Create ash memory monitor

base/process_util_linux.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/process_util.h"
 
 #include <dirent.h>
 #include <malloc.h>
 #include <sys/time.h>
 #include <sys/types.h>
@@ skipping 659 matching lines @@
   // usually video memory otherwise invisible to the OS.  Unfortunately, the
   // meminfo format varies on different hardware so we have to search for the
   // string.  It always appears after "Cached:".
   for (size_t i = kMemCachedIndex+2; i < meminfo_fields.size(); i += 3) {
     if (meminfo_fields[i] == "Shmem:") {
       base::StringToInt(meminfo_fields[i+1], &meminfo->shmem);
       break;
     }
   }
 #endif
+
+  // Check for gem data and report if present.
+  FilePath geminfo_file("/sys/kernel/debug/dri/0/i915_gem_objects");
+  std::string geminfo_data;
+  meminfo->gem_objects = -1;
+  meminfo->gem_size = -1;
+  if (file_util::ReadFileToString(geminfo_file, &geminfo_data)) {
+    int gem_objects = -1;
+    long long gem_size = -1;
+    int num_res = sscanf(geminfo_data.c_str(),
+                         "%d objects, %lld bytes",
+                         &gem_objects, &gem_size);
+    if (num_res == 2) {
+      meminfo->gem_objects = gem_objects;
+      meminfo->gem_size = gem_size;
+    }
+  }
+
   return true;
 }
 
 size_t GetSystemCommitCharge() {
   SystemMemoryInfoKB meminfo;
   if (!GetSystemMemoryInfo(&meminfo))
     return 0;
   return meminfo.total - meminfo.free - meminfo.buffers - meminfo.cached;
 }
 
@@ skipping 150 matching lines @@
     int score_len = static_cast<int>(score_str.length());
     return (score_len == file_util::WriteFile(oom_file,
                                               score_str.c_str(),
                                               score_len));
   }
 
   return false;
 }
 
 }  // namespace base