1# pmm<a name="ZH-CN_TOPIC_0000001179965839"></a> 2 3- [命令功能](#section445335110416) 4- [命令格式](#section1795712553416) 5- [参数说明](#section92544592410) 6- [使用指南](#section104151141252) 7- [使用实例](#section11545171957) 8- [输出说明](#section075617368542) 9 10## 命令功能<a name="section445335110416"></a> 11 12查看系统内存物理页及pagecache物理页使用情况。 13 14## 命令格式<a name="section1795712553416"></a> 15 16pmm 17 18## 参数说明<a name="section92544592410"></a> 19 20无 21 22## 使用指南<a name="section104151141252"></a> 23 24Debug版本才具备的命令。 25 26## 使用实例<a name="section11545171957"></a> 27 28输入pmm 29 30## 输出说明<a name="section075617368542"></a> 31 32**图 1** 查看物理页使用情况<a name="fig19209202618618"></a> 33 34 35**表 1** 输出说明 36 37<a name="table5579102611579"></a> 38<table><thead align="left"><tr id="row12579162613572"><th class="cellrowborder" valign="top" width="50%" id="mcps1.2.3.1.1"><p id="p18579122619578"><a name="p18579122619578"></a><a name="p18579122619578"></a>输出</p> 39</th> 40<th class="cellrowborder" valign="top" width="50%" id="mcps1.2.3.1.2"><p id="p11579182635718"><a name="p11579182635718"></a><a name="p11579182635718"></a>说明</p> 41</th> 42</tr> 43</thead> 44<tbody><tr id="row1457942675720"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p2058042605713"><a name="p2058042605713"></a><a name="p2058042605713"></a>phys_seg</p> 45</td> 46<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1058062614579"><a name="p1058062614579"></a><a name="p1058062614579"></a>物理页控制块地址信息</p> 47</td> 48</tr> 49<tr id="row14580192616575"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p858062615712"><a name="p858062615712"></a><a name="p858062615712"></a>base</p> 50</td> 51<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1858082617577"><a name="p1858082617577"></a><a name="p1858082617577"></a>第一个物理页地址，即物理页内存起始地址</p> 52</td> 53</tr> 54<tr id="row17580826115719"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p5580226155713"><a name="p5580226155713"></a><a name="p5580226155713"></a>size</p> 55</td> 56<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p85808262572"><a name="p85808262572"></a><a name="p85808262572"></a>物理页内存大小</p> 57</td> 58</tr> 59<tr id="row161931831175912"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p201931631185913"><a name="p201931631185913"></a><a name="p201931631185913"></a>free_pages</p> 60</td> 61<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1919383125911"><a name="p1919383125911"></a><a name="p1919383125911"></a>空闲物理页数量</p> 62</td> 63</tr> 64<tr id="row1397105119596"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p0397951175918"><a name="p0397951175918"></a><a name="p0397951175918"></a>active anon</p> 65</td> 66<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1139715117599"><a name="p1139715117599"></a><a name="p1139715117599"></a>pagecache中，活跃的匿名页数量</p> 67</td> 68</tr> 69<tr id="row16409173520010"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p941012351409"><a name="p941012351409"></a><a name="p941012351409"></a>inactive anon</p> 70</td> 71<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1341012355019"><a name="p1341012355019"></a><a name="p1341012355019"></a>pagecache中，不活跃的匿名页数量</p> 72</td> 73</tr> 74<tr id="row467016386014"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p10670103818015"><a name="p10670103818015"></a><a name="p10670103818015"></a>active file</p> 75</td> 76<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1267012382019"><a name="p1267012382019"></a><a name="p1267012382019"></a>pagecache中，活跃的文件页数量</p> 77</td> 78</tr> 79<tr id="row18966641507"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p5966741706"><a name="p5966741706"></a><a name="p5966741706"></a>inactive file</p> 80</td> 81<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p17966174115018"><a name="p17966174115018"></a><a name="p17966174115018"></a>pagecache中，不活跃的文件页数量</p> 82</td> 83</tr> 84<tr id="row13183445101"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.1 "><p id="p318394514018"><a name="p318394514018"></a><a name="p318394514018"></a>pmm pages</p> 85</td> 86<td class="cellrowborder" valign="top" width="50%" headers="mcps1.2.3.1.2 "><p id="p1218312452014"><a name="p1218312452014"></a><a name="p1218312452014"></a>total：总的物理页数，used：已使用的物理页数，free：空闲的物理页数</p> 87</td> 88</tr> 89</tbody> 90</table> 91 92