February 5, 2009

Disaster: LVM Performance in Snapshot Mode

Posted by peter |

In many cases I speculate how things should work based on what they do and in number of cases this lead me forming too good impression about technology and when running in completely unanticipated bug or performance bottleneck. This is exactly the case with LVM

Number of customers have reported the LVM gives very high penalty when snapshots are enabled (leave along if you try to run backup at this time) and so I decided to look into it.

I used sysbench fileio test as our concern is general IO performance in this case – it is not something MySQL related.
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Posted by peter @ 8:55 pm :: benchmarks :: 43 comments
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Announcing Percona Performance Conference 2009 on April 22 & 23

Posted by Baron Schwartz |

Percona Performance ConferenceAll of us here at Percona warmly invite you to Percona Performance Conference 2009 on April 22 and 23, 2009 in the Hyatt Regency in Santa Clara, California. The theme for the conference is Performance Is Everything. This conference is about application performance overall, not just databases. Attendance is free of charge for everyone. Experts in many types of technologies — databases, search, cloud computing, massively parallel computing, client-side optimization — will present their real-life experience.

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Posted by Baron Schwartz @ 3:47 pm :: community, conferences, news, percona :: 5 comments
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