nanobench: print max RSS in debug mode too.

bench/nanobench.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "Benchmark.h"
@@ skipping 654 matching lines @@
             log->timer("min_ms",    stats.min);
             log->timer("median_ms", stats.median);
             log->timer("mean_ms",   stats.mean);
             log->timer("max_ms",    stats.max);
             log->timer("stddev_ms", sqrt(stats.var));
 
             if (kAutoTuneLoops != FLAGS_loops) {
                 if (targets.count() == 1) {
                     config = ""; // Only print the config if we run the same bench on more than one.
                 }
-                SkDebugf("%s\t%s\n", bench->getUniqueName(), config);
+                SkDebugf("%4dM\t%s\t%s\n"
+                         , sk_tools::getMaxResidentSetSizeMB()
+                         , bench->getUniqueName()
+                         , config);
             } else if (FLAGS_verbose) {
                 for (int i = 0; i < FLAGS_samples; i++) {
                     SkDebugf("%s  ", HUMANIZE(samples[i]));
                 }
                 SkDebugf("%s\n", bench->getUniqueName());
             } else if (FLAGS_quiet) {
                 if (targets.count() == 1) {
                     config = ""; // Only print the config if we run the same bench on more than one.
                 }
                 SkDebugf("%s\t%s\t%s\n", HUMANIZE(stats.median), bench->getUniqueName(), config);
@@ skipping 27 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif