> Am 08.12.2017 um 21:14 schrieb Stephane Ducasse <stepharo.s...@gmail.com>: > > Yann > I do not think that connecting a database via a HTTP client can be as > fast as with a FFI or other means. > This is mainly why database like Gemstone are superior for accessing a > lot of data. > Stef > Do you have any numbers to back this? We are not talking about a local database. The usual deployment case is that the database is remote and clustered so you need to connect one or more hosts at the same time. Via FFI you would trigger native code that does network calls to the database. The main network handling part is in the SocketPlugin. So I‘m not sure how much faster it will be to use FFI. IIRC using FFI is still a stop-the-world action, right? This has some drawbacks, too. In order to get the maximum out of it you would need to use callbacks (do they work with uffi?) and write a lot stuff in C. And debugging is hell. I think that one of the things that make gemstone fast is that the in-memory format is the same as the disk-format so no need to serialize/materialize. That is one of the high costs in using a database. And this you would still do in pharo, right? So I would be really interested in some numbers of a use case like this.
Norbert >> On Fri, Dec 8, 2017 at 4:32 PM, Yann Lesage <yannle...@gmail.com> wrote: >> Hello, >> >> >> I write an driver for Arangodb . So like it's indicated in Arango >> documentation, I use the HTTP API. The repo is >> https://github.com/Valtena/Pharango >> >> >> Now, the problem : Arango using Znclient make around 1 000 requests/second. >> >> >> And the question : Are there any recommended pratice to have the better >> performance with ZNClient or a better way to perform lot of HTTP requests ? >> >> >> Thanks for your attention, >> >> Yann Lesage >> >> >>
