From: | Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> |
---|---|
To: | y-asaba(at)sraoss(dot)co(dot)jp |
Cc: | pgsql-patches(at)postgresql(dot)org |
Subject: | Re: Wrong result with pgbench -C option? |
Date: | 2008-03-19 00:29:56 |
Message-ID: | 20080319.092956.119869332.t-ishii@sraoss.co.jp |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-patches |
Patch applied. Thanks.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
> Hi,
>
> I ran pgbench with -C option. Here is an output.
>
> % pgbench -C -c 10 -t 100 bench
> starting vacuum...end.
> transaction type: TPC-B (sort of)
> scaling factor: 1
> number of clients: 10
> number of transactions per client: 100
> number of transactions actually processed: 1000/1000
> tps = 83.209663 (including connections establishing)
> tps = 83.209663 (excluding connections establishing)
>
> The first tps was equal to the second tps. I think it is wrong because
> pgbench with -C option connects per transaction.
>
> The attached patch calculates total connection time. Here is an output
> with revised pgbench.
>
> % ./pgbench -C -c 10 -t 100 bench
> starting vacuum...end.
> transaction type: TPC-B (sort of)
> scaling factor: 1
> number of clients: 10
> number of transactions per client: 100
> number of transactions actually processed: 1000/1000
> tps = 108.410991 (including connections establishing)
> tps = 228.657561 (excluding connections establishing)
>
> Regards,
> --
> Yoshiyuki Asaba
> y-asaba(at)sraoss(dot)co(dot)jp
From | Date | Subject | |
---|---|---|---|
Next Message | Tatsuo Ishii | 2008-03-19 00:31:04 | Re: Patch for testing query modes on pgbench |
Previous Message | Tom Lane | 2008-03-18 22:05:29 | Re: Patch to inline stable SQL set returning UDFs |