Hi, I love those posts. They make OrientDB a more conscious choice instead of a religious one :)
I had some obstacles through the reading of this page, you may consider to fix them: 1. completely missing references (for 2Q cache and WOW cache) 2. bad text formatting 3. missing of explaining figures 4. I didn't understood well the Write Cache paragraph Anyway good effort, go on in this direction. Cheers, Riccardo 2013/12/22 Sylvain Spinelli <[email protected]> > Hi Andrey, > > Thanks for these explanations, really useful for me when I will migrate to > plocal... > > Not sure to well understand these points (in bold) : > > The size of a1in queue is *25%* of read cache size, size of a1out > is *50%* of cache size and size of am is* 75%* of cache size. > > At the initial state the cache is empty, so all accessed pages are > put in a1in queue, and size of this queue is 100% of size of read cache. > But then, when there are no room for new pages in a1in, old pages > removed from a1in and put in a1out. > Eventually when a1out contains requested pages we need room for am queue > pages, so we once again remove a1in pages and put them in a1out queue, *a1m* > queue is truncated till it is reached 25% size of read cache. > > > Percentages and queue name "a1m" seems strange... > > I'm looking forward to read your next article ;) > > > Sylvain > > > > Le 20/12/2013 19:19, Andrey Lomakin a écrit : > > Hi, > We have added description of design of storage disk cache. May it will be > interesting for you to look into OrientDB internals > https://github.com/orientechnologies/orientdb/wiki/plocal-storage-disk-cache > > Next time we will provide description of WAL design and plocal cluster. > > -- > Best regards, > Andrey Lomakin. > > Orient Technologies > the Company behind OrientDB > > -- > > --- > You received this message because you are subscribed to the Google Groups > "OrientDB" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > > --- > You received this message because you are subscribed to the Google Groups > "OrientDB" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
