Enhance pgbench -l option to add timestamp. Patch contributed by Greg
Smith. Along with Japanese doc updation by Tasuo Ishii. > This patch changes the way pgbench outputs its latency log files so that > every transaction gets a timestamp and notes which transaction type was > executed. It's a one-line change that just dumps some additional > information that was already sitting in that area of code. I also made a > couple of documentation corrections and clarifications on some of the more > confusing features of pgbench. > > It's straightforward to parse log files in this format to analyze what > happened during the test at a higher level than was possible with the > original format. You can find some rough sample code to convert this > latency format into CVS files and then into graphs at > http://www.westnet.com/~gsmith/content/postgresql/pgbench.htm which I'll > be expanding on once I get all my little patches sent in here.
This commit is contained in:
Tatsuo Ishii
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7e96269a82
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@ -1,4 +1,4 @@
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$PostgreSQL: pgsql/contrib/pgbench/README.pgbench,v 1.16 2007/04/06 08:49:44 ishii Exp $
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$PostgreSQL: pgsql/contrib/pgbench/README.pgbench,v 1.17 2007/04/06 09:16:15 ishii Exp $
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pgbench README
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@ -96,10 +96,14 @@ o options
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default is 1. NOTE: scaling factor should be at least
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as large as the largest number of clients you intend
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to test; else you'll mostly be measuring update contention.
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Regular (not initializing) runs using one of the
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built-in tests will detect scale based on the number of
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branches in the database. For custom (-f) runs it can
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be manually specified with this parameter.
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-D varname=value
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Define a variable. It can be refereed to by a script
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provided by using -f option. Multile -D options are allowed.
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Define a variable. It can be refered to by a script
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provided by using -f option. Multiple -D options are allowed.
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-U login
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Specify db user's login name if it is different from
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@ -141,9 +145,22 @@ o options
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with the name "pgbench_log.xxx", where xxx is the PID
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of the pgbench process. The format of the log is:
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client_id transaction_no time
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client_id transaction_no time file_no time-epoch time-us
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where time is measured in microseconds.
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where time is measured in microseconds, , the file_no is
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which test file was used (useful when multiple were
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specified with -f), and time-epoch/time-us are a
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UNIX epoch format timestamp followed by an offset
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in microseconds (suitable for creating a ISO 8601
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timestamp with a fraction of a second) of when
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the transaction completed.
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Here are example outputs:
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0 199 2241 0 1175850568 995598
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0 200 2465 0 1175850568 998079
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0 201 2513 0 1175850569 608
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0 202 2038 0 1175850569 2663
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-d
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debug option.
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@ -165,6 +182,8 @@ o What is the "transaction" actually performed in pgbench?
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(7) end;
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If you specify -N, (4) and (5) aren't included in the transaction.
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o -f option
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This supports for reading transaction script from a specified
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@ -1,4 +1,4 @@
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$PostgreSQL: pgsql/contrib/pgbench/README.pgbench_jis,v 1.17 2007/04/06 08:49:44 ishii Exp $
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$PostgreSQL: pgsql/contrib/pgbench/README.pgbench_jis,v 1.18 2007/04/06 09:16:16 ishii Exp $
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pgbench README
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@ -76,6 +76,13 @@ pgbench $B$K$O$$$m$$$m$J%*%W%7%g%s$,$"$j$^$9!%(B
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$B%G%U%)%k%H$N%9%1!<%j%s%0%U%!%/%?!<$O(B 1 $B$G$9!%(B
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-f $B%*%W%7%g%s$G;XDj$7$?%U%!%$%k$+$i%9%1!<%j%s%0%U%!%/(B
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$B%?!<$r;2>H$9$k$K$O(B scale $B$H$$$&JQ?tL>$r;HMQ$7$^$9!%(B
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$BCm0U(B: $B%9%1!<%j%s%0%U%!%/%?!<$O>/$J$/$H$b(B -c $B$G;XDj$5$l$kF1;~@\(B
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$BB3%f!<%6?t$HF1$8$+$=$l$h$j$bBg$-$/$7$F$/$@$5$$!%$G$J$$$H!$(B
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pgbench$B$N7k2L$O(BUPDATE$B$N6%9g$KBg$-$/1F6A$5$l$F$7$^$$$^$9!%(B
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$BAH9~$_$N%Y%s%A%^!<%/%Q%?!<%s$G$O!$(Bbraches$B$N?t(B(=braches$B%F!<%V%k(B
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$B$N9T?t(B)$B$,<+F0E*$K%9%1!<%j%s%0%U%!%/%?!<$K@_Dj$5$l$^$9!%(B
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$B%+%9%?%`%/%(%j(B(-f$B%*%W%7%g%s;HMQ(B)$B$G$O!$%9%1!<%j%s%0%U%!%/%?!<$O(B
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$B<+F0@_Dj$5$l$^$;$s!%(B
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-D varname=value
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@ -130,10 +137,24 @@ pgbench $B$K$O$$$m$$$m$J%*%W%7%g%s$,$"$j$^$9!%(B
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$B%+%l%s%H%G%#%l%/%H%j0J2<$N(Bpgbench_log.xxx$B$H$$$&%U%!%$(B
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$B%k$G$9!%%U%!%$%k$N%U%)!<%^%C%H$O!$(B
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$B%/%i%$%"%s%H(BID $B%H%i%s%6%/%7%g%sHV9f(B $B;~4V(B
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$B%/%i%$%"%s%H(BID $B%H%i%s%6%/%7%g%sHV9f(B $B;~4V(B $B%U%!%$%kHV9f(B Unix$B%?%$%`(B($BIC(B) $B%*%U%;%C%H(B
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$B$H$J$C$F$$$^$9!%;~4V$O%^%$%/%mICC10L$G$9!%(B
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$B%U%!%$%kHV9f$O%F%9%H$K;H$o$l$?%U%!%$%k$NHV9f$G$9(B(-f$B%*%W%7%g%s(B
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$B$rJ#?t;XDj$7$?$H$-$KM-MQ$G$9(B)$B!%(B
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$B!V(BUnix$B%?%$%`(B($BIC(B) $B%*%U%;%C%H!W$O!$%H%i%s%6%/%7%g%s$,40N;$7$?$H(B
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$B$-$N(BUNIX$B%(%]%C%/%?%$%`$H%^%$%/%mICC10L$N%*%U%;%C%H$G$9(B(ISO
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8601$B%?%$%`%9%?%s%W$HIC$NCf$NC<?t(B)$B!%(B
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$B%m%0$N=PNONc$r<($7$^$9!%(B
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0 199 2241 0 1175850568 995598
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0 200 2465 0 1175850568 998079
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0 201 2513 0 1175850569 608
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0 202 2038 0 1175850569 2663
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-d $B%G%P%C%0%*%W%7%g%s!%MM!9$J>pJs$,I=<($5$l$^$9!%(B
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$B"#%G!<%?%Y!<%9$N=i4|2=(B
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@ -198,6 +219,8 @@ pgbench $B$G$O!$0J2<$N%7!<%1%s%9$rA4It40N;$7$F(B1$B%H%i%s%6%/%7%g%s$H?t$($F(
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(7) end;
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-N$B%*%W%7%g%s$r;HMQ$9$k$H!$(B(4)(5)$B$O<B9T$5$l$^$;$s!%(B
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$B"#F~NO%U%!%$%k$N%U%)!<%^%C%H(B
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-f $B%*%W%7%g%s$r;XDj$7$F%H%i%s%6%/%7%g%s$K4^$^$l$k(B SQL $B%3%^%s%I$NFbMF$r(B
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@ -1,5 +1,5 @@
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/*
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* $PostgreSQL: pgsql/contrib/pgbench/pgbench.c,v 1.63 2007/04/06 08:49:44 ishii Exp $
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* $PostgreSQL: pgsql/contrib/pgbench/pgbench.c,v 1.64 2007/04/06 09:16:16 ishii Exp $
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*
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* pgbench: a simple benchmark program for PostgreSQL
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* written by Tatsuo Ishii
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@ -469,7 +469,8 @@ top:
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diff = (int) (now.tv_sec - st->txn_begin.tv_sec) * 1000000.0 +
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(int) (now.tv_usec - st->txn_begin.tv_usec);
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fprintf(LOGFILE, "%d %d %.0f\n", st->id, st->cnt, diff);
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fprintf(LOGFILE, "%d %d %.0f %d %ld %ld\n",
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st->id, st->cnt, diff, st->use_file, now.tv_sec,now.tv_usec);
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}
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if (commands[st->state]->type == SQL_COMMAND)
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