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Switch the default migration heuristic for EXA to "always". 

This has been what has been used the most successfully post-damagetrack.
The current thinking is that:
1) We should be able to accelerate basically everything.  So we don't need to
   try to migrate trees of pixmaps permanently out of framebuffer to speed
   CPU drawing up.
2) Migration is cheaper in the thrashing case, so we don't want to go to a lot
   of effort to try (and fail badly) to find a working set.
This commit is contained in:
Eric Anholt 2006-12-28 13:21:25 -08:00
parent cfbc7379f0
commit 083b790515
2 changed files with 2 additions and 2 deletions
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2
exa/exa.c
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@ -622,7 +622,7 @@ exaDriverInit (ScreenPtr pScreen,
pScreen->devPrivates[exaScreenPrivateIndex].ptr = (pointer) pExaScr;
pExaScr->migration = ExaMigrationSmart;
pExaScr->migration = ExaMigrationAlways;
exaDDXDriverInit(pScreen);

2
hw/xfree86/exa/exa.man.pre
View File

@ -35,6 +35,6 @@ Default: No.
Chooses an alternate pixmap migration heuristic, for debugging purposes. The
default is intended to be the best performing one for general use, though others
may help with specific use cases. Available options include \*qalways\*q,
\*qgreedy\*q, and \*qsmart\*q. Default: smart.
\*qgreedy\*q, and \*qsmart\*q. Default: always.
.SH AUTHORS
Authors include: Keith Packard, Eric Anholt, Zack Rusin, and Michel Dänzer