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pg_test_timing utility, to measure clock monotonicity and timing cost.

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Ants Aasma, Greg Smith
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Robert Haas
2012-03-27 16:14:00 -04:00
parent 5b4f346611
commit cee523867d
9 changed files with 451 additions and 2 deletions
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doc/src/sgml/perform.sgml
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@@ -770,7 +770,9 @@ ROLLBACK;
network transmission costs and I/O conversion costs are not included.
Second, the measurement overhead added by <command>EXPLAIN
ANALYZE</command> can be significant, especially on machines with slow
<function>gettimeofday()</> operating-system calls.
<function>gettimeofday()</> operating-system calls. You can use the
<xref linkend="pgtesttiming"> tool to measure the overhead of timing
on your system.
</para>
<para>