diff options
Diffstat (limited to 'src/util.cpp')
| -rw-r--r-- | src/util.cpp | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/src/util.cpp b/src/util.cpp index ba157625d..6f812d910 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() @@ -214,12 +218,13 @@ void OpenDebugLog() assert(vMsgsBeforeOpenLog); boost::filesystem::path pathDebug = GetDataDir() / "debug.log"; fileout = fopen(pathDebug.string().c_str(), "a"); - if (fileout) setbuf(fileout, NULL); // unbuffered - - // dump buffered messages from before we opened the log - while (!vMsgsBeforeOpenLog->empty()) { - FileWriteStr(vMsgsBeforeOpenLog->front(), fileout); - vMsgsBeforeOpenLog->pop_front(); + if (fileout) { + setbuf(fileout, NULL); // unbuffered + // dump buffered messages from before we opened the log + while (!vMsgsBeforeOpenLog->empty()) { + FileWriteStr(vMsgsBeforeOpenLog->front(), fileout); + vMsgsBeforeOpenLog->pop_front(); + } } delete vMsgsBeforeOpenLog; @@ -791,6 +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__) @@ -838,4 +853,4 @@ std::string CopyrightHolders(const std::string& strPrefix) strCopyrightHolders += "\n" + strPrefix + "The Bitcoin Core developers"; } return strCopyrightHolders; -} +}
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