progs/perf: added glReadPixels benchmark
diff --git a/progs/perf/SConscript b/progs/perf/SConscript
index acd6564..224928b 100644
--- a/progs/perf/SConscript
+++ b/progs/perf/SConscript
@@ -12,8 +12,9 @@
       'drawoverhead',
       'fbobind',
       'fill',
-      'teximage',
+      "readpixels',
       'swapbuffers',
+      'teximage',
       'vbo',
       'vertexrate',
 ]