RE: I/O and db_file_multiblock_read_count
- From: "Kevin Closson" <kevinc@xxxxxxxxxxxxx>
- To: "oracle-l" <oracle-l@xxxxxxxxxxxxx>
- Date: Sun, 10 Dec 2006 17:49:45 -0800
You folks are freaking me out. The OP could easily be handled by testing
with a scan "agent" that doesn't vary its I/O profile. I said so
straight out of the
gate and Mark said so with very rich supporting text. Let's just see
what the array head
can deliver to dd(1) since it scans with precisely the same sort of I/O
as a scattered
read except (most critical) it is buffered in the data segment of dd(1)
instead of
sprayed across buffers in the SGA.
ok, crawling back into the cave to work on the blog
kevinclosson.wordpress.com
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Vlad Sadilovskiy
Sent: Sunday, December 10, 2006 12:03 PM
To: Mladen Gogala
Cc: knecht.stefan@xxxxxxxxx; Hemant K Chitale; oracle-l
Subject: Re: I/O and db_file_multiblock_read_count
And what did I say that was different from your first sentence?
Second sentence I think is wrong. I'll deliberately use explicit tag for
parameter and system statistics MBRC value to reduce possible
misinterpretation.
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