Re: Pluggable database in 12C
From: John Hurley <johnthehurley_at_gmail.com>
Date: Mon, 22 Oct 2012 17:51:17 -0700 (PDT)
Message-ID: <33984176-8f18-46b2-a4fb-85feba04721c_at_b6g2000yqd.googlegroups.com>
Nuno:
Date: Mon, 22 Oct 2012 17:51:17 -0700 (PDT)
Message-ID: <33984176-8f18-46b2-a4fb-85feba04721c_at_b6g2000yqd.googlegroups.com>
Nuno:
# The SAN is the same. So is the hardware - CPU (Power6) and memory.
... Log file sync wait time dropped from around 2-3ms to under 1ms for 90% of the time. CPU use dropped nearly 25% for same workload. I/O is similar, no major alterations.
Interesting but keep in mind that we are at the mercy of Oracle instrumentation here at least for how they measure the log file sync wait time. Lots of possible ways internally that Oracle might have changed how they measure it between 10.2.0.3 ( well off some of the final 10.2 code ) and 11.2.0.3.x Received on Tue Oct 23 2012 - 02:51:17 CEST