> > It looks like the timeout for many Radeon DRI operations is controlled > by the dev_priv->usec_timeout value, which is copied from userspace via > ioctl in radeon_cp_init. This value can be as large as 100 MSECS! > > radeon_drv.h:#define RADEON_MAX_USEC_TIMEOUT 100000 /* 100 ms */ > > The driver does not seem to have a default for this, so you need to find > the userspace code that is initializing the DRI and find the value it is > being set to. > the current default is 10000 usecs from radeon_dri.h in xc/programs/Xserver/hw/xfree86/drivers/ati (Xorg tree) you can use the option CPusecTimeout in your /etc/X11/xorg.conf file to tweak this value ..
Previous investigations have found getting the 3D card and soundcard to balance latencies is difficult :-), I think the DRM could do with a bit of profiling on what the average times it takes for the GPU to become idle.. Dave. > Why is this allowed to be so large? > > Lee > > > > ------------------------------------------------------- > SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media > 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 > Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. > http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 > -- > _______________________________________________ > Dri-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/dri-devel > -- David Airlie, Software Engineer http://www.skynet.ie/~airlied / airlied at skynet.ie pam_smb / Linux DECstation / Linux VAX / ILUG person ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 -- _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
