- "select bench.mark, SEC_TO_TIME(SUM(TIME_TO_SEC(bench.time)) - SUM(TIME_TO_SEC(bench1.time))) as gc_hoverhead from bench, bench as bench1 where bench.mark = bench1.mark and bench.test = bench1.test and bench.options = 'gc-on' and bench1.options = 'gc-off' and bench.compilation = bench1.compilation group by mark;"
+ "select bench.mark, SEC_TO_TIME(SUM(TIME_TO_SEC(bench.time)) - SUM(TIME_TO_SEC(bench1.time))) as gc_hoverhead from bench, bench as bench1 where bench.mark = bench1.mark and bench.test = bench1.test and bench.options = 'gc-on' and bench1.options = 'gc-off' and bench.compilation = bench1.compilation group by mark LIMIT 0,$query_limit;"