July 2004
Intermediate to advanced
384 pages
9h 32m
English
book
Oracle Wait Interface: A Practical Guide to Performance Diagnostics & Tuning
by Richmond Shee, Kirtikumar Deshpande, K Gopalakrishnan
Content preview from Oracle Wait Interface: A Practical Guide to Performance Diagnostics & TuningBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Buffer Dump
The buffer dump is same as the buffers dump discussed in the preceding session, except as regards the LRU information. The buffer dumps all the buffers in the buffer cache of the given Data Block Address (DBA) at level 10. This can be used to dump the buffers of the known DBA. Starting from Oracle8 you need to set the SET_TSN_P1 event because the address is taken as relative DBA, which is specific to a tablespace. This dump is usually taken to investigate the buffer copies of the single known buffer. Note the number of CR copies of the specific buffer in the buffer cache is limited by the undocumented parameter_DB_BLOCK_MAX_CR_DBA. You may need to use the buffer dump when the error is related to a single buffer (or a set of buffers). ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.