Proposal: Use /usr/bin/top in about:memory...

chrome/browser/resources/about_memory_mac.html

Index: chrome/browser/resources/about_memory_mac.html
===================================================================
--- chrome/browser/resources/about_memory_mac.html	(revision 69842)
+++ chrome/browser/resources/about_memory_mac.html	(working copy)
@@ -22,12 +22,12 @@
   font-family: Helvetica, sans-serif;
 }
 table.list#browserComparison tr:not([class*='firstRow']) > *:nth-child(1),
-table.list#browserComparison tr:not([class*='firstRow']) > *:nth-child(4),
+table.list#browserComparison tr:not([class*='firstRow']) > *:nth-child(6),
 table.list#browserComparison tr.firstRow th:nth-child(1) {
   border-right: 1px solid #b5c6de;
 }
 table.list#memoryDetails tr:not([class*='firstRow']) > *:nth-child(2),
-table.list#memoryDetails tr:not([class*='firstRow']) > *:nth-child(5),
+table.list#memoryDetails tr:not([class*='firstRow']) > *:nth-child(7),
 table.list#memoryDetails tr.firstRow th:nth-child(2) {
   border-right: 1px solid #b5c6de;
 }
@@ -135,11 +135,13 @@
           <col class='name' />
           <col class='number' />
           <col class='number' />
+          <col class='number' />
+          <col class='number' />
         </colgroup>
         <tr class='firstRow doNotFilter'>
           <th>
           </th>
-          <th colspan='2'>
+          <th colspan='4'>
             Memory
             <div class='help'>
               <div>
@@ -152,6 +154,16 @@
                   This is the best indicator of browser memory resource usage.
                 </p>
                 <p>
+                  <strong>Shared:</strong>
+                  Amount of memory that is present in physical RAM and can
+                  be shared with another process.
+                </p>
+                <p>
+                  <strong>Private:</strong>
+                  Amount of memory that is present in physical RAM and can not
+                  be shared with another process.
+                </p>
+                <p>
                   <strong>Virtual:</strong>
                   Amount of address space allocated in virtual memory.
                 </p>
@@ -167,10 +179,16 @@
           <th class='name'>
             Browser
           </th>
-          <th class='name'>
+          <th class='number'>
             Resident
           </th>
           <th class='number'>
+            Shared

[Mark Mentovai, 2011/01/04 20:09:31]

What will the values in these columns look like if rshrd or rprvt weren’t
available?

I think it’d be better for them to show up as blank instead of 0.

[sail, 2011/01/06 19:48:26]

If rshrd or rprvt aren't available then they'll be displayed as N/A. This is
handled by the formatNumber() function in about_memory_mac.html.

+          </th>
+          <th class='number'>
+            Private
+          </th>
+          <th class='number'>
             Virtual
           </th>
         </tr>
@@ -184,6 +202,12 @@
             <span class='th' jscontent="formatNumber(ws_shareable)"></span><span class='k'>k</span>
           </td>
           <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_shared)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_priv)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
             <span class='th' jscontent="formatNumber(comm_priv)"></span><span class='k'>k</span>
           </td>
         </tr>
@@ -214,13 +238,15 @@
           <col class='name' />
           <col class='number' />
           <col class='number' />
+          <col class='number' />
+          <col class='number' />
         </colgroup>
         <tr class='firstRow doNotFilter'>
           <th>
           </th>
           <th>
           </th>
-          <th colspan='2'>
+          <th colspan='4'>
             Memory
           </th>
         </tr>
@@ -235,6 +261,12 @@
             Resident
           </th>
           <th class='number'>
+            Shared
+          </th>
+          <th class='number'>
+            Private
+          </th>
+          <th class='number'>
             Virtual
           </th>
         </tr>
@@ -252,6 +284,12 @@
             <span class='th' jscontent="formatNumber(ws_shareable)"></span><span class='k'>k</span>
           </td>
           <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_shared)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_priv)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
             <span class='th' jscontent="formatNumber(comm_priv)"></span><span class='k'>k</span>
           </td>
         </tr>
@@ -269,6 +307,12 @@
             <span class='th' jscontent="formatNumber(ws_shareable)"></span><span class='k'>k</span>
           </td>
           <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_shared)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
+            <span class='th' jscontent="formatNumber(ws_priv)"></span><span class='k'>k</span>
+          </td>
+          <td class='number'>
             <span class='th' jscontent="formatNumber(comm_priv)"></span><span class='k'>k</span>
           </td>
         </tr>