diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 21bf7f5a3cf51a1a42e3169daa738c8e7e0a8d83..19d435a9623b542cc6b53411eb91b92276731e3b 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -26,7 +26,7 @@ static inline unsigned long long rdclock(void)
 }
 
 #ifndef MAX_NR_CPUS
-#define MAX_NR_CPUS			1024
+#define MAX_NR_CPUS			2048
 #endif
 
 extern const char *input_name;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 492ab973d17cf7926ce74eea2c9c3478c2933160..1b690cefc9d91b22148d7d9c8eaa6f8a381bb7f4 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1173,7 +1173,7 @@ static int build_caches(struct cpu_cache_level caches[], u32 size, u32 *cntp)
 	return 0;
 }
 
-#define MAX_CACHES 2000
+#define MAX_CACHES (MAX_NR_CPUS * 4)
 
 static int write_cache(struct feat_fd *ff,
 		       struct perf_evlist *evlist __maybe_unused)