[kdepim-users] changing database backend
René J.V. Bertin
rjvbertin at gmail.com
Wed Nov 12 15:40:26 GMT 2014
On Wednesday November 12 2014 09:54:20 Pablo Sanchez wrote:
>it. I'd rather buy an SSD (cheap!) and not worry about I/O.
Not here in Europe, not at least for use in a machine where performance tweaks count most (namely my "kick around" netbook that cost me about 300€ 2y ago, with a 300Gb harddisk that isn't likely to be the bottleneck; an SSD upgrade for that kind of machine is just not reasonable).
> This variable can be turned off with --skip-innodb_doublewrite for
> benchmarks or cases when top performance is needed rather than
> concern for data integrity or possible failures.
Yes, I've seen that. It's something akin to COW, and with ZFS's own COW plus the copies=2 I'm running with that would just be too much redundancy.
>In order for the DBMS to conform to ACID , you can't disable
But logging is independent of double-write, right?
Thanks for the links.
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