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<div class="title">disk-io-mgr-stress.h</div> </div>
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<a href="disk-io-mgr-stress_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>&#160;<span class="comment">// Copyright 2012 Cloudera Inc.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<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>&#160;<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>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<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>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<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>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<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>&#160;<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>&#160;<span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#ifndef IMPALA_RUNTIME_DISK_IO_MGR_STRESS_H</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define IMPALA_RUNTIME_DISK_IO_MGR_STRESS_H</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;boost/scoped_ptr.hpp&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;boost/thread/mutex.hpp&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;boost/thread/condition_variable.hpp&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;boost/thread/thread.hpp&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;boost/unordered_map.hpp&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="disk-io-mgr_8h.html">runtime/disk-io-mgr.h</a>&quot;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="mem-tracker_8h.html">runtime/mem-tracker.h</a>&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="thread-resource-mgr_8h.html">runtime/thread-resource-mgr.h</a>&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">namespace </span>impala {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html"> 36</a></span>&#160;<span class="keyword">class </span><a class="code" href="classimpala_1_1DiskIoMgrStress.html">DiskIoMgrStress</a> {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <a class="code" href="classimpala_1_1DiskIoMgrStress.html#acf1271a0c0f31ffe149c1ad0fcdf0e3b">DiskIoMgrStress</a>(<span class="keywordtype">int</span> num_disks, <span class="keywordtype">int</span> num_threads_per_disk, <span class="keywordtype">int</span> num_clients,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordtype">bool</span> includes_cancellation);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a6b4b31d6bf2600c6dceb296c8a4eb494">Run</a>(<span class="keywordtype">int</span> sec);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keyword">struct </span><a class="code" href="structDiskIoMgrStress_1_1Client.html">Client</a>;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structimpala_1_1DiskIoMgrStress_1_1File.html"> 47</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structimpala_1_1DiskIoMgrStress_1_1File.html">File</a> {</div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="structimpala_1_1DiskIoMgrStress_1_1File.html#ab07985ce74b9db916ba175fb79d17d19"> 48</a></span>&#160; std::string <a class="code" href="structimpala_1_1DiskIoMgrStress_1_1File.html#ab07985ce74b9db916ba175fb79d17d19">filename</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structimpala_1_1DiskIoMgrStress_1_1File.html#a9d7fce72b35a09f53a2b3ad65ff15f58"> 49</a></span>&#160; std::string <a class="code" href="structimpala_1_1DiskIoMgrStress_1_1File.html#a9d7fce72b35a09f53a2b3ad65ff15f58">data</a>; <span class="comment">// the data in the file, used to validate</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; };</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#a9e22b52eb543f9701545e033644035fc"> 55</a></span>&#160; std::vector&lt;File&gt; <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a9e22b52eb543f9701545e033644035fc">files_</a>;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#a2bbe68e951015faaed24c77397708182"> 58</a></span>&#160; <a class="code" href="classimpala_1_1MemTracker.html">MemTracker</a> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a2bbe68e951015faaed24c77397708182">dummy_tracker_</a>;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#a31585d1ce2c805c621f745acd9175870"> 61</a></span>&#160; boost::scoped_ptr&lt;DiskIoMgr&gt; <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a31585d1ce2c805c621f745acd9175870">io_mgr_</a>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#ae187f8a8e55155181b0ae72b7a1b969d"> 64</a></span>&#160; boost::thread_group <a class="code" href="classimpala_1_1DiskIoMgrStress.html#ae187f8a8e55155181b0ae72b7a1b969d">readers_</a>;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#ac7e60e998ed562d9c782957c0f648fd8"> 67</a></span>&#160; <span class="keywordtype">int</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#ac7e60e998ed562d9c782957c0f648fd8">num_clients_</a>;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#a6e9031a17f4abc61c04f335540d1cddf"> 68</a></span>&#160; <a class="code" href="structDiskIoMgrStress_1_1Client.html">Client</a>* <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a6e9031a17f4abc61c04f335540d1cddf">clients_</a>;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;</div>
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#a5e7f8224b852974cf5dca3b1fcaf4509"> 71</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a5e7f8224b852974cf5dca3b1fcaf4509">includes_cancellation_</a>;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="classimpala_1_1DiskIoMgrStress.html#abe1a5cd193800d3c704be2dc61746614"> 74</a></span>&#160; <span class="keyword">volatile</span> <span class="keywordtype">bool</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#abe1a5cd193800d3c704be2dc61746614">shutdown_</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#aa753dad3780180c37a6b2855a5e0579e">NewClient</a>(<span class="keywordtype">int</span> i);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a3e78d8953d71bab86818f9c4ec2f3a28">ClientThread</a>(<span class="keywordtype">int</span> client_id);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classimpala_1_1DiskIoMgrStress.html#a4f0b851c243b8e0a1020155ab26354a6">CancelRandomReader</a>();</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;};</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;}</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a9e22b52eb543f9701545e033644035fc"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a9e22b52eb543f9701545e033644035fc">impala::DiskIoMgrStress::files_</a></div><div class="ttdeci">std::vector&lt; File &gt; files_</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00055">disk-io-mgr-stress.h:55</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_acf1271a0c0f31ffe149c1ad0fcdf0e3b"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#acf1271a0c0f31ffe149c1ad0fcdf0e3b">impala::DiskIoMgrStress::DiskIoMgrStress</a></div><div class="ttdeci">DiskIoMgrStress(int num_disks, int num_threads_per_disk, int num_clients, bool includes_cancellation)</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00064">disk-io-mgr-stress.cc:64</a></div></div>
<div class="ttc" id="structDiskIoMgrStress_1_1Client_html"><div class="ttname"><a href="structDiskIoMgrStress_1_1Client.html">impala::DiskIoMgrStress::Client</a></div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00055">disk-io-mgr-stress.cc:55</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_ae187f8a8e55155181b0ae72b7a1b969d"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#ae187f8a8e55155181b0ae72b7a1b969d">impala::DiskIoMgrStress::readers_</a></div><div class="ttdeci">boost::thread_group readers_</div><div class="ttdoc">Thread group for reader threads. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00064">disk-io-mgr-stress.h:64</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_ac7e60e998ed562d9c782957c0f648fd8"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#ac7e60e998ed562d9c782957c0f648fd8">impala::DiskIoMgrStress::num_clients_</a></div><div class="ttdeci">int num_clients_</div><div class="ttdoc">Array of clients. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00067">disk-io-mgr-stress.h:67</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a5e7f8224b852974cf5dca3b1fcaf4509"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a5e7f8224b852974cf5dca3b1fcaf4509">impala::DiskIoMgrStress::includes_cancellation_</a></div><div class="ttdeci">bool includes_cancellation_</div><div class="ttdoc">If true, tests cancelling readers. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00071">disk-io-mgr-stress.h:71</a></div></div>
<div class="ttc" id="mem-tracker_8h_html"><div class="ttname"><a href="mem-tracker_8h.html">mem-tracker.h</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_abe1a5cd193800d3c704be2dc61746614"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#abe1a5cd193800d3c704be2dc61746614">impala::DiskIoMgrStress::shutdown_</a></div><div class="ttdeci">volatile bool shutdown_</div><div class="ttdoc">Flag to signal that client reader threads should exit. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00074">disk-io-mgr-stress.h:74</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a31585d1ce2c805c621f745acd9175870"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a31585d1ce2c805c621f745acd9175870">impala::DiskIoMgrStress::io_mgr_</a></div><div class="ttdeci">boost::scoped_ptr&lt; DiskIoMgr &gt; io_mgr_</div><div class="ttdoc">io manager </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00061">disk-io-mgr-stress.h:61</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html">impala::DiskIoMgrStress</a></div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00036">disk-io-mgr-stress.h:36</a></div></div>
<div class="ttc" id="disk-io-mgr_8h_html"><div class="ttname"><a href="disk-io-mgr_8h.html">disk-io-mgr.h</a></div></div>
<div class="ttc" id="structimpala_1_1DiskIoMgrStress_1_1File_html"><div class="ttname"><a href="structimpala_1_1DiskIoMgrStress_1_1File.html">impala::DiskIoMgrStress::File</a></div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00047">disk-io-mgr-stress.h:47</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_aa753dad3780180c37a6b2855a5e0579e"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#aa753dad3780180c37a6b2855a5e0579e">impala::DiskIoMgrStress::NewClient</a></div><div class="ttdeci">void NewClient(int i)</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00204">disk-io-mgr-stress.cc:204</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a3e78d8953d71bab86818f9c4ec2f3a28"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a3e78d8953d71bab86818f9c4ec2f3a28">impala::DiskIoMgrStress::ClientThread</a></div><div class="ttdeci">void ClientThread(int client_id)</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00094">disk-io-mgr-stress.cc:94</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a2bbe68e951015faaed24c77397708182"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a2bbe68e951015faaed24c77397708182">impala::DiskIoMgrStress::dummy_tracker_</a></div><div class="ttdeci">MemTracker dummy_tracker_</div><div class="ttdoc">Dummy mem tracker. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00058">disk-io-mgr-stress.h:58</a></div></div>
<div class="ttc" id="classimpala_1_1MemTracker_html"><div class="ttname"><a href="classimpala_1_1MemTracker.html">impala::MemTracker</a></div><div class="ttdoc">This class is thread-safe. </div><div class="ttdef"><b>Definition:</b> <a href="mem-tracker_8h_source.html#l00061">mem-tracker.h:61</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a4f0b851c243b8e0a1020155ab26354a6"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a4f0b851c243b8e0a1020155ab26354a6">impala::DiskIoMgrStress::CancelRandomReader</a></div><div class="ttdeci">void CancelRandomReader()</div><div class="ttdoc">Possibly cancels a random reader. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00165">disk-io-mgr-stress.cc:165</a></div></div>
<div class="ttc" id="structimpala_1_1DiskIoMgrStress_1_1File_html_ab07985ce74b9db916ba175fb79d17d19"><div class="ttname"><a href="structimpala_1_1DiskIoMgrStress_1_1File.html#ab07985ce74b9db916ba175fb79d17d19">impala::DiskIoMgrStress::File::filename</a></div><div class="ttdeci">std::string filename</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00048">disk-io-mgr-stress.h:48</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a6e9031a17f4abc61c04f335540d1cddf"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a6e9031a17f4abc61c04f335540d1cddf">impala::DiskIoMgrStress::clients_</a></div><div class="ttdeci">Client * clients_</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00068">disk-io-mgr-stress.h:68</a></div></div>
<div class="ttc" id="classimpala_1_1DiskIoMgrStress_html_a6b4b31d6bf2600c6dceb296c8a4eb494"><div class="ttname"><a href="classimpala_1_1DiskIoMgrStress.html#a6b4b31d6bf2600c6dceb296c8a4eb494">impala::DiskIoMgrStress::Run</a></div><div class="ttdeci">void Run(int sec)</div><div class="ttdoc">Run the test for &#39;sec&#39;. If 0, run forever. </div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8cc_source.html#l00174">disk-io-mgr-stress.cc:174</a></div></div>
<div class="ttc" id="thread-resource-mgr_8h_html"><div class="ttname"><a href="thread-resource-mgr_8h.html">thread-resource-mgr.h</a></div></div>
<div class="ttc" id="structimpala_1_1DiskIoMgrStress_1_1File_html_a9d7fce72b35a09f53a2b3ad65ff15f58"><div class="ttname"><a href="structimpala_1_1DiskIoMgrStress_1_1File.html#a9d7fce72b35a09f53a2b3ad65ff15f58">impala::DiskIoMgrStress::File::data</a></div><div class="ttdeci">std::string data</div><div class="ttdef"><b>Definition:</b> <a href="disk-io-mgr-stress_8h_source.html#l00049">disk-io-mgr-stress.h:49</a></div></div>
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