diff --git a/compiler-rt/lib/memprof/memprof_flags.inc b/compiler-rt/lib/memprof/memprof_flags.inc
--- a/compiler-rt/lib/memprof/memprof_flags.inc
+++ b/compiler-rt/lib/memprof/memprof_flags.inc
@@ -35,7 +35,7 @@
              "realloc(p, 0) is equivalent to free(p) by default (Same as the "
              "POSIX standard). If set to false, realloc(p, 0) will return a "
              "pointer to an allocated space which can not be used.")
-MEMPROF_FLAG(bool, print_text, true,
+MEMPROF_FLAG(bool, print_text, false,
   "If set, prints the heap profile in text format. Else use the raw binary serialization format.")
 MEMPROF_FLAG(bool, print_terse, false,
              "If set, prints memory profile in a terse format. Only applicable if print_text = true.")
diff --git a/compiler-rt/test/memprof/lit.cfg.py b/compiler-rt/test/memprof/lit.cfg.py
--- a/compiler-rt/test/memprof/lit.cfg.py
+++ b/compiler-rt/test/memprof/lit.cfg.py
@@ -29,12 +29,14 @@
 
 # Platform-specific default MEMPROF_OPTIONS for lit tests.
 default_memprof_opts = list(config.default_sanitizer_opts)
+# Set the default to print text to simplify tests.
+default_memprof_opts.append('print_text=true')
 
 default_memprof_opts_str = ':'.join(default_memprof_opts)
 if default_memprof_opts_str:
   config.environment['MEMPROF_OPTIONS'] = default_memprof_opts_str
 config.substitutions.append(('%env_memprof_opts=',
-                             'env MEMPROF_OPTIONS=' + default_memprof_opts_str))
+                             'env MEMPROF_OPTIONS=' + default_memprof_opts_str + ':'))
 
 # Setup source root.
 config.test_source_root = os.path.dirname(__file__)