As a final followup to my MySQL 5.4 Scalability on 64-way CMT Servers
blog, I'm posting MySQL 5.4 Sysbench results on a Sun Fire X4270 platform using the Intel x86 Nehalem chip (2 sockets/8 cores/16 threads). All CPUs were turned on during the runs. The my.cnf was the same as described in the previous blog.
The Sysbench version used was 0.4.12, and the read-only runs were invoked with the following command:
sysbench --max-time=300 --max-requests=0 --test=oltp --oltp-dist-type=special --oltp-table-size=10000000 \\
--oltp-read-only=on --num-threads=[NO_THREADS] run
The "oltp-read-only=on" parameter was omitted for the read-write tests. The my.cnf file listed in my previous blog was also used unchanged for these tests.
Here are the results graphically running on Linux.