Which MySQL version best to use and with/without linux threads?

Michael VInce mv at roq.com
Sun Oct 2 20:44:16 PDT 2005

I did benchmarks with Linux threads and without on 5.x and found Linux 
threads didn't help at all. It probably does on 4.x  though.
And i did consistently benchmark 4.0.x faster then 4.1 but it wasn't a 
large amount of difference.
If your db server isn't maxed out in anyway and there are features in 
4.1 you want then I would see little harm in upgrading.


Olaf Greve wrote:

> Hi,
> I've got a MySQL 4.0.16 DB running with several DB instances in it. So 
> far, so good, but I'm looking for a bit of advice.
> I've got a few small questions:
> Firstly: is it (for a webserver) better to compile MySQL with 
> linux-threads or without? I seem to recall having read that Linux uses 
> a better threading mechanism, and that MySQL really benefits from 
> this... What do you all think?
> Then, I'm currently configuring a second beast, eehhhh, server. :)
> Being an AMD-64 19" server, running FreeBSD 5.4-Release AMD64. On it, 
> I instinctively installed the latest MySQL 4.0.x version (being 
> 4.0.26) and it works flawlessly with the data from my current 
> production machine.
> Still so far, so good. :)
> However... I was wondering what the advantages (and potential 
> disadvantages!) may be of using a newer line of the MySQL DB.
> Can anyone tell me what the advantages/pitfalls may be of using v4.1.x 
> or even v5, over using 4.0.x ?
> A year or two ago I installed a 4.1.x version and there were some 
> issues then with using the passwords, coming from a 3.23.x or 4.0.x 
> one. I don't remember the details, but it had something to do with 
> that...
> Any advice is more than welcome, as this is the moment for me to make 
> this sort of decicion, and I'd like to do so based on real user's 
> experiences...:)
> Thank you kindly in advance, and with kind regards,
> Olaf Greve
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