jeffr_tech (jeffr_tech) wrote,
jeffr_tech
jeffr_tech

Exciting new data from the sysbench comparison.


So we got some exciting new data. I realized that we've been running with mysql 5.0.27 on my machine. I updated and re-ran the tests. I also ran with a 2.6.20.1 kernel on linux. The 'contention' refers to a bundle of contention reducing patches that are being tested for stability and inclusion in -CURRENT soon.

I would like to caution everyone against getting too excited before we finish verifying all of the results. I'm talking to some linux kernel guys now who are trying to reproduce this effect. Until then, I'm glad to see that with the same version of mysql we get the same throughput at peak. I have some scheduler changes in the queue that should address the slower ramp-up on freebsd as well.

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  • 94 comments

  • Asynchronous partial truncation

    I have spent a month of my life on partial truncation. Softupdates asynchronously handles the case where you were completely truncating a file, such…

  • Performance problems in SUJ

    SUJ has been around for a year now and 9.0 will release with it this summer. In preparation I am working on the few known performance problems. The…

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    I sometimes speak with Con Kolvis who is known for several Linux schedulers. Con is an interesting fellow because his background is not CS and he is…