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authorAdam Jackson <ajax@redhat.com>2011-12-13 21:23:12 -0500
committerAdam Jackson <ajax@redhat.com>2012-01-06 13:29:54 -0500
commit8f9bdfd293ad8e45755efe8d764b4dcc2a724f51 (patch)
tree3c8b84786ad15b1ea42a7b7622360dcdf510a0cb
parent83a98543b58c661a22574a6f8d8f9d777c0955b8 (diff)
dix: Tune dixLookupDrawable for success
The vast vast vast majority of resource lookups are successful. Move some work to the error paths so we don't punish success. Before: 40000000 trep @ 0.0009 msec (1109091.3/sec): PutImage 10x10 square 60000000 trep @ 0.0005 msec (2072652.2/sec): ShmPutImage 10x10 square After: 40000000 trep @ 0.0009 msec (1148346.9/sec): PutImage 10x10 square 60000000 trep @ 0.0005 msec (2091666.1/sec): ShmPutImage 10x10 square Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
-rw-r--r--dix/dixutils.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/dix/dixutils.c b/dix/dixutils.c
index 00bbde67c..2b5391f2d 100644
--- a/dix/dixutils.c
+++ b/dix/dixutils.c
@@ -202,13 +202,12 @@ dixLookupDrawable(DrawablePtr *pDraw, XID id, ClientPtr client,
int rc;
*pDraw = NULL;
- client->errorValue = id;
-
- if (id == INVALID)
- return BadDrawable;
rc = dixLookupResourceByClass((pointer *)&pTmp, id, RC_DRAWABLE, client, access);
+ if (rc != Success)
+ client->errorValue = id;
+
if (rc == BadValue)
return BadDrawable;
if (rc != Success)