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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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PR_SET_THP_DISABLE(2const) PR_SET_THP_DISABLE(2const)
PR_SET_THP_DISABLE - set the state of the "THP disable" flag for
the calling thread
Standard C library (libc, -lc)
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_SET_THP_DISABLE, long flag, 0L, 0L, 0L);
Set the state of the "THP disable" flag for the calling thread.
If flag has a nonzero value, the flag is set, otherwise it is
cleared.
Setting this flag provides a method for disabling transparent
huge pages for jobs where the code cannot be modified, and using
a malloc hook with madvise(2) is not an option (i.e., statically
allocated data). The setting of the "THP disable" flag is
inherited by a child created via fork(2) and is preserved across
execve(2).
On success, 0 is returned. On error, -1 is returned, and errno
is set to indicate the error.
Linux.
Linux 3.15.
prctl(2), PR_GET_THP_DISABLE(2const)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
fetched from
⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
[email protected]
Linux man-pages 6.9.1 2024-06-01 PR_SET_THP_DISABLE(2const)
Pages that refer to this page: prctl(2), PR_GET_THP_DISABLE(2const)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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