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Displaying posts with tag: iops (reset)

IOPS, innodb_io_capacity, and the InnoDB Plugin
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In the InnoDB plugin, a new variable was added named innodb_io_capacity, which controls the maximum number of I/O operations per second that InnoDB will perform (which includes the flushing rate of dirty pages as well as the insert buffer (ibuf) batch size).

First off, let me just say this is a welcome addition (an addition provided by the Google Team, fwiw).

However, before this was configurable, the internal …



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Determining I/O Throughput for a System
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At Kscope this year, I attended a half day in-depth session entitled Data Warehousing Performance Best Practices, given by Maria Colgan of Oracle. In that session, there was a section on how to determine I/O throughput for a system, because in data warehousing I/O per second (iops) is less important than I/O throughput (how much actual data goes through, not just how many reads/writes).

The section contained an …

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