linux-ramdump-parser-v2: Make the page print outs more useful

The pagetype info gives useful data but it's helpful to see the data
in other formats that often involve having to do math. Make the parser
do the math of calculating the total number of pages per migrate type
and the total number of pages per order. Additionally, print out the
total number of ram pages with vmstat to make it easier to determine
just how low a system may be on memory.

Change-Id: I812288fe4c25de06c7017fb0b6515e514f799134

linux-ramdump-parser-v2/parsers/pagetypeinfo.py

-# Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+# Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 and
@@ -28,6 +28,9 @@ class Pagetypeinfo(RamParser):
         zname = ramdump.read_cstring(zname_addr, 12)
         is_corrupt = False
         total_bytes = 0
+        total_pages = 0
+        total_orders = [0]*11
+        total_orders_str = 'Total pages:                    '
 
         for mtype in range(0, migrate_types):
             mname_addr = ramdump.read_word(migratetype_names + mtype * 4)
@@ -35,6 +38,7 @@ class Pagetypeinfo(RamParser):
             pageinfo = ('zone {0:8} type {1:12} '.format(zname, mname))
             nums = ''
             total_type_bytes = 0
+            total_type_pages = 0
             for order in range(0, 11):
 
                 area = zone + free_area_offset + order * free_area_size
@@ -57,12 +61,18 @@ class Pagetypeinfo(RamParser):
                 nums = nums + ('{0:6}'.format(pg_count))
                 total_type_bytes = total_type_bytes + \
                     pg_count * 4096 * (2 ** order)
+                total_type_pages = total_type_pages + pg_count * (2 ** order)
+                total_orders[order] += pg_count
             print_out_str(pageinfo + nums +
-                          ' = {0} MB'.format(total_type_bytes / (1024 * 1024)))
+                          ' = {0} MB {1} pages'.format(total_type_bytes / (1024 * 1024), total_type_pages))
             total_bytes = total_bytes + total_type_bytes
+            total_pages = total_pages + total_type_pages
+        for order in range(0, 11):
+            total_orders_str += '{0:6}'.format(total_orders[order])
+        print_out_str(total_orders_str)
 
-        print_out_str('Approximate total for zone {0}: {1} MB\n'.format(
-            zname, total_bytes / (1024 * 1024)))
+        print_out_str('Approximate total for zone {0}: {1} MB, {2} pages\n'.format(
+            zname, total_bytes / (1024 * 1024), total_pages))
         if is_corrupt:
             print_out_str(
                 '!!! Numbers may not be accurate due to list corruption!')

linux-ramdump-parser-v2/parsers/vmstat.py

-# Copyright (c) 2013, The Linux Foundation. All rights reserved.
+# Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 and
@@ -66,3 +66,4 @@ class ZoneInfo(RamParser):
         for i in xrange(0, max_zone_stats):
             print_out_str('{0:30}: {1:8}'.format(vmstat_names[i], self.ramdump.read_word(
                 self.ramdump.array_index(vmstats_addr, 'atomic_long_t', i))))
+        print_out_str('Total system pages: {0}'.format(self.ramdump.read_word(self.ramdump.addr_lookup('totalram_pages'))))