RE: What is this Session Doing

Hi,

        (It seems that my outlook is incompatible with oracle-l, so if it mess = code, please forward it to the list).

        Try truss -p $pid , and find out what the process is doing in the unix = level and using event 10046 to trace it in oracle.

        I have seen similar things on my solaris box. Maybe it is doing poll() = system call, or yield() system call.(I hit such problem). Workaround is = to use another execution path for this specific SQL.

        V$sesstat won't update the statistics until the current SQL has = finished.
=20
Regards
Zhu Chao
eBay e-commerce Technology Operations (Shanghai) Co.,Ltd. Tel: 86-21-32174588x8667
Fax: 86-21-63404100=20
12/F., Raffles City Shanghai, No. 268 Xi Zang Road, Central=20 Shanghai, China, 200001=20
=20

-----Original Message-----
From: oracle-l-bounce_at_freelists.org =
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Ganesh Raja Sent: 2004=C4=EA9=D4=C224=C8=D5 18:29
To: Oracle-L
Subject: Re: What is this Session Doing

Sorry here are the versions.

Solaris 64 Bit 9.2.0.5

Thanks.

On Fri, 24 Sep 2004 11:28:12 +0100, Ganesh Raja <ganesh.raja_at_gmail.com> = wrote:
> Hi,
>=20
> I have a query that has spawned parallel slaves. All the slaves are
> now waiting for a single slave to respond back. This slave process is
> churning away and eating up lot of CPU. [According to prstat]
>=20
> When I see in v$sess_io i don't see any activity of this Process and
> since it is on the CPU it is not waiting .. So what is happening here.
>=20
> The weird thing is that that the CPU statistics for this process are
> not being updated on v$sessstat
>=20
> Any help is greatly appreciated.
>=20
> Cheers
> Ganesh R
>

--
http://www.freelists.org/webpage/oracle-l

--
http://www.freelists.org/webpage/oracle-l