diff options
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/tunables.texi | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/manual/tunables.texi b/manual/tunables.texi index 776fd93fd9..c28360adcd 100644 --- a/manual/tunables.texi +++ b/manual/tunables.texi @@ -653,6 +653,23 @@ support in the kernel if this tunable has any non-zero value. The default value is @samp{0}, which disables all memory tagging. @end deftp +@deftp Tunable glibc.mem.decorate_maps +If the kernel supports naming anonymous virtual memory areas (since +Linux version 5.17, although not always enabled by some kernel +configurations), this tunable can be used to control whether +@theglibc{} decorates the underlying memory obtained from operating +system with a string describing its usage (for instance, on the thread +stack created by @code{ptthread_create} or memory allocated by +@code{malloc}). + +The process mappings can be obtained by reading the @code{/proc/<pid>maps} +(with @code{pid} being either the @dfn{process ID} or @code{self} for the +process own mapping). + +This tunable takes a value of 0 and 1, where 1 enables the feature. +The default value is @samp{0}, which disables the decoration. +@end deftp + @node gmon Tunables @section gmon Tunables @cindex gmon tunables |