Phoronix IRC Log: 2010-09-13
monreal: does anyone know of any recent xrender benchmarks?
monreal: I am asking because Firefox 4.0 will rely on XRender for accelerated content composition on linux while it has Direct2D for win7
Guest90182: will firefox have hardware accleration for linux? :o
monreal: as I said, it will rely on xrender (through) cairo for content composition and use opengl for layer composition
Ivanovic: monreal: if it relies on cairo then it relies on cairo
Ivanovic: meaning that the user can change the backend cairo uses to eg opengl
monreal: since when is that possible?
Ivanovic: should be possible since the 1.10 release of cairo
monreal: iirc it's not just a matter of switching to opengl... at least that was not the case in the past
monreal: do you have any more information/docs?
Ivanovic: no, i don't have more information
Ivanovic: but in theory changing the render backend used by cairo should change the backend used by progs that use cairo
monreal: I will try to find out if this works in more than theory :)
monreal: anyway, atm I am running the test http://demos.hacks.mozilla.org/openweb/HWACCEL/
monreal: on my desktop (geforce 7950) I get 9fps while on my laptop (intel 3100) I get 44pfs
monreal: really wondering if xrender is soooo bad
monreal: in the nvidia binary driver
Ivanovic: it is close to nonexistant in the proprietary drvers
Ivanovic: since those do implement their own acceleratioon methods
monreal: a friend reported 77fps on a newer (but not gaming-grade) laptop with nvidia graphics
Ivanovic: in general those demos are likely to be statically compiled binaries, so it does not matter if you have opengl selected as backend
Ivanovic: with other words: if you compile the stuff yourself and have opengl backend selected for cairo things should be fine
monreal: the demo I was talking about is a web page :)
Ivanovic: yeah, but you view it with your firefox, right?
Ivanovic: and are you using the binary version from mozilla?
monreal: we tested with mozilla nightly builds as well as 3.6.4 or something from fedora
monreal: the results are largely the same
Ivanovic: those mozilla nightly builds are likely to be static, so you can't switch the render backend
Ivanovic: no idea wha fedora does ship
monreal: well, mozilla say cairo-gl is still not ready for usage... and that brings me back to my original question
monreal: it would be nice to have an idea which hw does good xrender accel and which does not
Ivanovic: it does not only depend on your hardware
Ivanovic: but more so on the drivers and software stack you use
monreal: in fact I wouldn't be surprised to see better performance when using nouveau, which I should really give a try again soon
eMBee: good evening
eMBee: thinks there is something not quite right in this page: http://www.phoronix.com/scan.php?page=article&item=lgs_2010_xds&num=2
eMBee: the bottom paragraph on page 2 of the 2010 LGS results says: "Nouveau handling about 5% of NVIDIA Linux users" but it is actually 5% of all linux users and thus more than 13% of the nvidia users...
Ivanovic: eMBee: not correct
Ivanovic: nvidia users could also rely on xf86-video-vesa
eMBee: Ivanovic: that changes the percentage to 12.8, still much more than 5
Ivanovic: yeah, in general those interpretations are, uhm, yeah, problematic
Ivanovic: a really bad one is "Which of the display feature(s) do you use?"
Ivanovic: it suggests that >1 answer are possible (which makes sense!) but the diagrams looks as if every user was only able to select exactly one
eMBee: Ivanovic: right, i noticed that too
bkero: God damn it.
bkero: The Boxee box that was announced today uses Intel's CE4100. Which is Sodaville. Which is a derivative of Poulsbo. Which still doesn't have any usable drivers.
bkero: michaellarabel: plz complain
bkero: michaellarabel is gone :(
SupplyBox: Hey all
SupplyBox: What's shaking?