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Reduce concurrency when using glibc-based Linux

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to help prevent memory fragmentation
This commit is contained in:
Lovell Fuller
2021-03-09 21:58:47 +00:00
parent 58526cc849
commit 5a9cc835b3
6 changed files with 35 additions and 6 deletions
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16
src/utilities.cc
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@@ -225,3 +225,19 @@ Napi::Value _maxColourDistance(const Napi::CallbackInfo& info) {
return Napi::Number::New(env, maxColourDistance);
}
#if defined(__GNUC__)
// mallctl will be resolved by the runtime linker when jemalloc is being used
extern "C" {
int mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp, size_t newlen) __attribute__((weak));
}
Napi::Value _isUsingJemalloc(const Napi::CallbackInfo& info) {
Napi::Env env = info.Env();
return Napi::Boolean::New(env, mallctl != nullptr);
}
#else
Napi::Value _isUsingJemalloc(const Napi::CallbackInfo& info) {
Napi::Env env = info.Env();
return Napi::Boolean::New(env, false);
}
#endif