diff options
Diffstat (limited to 'src/util.cpp')
| -rw-r--r-- | src/util.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/util.cpp b/src/util.cpp index 78c353dfe5..6f812d9104 100644 --- a/src/util.cpp +++ b/src/util.cpp @@ -72,6 +72,10 @@ #include <sys/prctl.h> #endif +#ifdef HAVE_MALLOPT_ARENA_MAX +#include <malloc.h> +#endif + #include <boost/algorithm/string/case_conv.hpp> // for to_lower() #include <boost/algorithm/string/join.hpp> #include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith() @@ -792,6 +796,16 @@ void RenameThread(const char* name) void SetupEnvironment() { +#ifdef HAVE_MALLOPT_ARENA_MAX + // glibc-specific: On 32-bit systems set the number of arenas to 1. + // By default, since glibc 2.10, the C library will create up to two heap + // arenas per core. This is known to cause excessive virtual address space + // usage in our usage. Work around it by setting the maximum number of + // arenas to 1. + if (sizeof(void*) == 4) { + mallopt(M_ARENA_MAX, 1); + } +#endif // On most POSIX systems (e.g. Linux, but not BSD) the environment's locale // may be invalid, in which case the "C" locale is used as fallback. #if !defined(WIN32) && !defined(MAC_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__) |