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Tag Archives: mysql
On replication, some more
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
Profile guided optimization with gcc
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
Notes from land of I/O
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
On blocking
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
