From: Sergio Mayoral <mayoralstuttgart@yahoo.com>
To: postgresql-perf <pgsql-performance@postgresql.org>
Subject: PQconnectStart/PQconnectPoll
Date: Thu, 15 Nov 2012 01:02:57 -0800 (PST)
Message-ID: <1352970177.10135.YahooMailNeo@web39302.mail.mud.yahoo.com> (raw)
Hi,
i am running some tests to check performance between postgresql and mysql.
one important issue is PQconnectdb (PQconnectStart/PQconnectPoll) against mysql_init/mysql_real_connect functions. (debian platform/C application).
PQconnectdb("host=localhost dbname=my_db user=my_user password='' sslmode=disable");
co = mysql_init(NULL)
mysql_real_connect(co, "127.0.0.1", "my_user", "", "my_db", 0, NULL, 0)
PQconnectdb is taking too long comparing to mysql and i found out the time is consumed by PQconnectPoll waiting for the socket to be ready for reading/writing
but this behaviour is not seen in mysql.
I cannot use persistent connections. I must open/close a connection anytime I want to insert something new.
do i have to configure something different? Am i missing something?
this problem gets even worse under PHP.
Regards,
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To: pgsql-performance@postgresql.org
Cc: mayoralstuttgart@yahoo.com
Subject: Re: PQconnectStart/PQconnectPoll
In-Reply-To: <1352970177.10135.YahooMailNeo@web39302.mail.mud.yahoo.com>
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