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     <h4 class="title">
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      30.4.3.23 The ps_check_lost_instrumentation View
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  <p>
   This view returns information about lost Performance Schema
          instruments, to indicate whether the Performance Schema is
          unable to monitor all runtime data.
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  <p>
   The
   <a class="link" href="sys-ps-check-lost-instrumentation.html" title="30.4.3.23 The ps_check_lost_instrumentation View">
    <code class="literal">
     ps_check_lost_instrumentation
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   view has these columns:
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      <code class="literal">
       variable_name
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     <p>
      The Performance Schema status variable name indicating
              which type of instrument was lost.
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      <code class="literal">
       variable_value
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     <p>
      The number of instruments lost.
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