rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Make pgbench vacuum before building indexes. 

This is apparently faster than doing things the other way around when
the scale factor is large.

Along the way, adjust -n to suppress vacuuming during initialization
as well as during test runs.

Jeff Janes, with some small changes by me.
This commit is contained in:
Robert Haas 2012-07-23 14:38:34 -04:00
parent b71258af56
commit 46b2b7e0ff
2 changed files with 22 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
contrib/pgbench/pgbench.c
View File

@ -345,6 +345,7 @@ usage(void)
" %s [OPTION]... [DBNAME]\n"
"\nInitialization options:\n"
" -i invokes initialization mode\n"
" -n do not run VACUUM after initialization\n"
" -F NUM fill factor\n"
" -s NUM scaling factor\n"
" --foreign-keys\n"
@ -1282,7 +1283,7 @@ disconnect_all(CState *state, int length)
/* create tables and setup data */
static void
init(void)
init(bool is_no_vacuum)
{
/*
* Note: TPC-B requires at least 100 bytes per row, and the "filler"
@ -1433,6 +1434,16 @@ init(void)
}
executeStatement(con, "commit");
/* vacuum */
if (!is_no_vacuum)
{
fprintf(stderr, "vacuum...\n");
executeStatement(con, "vacuum analyze pgbench_branches");
executeStatement(con, "vacuum analyze pgbench_tellers");
executeStatement(con, "vacuum analyze pgbench_accounts");
executeStatement(con, "vacuum analyze pgbench_history");
}
/*
* create indexes
*/
@ -1469,12 +1480,6 @@ init(void)
}
}
/* vacuum */
fprintf(stderr, "vacuum...");
executeStatement(con, "vacuum analyze pgbench_branches");
executeStatement(con, "vacuum analyze pgbench_tellers");
executeStatement(con, "vacuum analyze pgbench_accounts");
executeStatement(con, "vacuum analyze pgbench_history");
fprintf(stderr, "done.\n");
PQfinish(con);
@ -2139,7 +2144,7 @@ main(int argc, char **argv)
if (is_init_mode)
{
init();
init(is_no_vacuum);
exit(0);
}

9
doc/src/sgml/pgbench.sgml
View File

@ -157,6 +157,15 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-n</option></term>
<listitem>
<para>
Perform no vacuuming after initialization.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-F</option> <replaceable>fillfactor</></term>
<listitem>