[tarantool-patches] Re: [PATCH v2 0/4] In-memory wal replication

[Konstantin Osipov]

* Vladislav Shpilevoy <v.shpilevoy at tarantool.org> [19/09/19 00:44]:
> > The last patch makes a relay able to read from wal memory using
> > a xrow_buffer cursor. When relay went out of wal memory window it turns
> > back to file mode. After last known xlog file is relayed the a relay
> > returns to wal memory.
> 
> Please, ask Alexander to bench your branch to check if there are no
> performance problems.

the whole series should boost the performance quite a bit, after
all we are adding an in-memory cache of wal rows and remove file
I/O in the most common case.

But tx overhead is increased by more eager gc_advance, so it has
to be benched independently. 

-- 
Konstantin Osipov, Moscow, Russia