DRI2 vs. DRI3 Radeon Linux OpenGL Performance

[arabek]

Option "DRI" "3"

like on intel

Wrong:

Option "DRI3" "1"

[boffo]

I tried this DRI 3 option. With team fortress 2 the system is stable, but firefox freezes with videos. On AMD trinity

[Pontostroy]

Wrong:

Option "DRI3" "1"

tell me more

 man radeon|grep DRI
       Option "DRI" "integer"
              Define the maximum level of DRI to enable. Valid values are 2 for DRI2 or 3 for DRI3.  The default is 2 for DRI2.
              Enable DRI2 page flipping.  The default is on.  Pageflipping is supported on all radeon hardware.

[kuco]

For me

Option "DRI3"

is working.
(Manjaro)

[Guest]

tell me more

man radeon|grep DRI
Option "DRI" "integer"
Define the maximum level of DRI to enable. Valid values are 2 for DRI2 or 3 for DRI3. The default is 2 for DRI2.
Enable DRI2 page flipping. The default is on. Pageflipping is supported on all radeon hardware.

Weird; my man entry says it's a boolean for radeon (Fedora 23):

Option "DRI3" "boolean"
Enable the DRI3 extension. The default is off.

[PuckPoltergeist]

tell me more

man radeon|grep DRI
Option "DRI" "integer"
Define the maximum level of DRI to enable. Valid values are 2 for DRI2 or 3 for DRI3. The default is 2 for DRI2.
Enable DRI2 page flipping. The default is on. Pageflipping is supported on all radeon hardware.

src/radeon.h

[FONT=monospace][COLOR=#54ff54][B]typedef[/B][/COLOR][COLOR=#000000] [/COLOR][COLOR=#54ff54][B]enum[/B][/COLOR][COLOR=#000000] { [/COLOR]
   OPTION_ACCEL,
   OPTION_SW_CURSOR,
   OPTION_PAGE_FLIP,
   OPTION_EXA_PIXMAPS,
   OPTION_COLOR_TILING,
   OPTION_COLOR_TILING_2D,
[COLOR=#5454ff][B]#ifdef RENDER[/B][/COLOR][COLOR=#000000] [/COLOR]
   OPTION_RENDER_ACCEL,
   OPTION_SUBPIXEL_ORDER,
[COLOR=#5454ff][B]#endif[/B][/COLOR][COLOR=#000000] [/COLOR]
   OPTION_ACCELMETHOD,
   OPTION_EXA_VSYNC,
   OPTION_ZAPHOD_HEADS,
   OPTION_SWAPBUFFERS_WAIT,
   OPTION_DELETE_DP12,
   [COLOR=#000000]OPTION_DRI[/COLOR][COLOR=#000000]3, [/COLOR]
   [COLOR=#000000]OPTION_DRI[/COLOR][COLOR=#000000], [/COLOR]
   OPTION_SHADOW_PRIMARY,
   OPTION_TEAR_FREE,
} RADEONOpts;[/FONT]

and

src/radeon_kms.c

[FONT=monospace][COLOR=#54ff54][B]const[/B][/COLOR][COLOR=#000000] OptionInfoRec RADEONOptions_KMS[] = { [/COLOR]
   { OPTION_ACCEL,          [COLOR=#ff54ff][B]"Accel"[/B][/COLOR][COLOR=#000000],            OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_SW_CURSOR,      [COLOR=#ff54ff][B]"SWcursor"[/B][/COLOR][COLOR=#000000],         OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_PAGE_FLIP,      [COLOR=#ff54ff][B]"EnablePageFlip"[/B][/COLOR][COLOR=#000000],   OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_COLOR_TILING,   [COLOR=#ff54ff][B]"ColorTiling"[/B][/COLOR][COLOR=#000000],      OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_COLOR_TILING_2D,[COLOR=#ff54ff][B]"ColorTiling2D"[/B][/COLOR][COLOR=#000000],    OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_RENDER_ACCEL,   [COLOR=#ff54ff][B]"RenderAccel"[/B][/COLOR][COLOR=#000000],      OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_SUBPIXEL_ORDER, [COLOR=#ff54ff][B]"SubPixelOrder"[/B][/COLOR][COLOR=#000000],    OPTV_ANYSTR,  {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
[COLOR=#5454ff][B]#ifdef USE_GLAMOR[/B][/COLOR][COLOR=#000000] [/COLOR]
   { OPTION_ACCELMETHOD,    [COLOR=#ff54ff][B]"AccelMethod"[/B][/COLOR][COLOR=#000000],      OPTV_STRING,  {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_SHADOW_PRIMARY, [COLOR=#ff54ff][B]"ShadowPrimary"[/B][/COLOR][COLOR=#000000],    OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
[COLOR=#5454ff][B]#endif[/B][/COLOR][COLOR=#000000] [/COLOR]
   { OPTION_EXA_VSYNC,      [COLOR=#ff54ff][B]"EXAVSync"[/B][/COLOR][COLOR=#000000],         OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_EXA_PIXMAPS,    [COLOR=#ff54ff][B]"EXAPixmaps"[/B][/COLOR][COLOR=#000000],       OPTV_BOOLEAN,   {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_ZAPHOD_HEADS,   [COLOR=#ff54ff][B]"ZaphodHeads"[/B][/COLOR][COLOR=#000000],      OPTV_STRING,  {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_SWAPBUFFERS_WAIT,[COLOR=#ff54ff][B]"SwapbuffersWait"[/B][/COLOR][COLOR=#000000], OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_DELETE_DP12,    [COLOR=#ff54ff][B]"DeleteUnusedDP12Displays"[/B][/COLOR][COLOR=#000000], OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE}, [/COLOR]
   { [COLOR=#000000]OPTION_DRI[/COLOR][COLOR=#000000]3,           [/COLOR][COLOR=#ff54ff][B]"DRI3"[/B][/COLOR][COLOR=#000000],             OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { [COLOR=#000000]OPTION_DRI[/COLOR][COLOR=#000000],            [/COLOR][COLOR=#ff54ff][B]"DRI"[/B][/COLOR][COLOR=#000000],              OPTV_INTEGER, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { OPTION_TEAR_FREE,      [COLOR=#ff54ff][B]"TearFree"[/B][/COLOR][COLOR=#000000],         OPTV_BOOLEAN, {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE }, [/COLOR]
   { -[COLOR=#ff54ff][B]1[/B][/COLOR][COLOR=#000000],                    [/COLOR][COLOR=#ff54ff][B]NULL[/B][/COLOR][COLOR=#000000],               OPTV_NONE,    {[/COLOR][COLOR=#ff54ff][B]0[/B][/COLOR][COLOR=#000000]}, FALSE } [/COLOR]
};[/FONT]

You will find the usage of OPTION_DRI3 and OPTION_DRI down in radeon_kms.c

[oibaf]

Wrong:

Option "DRI3" "1"

http://cgit.freedesktop.org/xorg/dri...5441f2b5790c29

[Adriannho]

Weird; my man entry says it's a boolean for radeon (Fedora 23):

Option "DRI3" "boolean"
Enable the DRI3 extension. The default is off.

For me on arch man radeon | grep DRI gives:

Enable DRI2 page flipping.  The default is on.  Pageflipping is supported on all radeon hardware.

very strange indeed.

[duby229]

And this article proves exactly why rendering way above screen refresh is stupid. It doesn't matter. I'll bet you that if time was taken to configure the game for best settings to get close to 60hz average they would perform exactly the same. Which means that what has been taken as overall performance has been wrong all along.

The only metrics that make sense measuring are those that you'll be playing at.

[dungeon]

I tried this DRI 3 option. With team fortress 2 the system is stable, but firefox freezes with videos. On AMD trinity

Do you have xcb 1.11.1?

For me on arch man radeon | grep DRI gives:

Enable DRI2 page flipping. The default is on. Pageflipping is supported on all radeon hardware.

very strange indeed.

That is 7.5 ddx and you need git version.

And this article proves exactly why rendering way above screen refresh is stupid. It doesn't matter. I'll bet you that if time was taken to configure the game for best settings to get close to 60hz average they would perform exactly the same. Which means that what has been taken as overall performance has been wrong all along.

The only metrics that make sense measuring are those that you'll be playing at.

You know that some people have 144Hz monitors, there are now also Freesync monitors with 30Hz-144Hz range so higher then 60 does matter.