Tom Lane wrote:
> Well, in fact it's not just a question of disk space.
>
> The following numbers are stats for total elapsed time of "make
> installcheck" over ten trials:
>
<snip>
> I'm not sure about the trend of increasing standard deviation --- that
> may reflect more disk I/O being done, and perhaps more checkpoints
> occurring during the test. But in any case it's clear that there's a
> nontrivial runtime cost here. Does a 10% slowdown bother you?
Hmmm -- didn't Neil do some kind of test that had different results,
i.e. not much performance difference? I wonder if the large number of
DDL commands in installcheck doesn't skew the results against longer
NAMEDATALEN compared to other benchmarks?
# pwd
/opt/src/pgsql/src/test/regress/sql
# grep -i 'CREATE\|DROP' * | wc -l 1114
Joe