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Re: [CYGWIN] resource leak in 7.2

From: "Hiroshi Inoue" <Inoue(at)tpf(dot)co(dot)jp>
To: "Tom Pfau" <T(dot)Pfau(at)emCrit(dot)com>, "Jason Tishler" <jason(at)tishler(dot)net>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-bugs(at)postgresql(dot)org>, <pgsql-cygwin(at)postgresql(dot)org>
Subject: Re: [CYGWIN] resource leak in 7.2
Date: 2002-02-08 18:14:41
Message-ID: EKEJJICOHDIEMGPNIFIJMELKGLAA.Inoue@tpf.co.jp (view raw or flat)
Thread:
Lists: pgsql-bugspgsql-cygwin
> -----Original Message-----
> From: Tom Pfau
> 
> I'm attaching two sql scripts in a zip file.  Run script1.sql from one
> session.  After it's done with the inserts, start script2.sql in another
> session.  Have task manager running in the background and watch the
> backends eat handles.

I tested the srcipt with both cygipc-1.09 and my patched cygipc-1.09
(Where have my postings on Feb 6 gone ?).

With about 20 concurrent clients running
1) cygipc-1.09
    Handles 9000 ---> 23000 or so.
2) my patched
    Handles 9000 ---> 15600 or so.

So at least one of the cause seems the semaphore handle leak
in the cygipc library.

regards,
Hiroshi Inoue

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