From 9d4e69b62e1f57d85025bccc76e217ae401004f9 Mon Sep 17 00:00:00 2001
From: alxmopo3ov <alxmopo3ov@yandex-team.com>
Date: Thu, 26 Mar 2026 18:13:33 +0300
Subject: ClearCache() method in NMalloc
 commit_hash:2a9ac53b44252aeea5188e821743fc79b064947b

---
 library/cpp/malloc/tcmalloc/malloc-info.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'library/cpp/malloc/tcmalloc/malloc-info.cpp')

diff --git a/library/cpp/malloc/tcmalloc/malloc-info.cpp b/library/cpp/malloc/tcmalloc/malloc-info.cpp
index fbcfa7ee06a..fc4603de595 100644
--- a/library/cpp/malloc/tcmalloc/malloc-info.cpp
+++ b/library/cpp/malloc/tcmalloc/malloc-info.cpp
@@ -1,4 +1,5 @@
 #include <library/cpp/malloc/api/malloc.h>
+#include <contrib/libs/tcmalloc/tcmalloc/internal_malloc_extension.h>
 
 using namespace NMalloc;
 
@@ -7,3 +8,10 @@ TMallocInfo NMalloc::MallocInfo() {
     r.Name = "tcmalloc";
     return r;
 }
+
+void NMalloc::ClearCaches() {
+    // not available on darwin, see internal_malloc_extension.h for details
+#ifndef _darwin_
+    MallocExtension_Internal_ReleaseMemoryToSystem(std::numeric_limits<size_t>::max());
+#endif
+}
-- 
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