Quoting: liamdawe

Quoting: STiATyou have to put the file provided into the replay folder, renaming the file to a number.

Then it will show in "downloads" tab at "watch".

Valve specifically gave that commmand I posted above to Phoronix, which seems different to running it inside Dota itself?

It's simply the launch options of dota2

In Steam you can right-click dota2, and select "Set launch options" in the "General" tab.

Note that [-vulkan|-gl] is an OR, so either one or the other into the line (both won't work).

So for Vulkan set the launch options to:
-vulkan +timedemo OctPerf +timedemo_start 46800 +timedemo_end 47000 +cl_showfps 2 +fps_max 0 -novconsole -noassert -nosound

For OpenGL to
-gl +timedemo OctPerf +timedemo_start 46800 +timedemo_end 47000 +cl_showfps 2 +fps_max 0 -novconsole -noassert -nosound

Note that you need the OctPerf demo file in the right folder (I think), which I don't have ;-).

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you have to put the file provided into the replay folder, renaming the file to a number.

Then it will show in "downloads" tab at "watch".

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Just did the test with his demo file on:

Distribution: Manjaro KDE
Driver version: linux44-nvidia 1:364.19-6
Kernel: 4.4.13-1-MANJARO
Graphics card: GTX 760
CPU: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
Resolution: 1920x1080,
Composit modes: disabled & enabled
Window mode: exclusive fullscreen & fullscreen borderless window
Graphics mode: vukan&opengl
Number of runs: 10 each graphics mode & OS

Result:
- No difference between exclusive fullscreen and borderless window fullscreen. They seem to set the X flag there.
- No difference between composite enabled or disabled (would hit it that they set the flag, kwin is checking for it to suspend composite)

Vulkan: 58-117
OpenGL: 38-115

OpenGl stuttered from time to time, Vulkan was completely fluent.

================
Result on Windows10, driver 368.39:
DX: 83-113
Vulkan: 71-122

So I can back his data, looks pretty similar here too, though, I have a lot weaker graphics card and bet my CPU is pretty much less up-to-date than his ;-).

I usually play with vsync, so in my particular case: I couldn't care less in dota2, but there is work to do if our driver should be as good as the Windows for other games reaching the same performance.

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Haha .. love the last slide ;D.

"also all friends and colleagues at Croteam who helped me
with this port and gave me courage with their kind words
("You're never gonna finish this", "Vulkan 'till retirement",
"Vulkan programmer work is never done", "Drop it while
you're young... oh sorry, you're not young anymore"...;)"

Sounds like Croteam :D.

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Quoting: Halifax

Quoting: STiATYou don't see it .. that was never the plan. It was never the plan to establish steam machine as a competing platform.

Not even remotely correct. Valve made a huge push for Steam Machines early on. Valve showed up at GDC a few times with a very large SM presentation/pitch. Valve was even going so far as to give away free Steam Machines to users and developers to "make it the best it could be".

It became a sidelined plan when it didn't get received well at release. Honestly, a little before release.

Just because it is now a failed plan, or there are other plans still afoot (ex cross-plat) doesn't even remotely somehow retroactively negate that Steam Machines were 110% indeed, a very big and loud plan for a time.

EDIT: Note, I'm not saying your point about their push for cross-plat being also a selling point is wrong, just that such a point retroactively now means SM's were never the plan as a competing platform, you bet your a$$ Valve wanted them to be - it just failed to pan out.

Ye, but the whole push was not about steam machines. It was about the cross platform. The investment taken is not the purpose it serves. Pushing steam machines never had any real chance of success, and I'm pretty sure it is not the selling point they had at their partners, considering that they prepare for a 3-year cycle which is pretty common in game industry.

They have the right to prove me wrong, but I'm pretty (very) sure that steam machines were never the target, but cross-platform playing, which we probably could benefit from.

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And another thing: Locking out Steam and cross-play of a marketplace is almost impossible, at least if you want gamers.

If they do, it's the push valve needs for SteamOS. When others say "we don't allow steam", people will ask "what about the 200 games I have there? Why can't I use it"... They can wait for that attitude to time out, which will take ~3 years (not taking 5 years for a reason, statistically speaking several universities say prognoses for more than 3 years will always be false)... that's enough time for a new strategy by Valve, or to make a push into the market. And still then, SteamOS is ... nothing more than a playfield. They can push with their own android supporting steam, they can make deals with producers to pre-install - they have a lot of options.

If this happens, there is when SteamOS comes in, within a big investment of Valve which will cost them approx 1.5 billion in investments to technology and marketing, to push of a new platform.

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You don't see it .. that was never the plan. It was never the plan to establish steam machine as a competing platform. The plan is to establish Steam as the only cross platform platform, the only one supporting MacOS, Windows, Linux, Android, with cross-playing. SteamOS was just a push to get publishers and developers putting up their skills and trying cross-platform, getting engines up to cross platform, and then pushing Vulkan - of course.

That (cross-play) is the sole and only plan. It is the only thing Valve can offer as benefit over native marketplaces, since Google, Microsoft and Apple will never allow their direct competitors on their marketplace. And SteamOS is nothing more than a game-pit for that, "you can play it in Windows or Linux/SteamOS". That's not an offer, that's the test field for a broader strategy. With Vulkan at it's base, Vulkan is may more critical to Valve than SteamOS, since it enables cross platform playing, which is the only benefit Steam has over other competitors. And with Google stepping on there, it's most likely to be the cross-platform of Steam or if Google can lock-in enough customers.

They're planning this well, but I'm not yet sure they see their greatest problem. But I'll not state that one yet, since they have some time to cover this (1-3 years).

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I don't care, and nobody will. They stay committed. The issue they have are stores bundled with operating systems (iTunes, Google Play, Windows Marketplace).

They don't really care for gaming, I wonder what's in their shelve to counter those platforms. Can only be one thing: Buy at Steam, play it on every platform (iOS, Linux, Windows, OSX, Android...). The big issue is, you may buy a game on Android or iOS, or OSX; and are not able to play it in Windows or SteamOS. And I doubt Google, MS and Apple will ever get around doing a deal about this. And that's the strength of an "independent" platform, namely, Valves Steam. And I lay my hand in the fire that that's their business target and Linux just a playfield for this.

That can be the only thing Valve is pushing for, and getting games and publishers on early support on that platform is the only way to do that. How ever they will manage the technical difficulties between the platforms, that's probably what they try to tackle right now.

We need to understand that SteamOS is not about making us happy or Linux a strong platform. There is a business goal behind it, and the question we should ask is: What is valve cooking up? Not necessarily negative for us, but they're not doing this out of charity, that's for sure.

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On my wishlist ... if I had the time the next 6 month, I'd probably buy it...

It's really interesting. I always complained not being able to play games in Linux. Now I complain not having enough time to play all the games I want....

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Painless Linux-Support has two sides:
It's probably painless to support stuff if you're using the right libraries to get all the window management, input and stuff done.
What can be a pain, especially for graphically more... challanging products is still the graphics stack. Ye, a lot of is done there, but we're not quite where I'd consider it a good state.

Still, ye, Linux numbers is minimal, and I can understand business decisions on not supporting Linux. Though, it's always nice if we get a game :-).

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