Tag Archives: mysql

MySQL 5.6 @ Facebook development tree Steaphan is a hero (well, everyone else on database engineering team are too) and he is driving efforts to publish MySQL 5.6 changes we’re making to the open. Now they’re on the github (yet … Continue reading →

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On replication, some more

Posted on 2009/12/13 by

Dear MySQL, I feel ashamed that I ever wanted you to support 4.0->5.1 replication, and apologize for that. I really understand that it was really egoistic of me even to consider you should be involved in this. I even understand … Continue reading →

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Profile guided optimization with gcc

Posted on 2009/07/27 by

Yesterday I wrote how certain build optimizations can have performance differences – and I decided to step a bit deeper into a quite interesting field – profile guided binary optimization. There’re quite a few interesting projects out there, like LLVM … Continue reading →

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Notes from land of I/O

Posted on 2008/08/11 by

A discussion on IRC sparkled some interest on how various I/O things work in Linux. I wrote small microbenchmarking program (where all configuration is in source file, and I/O modes can be changed by editing various places in code ;-), … Continue reading →

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On blocking

Posted on 2008/06/20 by

If a process has two blocking operations, each blocking other (like, I/O and networking), theoretical performance decrease will be 50%. Solution is very easy – convert one operation (quite often the one that blocks less, but I guess it doesn’t … Continue reading →

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