I've to increase the size of the heap size for AIX 4.3.3. Now what's the command that I've and also is it something similar to growing the file system in Solaris (growfs)

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ld.hugetlbfs

LD.HUGETLBFS(1) 					      General Commands Manual						   LD.HUGETLBFS(1)

NAME

       ld.hugetlbfs - link a program for huge pages

SYNOPSIS

       ld.hugetlbfs [options]

DESCRIPTION

       ld.hugetlbfs replaces the normal ld command for linking programs to use hugepages.  Under gcc, you should use the option -B /usr/share/lib-
       hugetlbfs which tells gcc to look in a non-standard location for the linker.  This could be set in the CFLAGS environment variable.

       -Wl,--hugetlbfs-align

	      This method of linking an application permits greater flexibility at runtime.  Using HUGETLB_ELFMAP, it is possible to control which
	      program segments are placed in hugepages.  The following four settings will cause the indicated segments to be placed in hugepages:

		      HUGETLB_ELFMAP=R	      Read-only segments (text)
		      HUGETLB_ELFMAP=W	      Writable segments (data/BSS)
		      HUGETLB_ELFMAP=RW       All segments (text/data/BSS)
		      HUGETLB_ELFMAP=no       No segments

	      It is possible to select specific huge page sizes for read-only and writable segments by using the following advanced syntax:

		      HUGETLB_ELFMAP=[R[=<pagesize>]:[W[=<pagesize>]]

	      -Wl,--hugetlbfs-link=B

	      Under binutils 2.16 or older, this option will link the application to store BSS data (only) into hugepages.

	      -Wl,--hugetlbfs-link=BDT

	      Under binutils 2.16 or older, this option will link the application to store text, initialized data and BSS data into hugepages.

FILES

       [DESTDIR|/usr/share]/doc/libhugetlbfs/HOWTO

SEE ALSO

       libhugetlbfs(7), hugectl(8), hugeedit(8)

AUTHORS

       libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.

								  March 12, 2012						   LD.HUGETLBFS(1)

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

heap size!

Discussion started by: i2admin

2. Filesystems, Disks and Memory

heap size for JVM!