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Portability and documentation fixes for threaded pgbench patch.

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This commit is contained in:
Tom Lane
2009-08-03 18:30:55 +00:00
parent 3da0dfb4b1
commit 7ffb14f9db
3 changed files with 42 additions and 24 deletions
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15
doc/src/sgml/pgbench.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbench.sgml,v 1.9 2009/08/03 15:18:14 ishii Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/pgbench.sgml,v 1.10 2009/08/03 18:30:55 tgl Exp $ -->
<sect1 id="pgbench">
<title>pgbench</title>
@ -27,13 +27,14 @@ transaction type: TPC-B (sort of)
scaling factor: 10
query mode: simple
number of clients: 10
number of threads: 1
number of transactions per client: 1000
number of transactions actually processed: 10000/10000
tps = 85.184871 (including connections establishing)
tps = 85.296346 (excluding connections establishing)
</programlisting>
The first five lines report some of the most important parameter
The first six lines report some of the most important parameter
settings. The next line reports the number of transactions completed
and intended (the latter being just the product of number of clients
and number of transactions per client); these will be equal unless the run
@ -174,9 +175,11 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</>
<row>
<entry><literal>-j</literal> <replaceable>threads</></entry>
<entry>
Number of worker threads. Clients are equally-divided into those
threads and executed in it. The number of clients must be a multiple
number of threads. Default is 1.
Number of worker threads within <application>pgbench</application>.
Using more than one thread can be helpful on multi-CPU machines.
The number of clients must be a multiple of the number of threads,
since each thread is given the same number of client sessions to manage.
Default is 1.
</entry>
</row>
<row>
@ -267,7 +270,7 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</>
<entry><literal>-C</literal></entry>
<entry>
Establish a new connection for each transaction, rather than
doing it just once per client thread.
doing it just once per client session.
This is useful to measure the connection overhead.
</entry>
</row>