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author | Wladimir J. van der Laan <laanwj@gmail.com> | 2017-03-30 09:37:47 +0200 |
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committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2017-03-31 11:48:59 +0200 |
commit | e4c9a90fe9aa702d2e1f7d932fc29a9c9f23fd4a (patch) | |
tree | 5f97709bfea79eb0c829cb7b77ae48d060cb8c89 /src | |
parent | f59e3dfc599ca9a30a1189e9a5bb033923498af2 (diff) | |
download | bitcoin-e4c9a90fe9aa702d2e1f7d932fc29a9c9f23fd4a.tar.xz |
util: Work around (virtual) memory exhaustion on 32-bit w/ glibc
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.
Github-Pull: #10120
Rebased-From: 625488ace5c41ccba1b68323a72588000782f820
Diffstat (limited to 'src')
-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__) |