On 04/27/2015 11:32 PM, Linus Torvalds wrote: > On Fri, Apr 24, 2015 at 6:50 AM, Lukasz Skalski <l.skal...@samsung.com> wrote: >> >> To perform tests I've created two simple apps: >> >> - server: http://fpaste.org/215157/ >> - client: http://fpaste.org/215156/ > > So since Andy reported that dbus seems to be a few orders of magnitude > too slow, I tried to build these apps to see what it even does. > > They don't buidl on F21. You seem to be using features that are too > new to exist even in fairly modern distros: > > server.c:47:24: error: ‘G_BUS_TYPE_USER’ undeclared > > so I can't even see what dbus does *now*. >
I've just explained it in my mail to Andy. As it was discussed some time ago with GLib developers, we introduced two new bus types called "user" (G_BUS_TYPE_USER) and "machine" (G_BUS_TYPE_MACHINE). At this moment, these are only available on GLib devel branch, so I should replace G_BUS_TYPE_USER with G_BUS_TYPE_SESSION before I posted my benchmark apps - sorry for that. > That said, either you're running your test on a potato, or dbus is > seriously screwed up. No way should it take 4+ seconds to send a 1000b > message to back and forth 20k times. But as mentioned, I can't even > see what it's doing right now. > > Linus > -- Lukasz Skalski Samsung R&D Institute Poland Samsung Electronics l.skal...@samsung.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
