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| <div class="title">mem-info.h</div> </div> |
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| <a href="mem-info_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2012 Cloudera Inc.</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifndef IMPALA_UTIL_MEM_INFO_H</span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor"></span><span class="preprocessor">#define IMPALA_UTIL_MEM_INFO_H</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <string></span></div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <boost/cstdint.hpp></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "<a class="code" href="logging_8h.html">common/logging.h</a>"</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>impala {</div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html"> 30</a></span> <span class="keyword">class </span><a class="code" href="classimpala_1_1MemInfo.html">MemInfo</a> {</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">public</span>:</div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1MemInfo.html#a36504159f8d2ea6b3d265c3d99a89922">Init</a>();</div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div> |
| <div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#a342aefbbb2b19bbb37073c1fa5aaeddd"> 36</a></span>  <span class="keyword">static</span> int64_t <a class="code" href="classimpala_1_1MemInfo.html#a342aefbbb2b19bbb37073c1fa5aaeddd">physical_mem</a>() {</div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  DCHECK(<a class="code" href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016">initialized_</a>);</div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1MemInfo.html#abef8ff0d278d57fe04eb72c55e2233a4">physical_mem_</a>;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> |
| <div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#a94ddf8f88f892dc81fb21a7aa431d386"> 42</a></span>  <span class="keyword">static</span> int32_t <a class="code" href="classimpala_1_1MemInfo.html#a94ddf8f88f892dc81fb21a7aa431d386">vm_overcommit</a>() {</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  DCHECK(<a class="code" href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016">initialized_</a>);</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1MemInfo.html#a9d27d60445c5b4110c2d8c09bf78085f">vm_overcommit_</a>;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  }</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div> |
| <div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#acb17aa5826d459ad4e348fb6227b0b9d"> 49</a></span>  <span class="keyword">static</span> int64_t <a class="code" href="classimpala_1_1MemInfo.html#acb17aa5826d459ad4e348fb6227b0b9d">commit_limit</a>() {</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  DCHECK(<a class="code" href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016">initialized_</a>);</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">return</span> <a class="code" href="classimpala_1_1MemInfo.html#abe3eae7b0e72893edceed688f17b6537">commit_limit_</a>;</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  }</div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">static</span> std::string <a class="code" href="classimpala_1_1MemInfo.html#a4c5f6432dc23cbb658d6efc0c308a3bf">DebugString</a>();</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">private</span>:</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1MemInfo.html#adbfca7fb0d410a1c4efd3df291343474">ParseOvercommit</a>();</div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div> |
| <div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016"> 60</a></span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016">initialized_</a>;</div> |
| <div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#abef8ff0d278d57fe04eb72c55e2233a4"> 61</a></span>  <span class="keyword">static</span> int64_t <a class="code" href="classimpala_1_1MemInfo.html#abef8ff0d278d57fe04eb72c55e2233a4">physical_mem_</a>;</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">//(e.g. heuristic based / always / strict)</span></div> |
| <div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#a9d27d60445c5b4110c2d8c09bf78085f"> 70</a></span>  <span class="keyword">static</span> int32_t <a class="code" href="classimpala_1_1MemInfo.html#a9d27d60445c5b4110c2d8c09bf78085f">vm_overcommit_</a>;</div> |
| <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> |
| <div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classimpala_1_1MemInfo.html#abe3eae7b0e72893edceed688f17b6537"> 73</a></span>  <span class="keyword">static</span> int64_t <a class="code" href="classimpala_1_1MemInfo.html#abe3eae7b0e72893edceed688f17b6537">commit_limit_</a>;</div> |
| <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> };</div> |
| <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div> |
| <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div> |
| <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#endif</span></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a9d27d60445c5b4110c2d8c09bf78085f"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a9d27d60445c5b4110c2d8c09bf78085f">impala::MemInfo::vm_overcommit_</a></div><div class="ttdeci">static int32_t vm_overcommit_</div><div class="ttdoc">Indicating the kernel overcommit settings. </div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00070">mem-info.h:70</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a342aefbbb2b19bbb37073c1fa5aaeddd"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a342aefbbb2b19bbb37073c1fa5aaeddd">impala::MemInfo::physical_mem</a></div><div class="ttdeci">static int64_t physical_mem()</div><div class="ttdoc">Get total physical memory in bytes (ignores cgroups memory limits). </div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00036">mem-info.h:36</a></div></div> |
| <div class="ttc" id="logging_8h_html"><div class="ttname"><a href="logging_8h.html">logging.h</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a36504159f8d2ea6b3d265c3d99a89922"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a36504159f8d2ea6b3d265c3d99a89922">impala::MemInfo::Init</a></div><div class="ttdeci">static void Init()</div><div class="ttdoc">Initialize MemInfo. </div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8cc_source.html#l00054">mem-info.cc:54</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_abef8ff0d278d57fe04eb72c55e2233a4"><div class="ttname"><a href="classimpala_1_1MemInfo.html#abef8ff0d278d57fe04eb72c55e2233a4">impala::MemInfo::physical_mem_</a></div><div class="ttdeci">static int64_t physical_mem_</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00061">mem-info.h:61</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a94ddf8f88f892dc81fb21a7aa431d386"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a94ddf8f88f892dc81fb21a7aa431d386">impala::MemInfo::vm_overcommit</a></div><div class="ttdeci">static int32_t vm_overcommit()</div><div class="ttdoc">Returns the systems memory overcommit settings, typically the values are 0,1, and 2...</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00042">mem-info.h:42</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a4c5f6432dc23cbb658d6efc0c308a3bf"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a4c5f6432dc23cbb658d6efc0c308a3bf">impala::MemInfo::DebugString</a></div><div class="ttdeci">static std::string DebugString()</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8cc_source.html#l00096">mem-info.cc:96</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_adbfca7fb0d410a1c4efd3df291343474"><div class="ttname"><a href="classimpala_1_1MemInfo.html#adbfca7fb0d410a1c4efd3df291343474">impala::MemInfo::ParseOvercommit</a></div><div class="ttdeci">static void ParseOvercommit()</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8cc_source.html#l00091">mem-info.cc:91</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html"><div class="ttname"><a href="classimpala_1_1MemInfo.html">impala::MemInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00030">mem-info.h:30</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_a4d841d7424696bc0fc1f3c39aa787016"><div class="ttname"><a href="classimpala_1_1MemInfo.html#a4d841d7424696bc0fc1f3c39aa787016">impala::MemInfo::initialized_</a></div><div class="ttdeci">static bool initialized_</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00060">mem-info.h:60</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_abe3eae7b0e72893edceed688f17b6537"><div class="ttname"><a href="classimpala_1_1MemInfo.html#abe3eae7b0e72893edceed688f17b6537">impala::MemInfo::commit_limit_</a></div><div class="ttdeci">static int64_t commit_limit_</div><div class="ttdoc">If overcommit is turned off the maximum allocatable memory. </div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00073">mem-info.h:73</a></div></div> |
| <div class="ttc" id="classimpala_1_1MemInfo_html_acb17aa5826d459ad4e348fb6227b0b9d"><div class="ttname"><a href="classimpala_1_1MemInfo.html#acb17aa5826d459ad4e348fb6227b0b9d">impala::MemInfo::commit_limit</a></div><div class="ttdeci">static int64_t commit_limit()</div><div class="ttdef"><b>Definition:</b> <a href="mem-info_8h_source.html#l00049">mem-info.h:49</a></div></div> |
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