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Performance

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- Introduced a new filter optimization that recognizes filters with no 'OR', or
  'XOR' operators, includes IDs, but does not include UUIDs.  This combination
  means completed.data is not referenced.
This commit is contained in:
Paul Beckingham 2012-04-24 00:53:04 -04:00
parent 35122154ef
commit 139011e1ae
2 changed files with 33 additions and 2 deletions
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32
src/commands/Command.cpp
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@ -338,8 +338,6 @@ void Command::filter (std::vector <Task>& output)
if (e.evalFilter (*task))
output.push_back (*task);
}
else
context.debug ("Command::filter skipping completed.data");
}
else
{
@ -372,7 +370,37 @@ bool Command::filter_shortcut (const A3& filter)
filter[0]._raw == "status" &&
filter[1]._raw.find ("pending") != std::string::npos &&
filter[2]._raw == "=")
{
context.debug ("Command::filter skipping completed.data (status:pending only)");
return true;
}
// Shortcut: If the filter contains no 'or' or 'xor' operators, IDs and no UUIDs.
int countId = 0;
int countUUID = 0;
int countOr = 0;
int countXor = 0;
std::vector <Arg>::const_iterator i;
for (i = filter.begin (); i != filter.end (); ++i)
{
if (i->_category == Arg::cat_op)
{
if (i->_raw == "or") ++countOr;
if (i->_raw == "xor") ++countXor;
}
else if (i->_category == Arg::cat_id) ++countId;
else if (i->_category == Arg::cat_uuid) ++countUUID;
}
if (countOr == 0 &&
countXor == 0 &&
countUUID == 0 &&
countId > 0)
{
context.debug ("Command::filter skipping completed.data (IDs, no OR, no XOR, no UUID)");
return true;
}
return false;
}