[Bug 55296] [KMS] Extremely low performance of XDrawImageString

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55296

--- Comment #2 from Mihail Zenkov <mihail.zenkov at gmail.com> ---
Much better now, but NoAccel still faster.


xf86-video-ati-7.5.0
rs740:
    default            170ms
    "RenderAccel" "0"  200ms
    "NoAccel" "1"      53ms
    glamor             160ms (test ok, but some others apps have artifacts)

hd6770:
    default           90ms
    "RenderAccel" "0" 100ms
    "NoAccel" "1"     34ms
    glamor 85ms



xf86-video-ati-git 80f3d727f93cb6efedd2
hd6770:

    default        85ms
    glamor         75ms
    "NoAccel" "1"  34ms
    "TearFree" "1" freeze (black screen) on xorg-server startup (Xorg.0.log
look like for normal xorg-server startup)
    "TearFree" "1" + glamur  freeze (black screen) on xorg-server startup
        from Xorg.0.log:

[     9.356] (II) Mouse0: Setting mouse protocol to "ExplorerPS/2"
[     9.649] (II) Mouse0: ps2EnableDataReporting: succeeded
[     9.649] (EE)
[     9.649] (EE) Backtrace:
[     9.650] (EE) 0: X (xorg_backtrace+0x3e) [0x81b1baa]
[     9.650] (EE) 1: X (0x8048000+0x16d28e) [0x81b528e]
[     9.650] (EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) [0xb7753b34]
[     9.650] (EE) 3: X (GetScratchGC+0x24) [0x808e314]
[     9.650] (EE) 4: /usr/lib/xorg/modules/drivers/radeon_drv.so
(0xb706a000+0x4844d) [0xb70b244d]
[     9.650] (EE) 5: /usr/lib/xorg/modules/drivers/radeon_drv.so
(radeon_scanout_update_handler+0x14) [0xb70b2ce1]
[     9.650] (EE) 6: /usr/lib/xorg/modules/drivers/radeon_drv.so
(0xb706a000+0x4fd51) [0xb70b9d51]
[     9.650] (EE) 7: /usr/lib/xorg/modules/drivers/radeon_drv.so
(drmmode_set_desired_modes+0x185) [0xb70bb005]
[     9.650] (EE) 8: /usr/lib/xorg/modules/drivers/radeon_drv.so
(0xb706a000+0x491ad) [0xb70b31ad]
[     9.650] (EE) 9: X (BlockHandler+0x42) [0x8081ecf]
[     9.650] (EE) 10: X (WaitForSomething+0x252) [0x81af792]
[     9.650] (EE) 11: X (Dispatch+0x8e) [0x807d8fd]
[     9.650] (EE) 12: X (dix_main+0x4a0) [0x8081780]
[     9.650] (EE) 13: X (main+0x2a) [0x806dad5]
[     9.651] (EE) 14: /lib/libc.so.6 (__libc_start_main+0x16e) [0xb74501e7]
[     9.651] (EE) 15: X (0x8048000+0x259c1) [0x806d9c1]
[     9.651] (EE)
[     9.651] (EE) Segmentation fault at address 0x5
[     9.651] (EE)
Fatal server error:
[     9.651] (EE) Caught signal 11 (Segmentation fault). Server aborting
[     9.651] (EE)
[     9.651] (EE)
Please consult the The X.Org Foundation support
     at http://wiki.x.org
 for help.
[     9.651] (EE) Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
[     9.651] (EE)
[     9.651] (II) AIGLX: Suspending AIGLX clients for VT switch

    "ShadowPimary" "1"           85ms
    "ShadowPimary" "1" + glamor  95ms



old notebook with intel 945gm:
    sna     18ms

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