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[perf] Mention cairo-perf-compare-backends in the README

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Chris Wilson 2009-06-13 08:24:22 +01:00
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perf/README
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@ -132,6 +132,22 @@ those tests:
./cairo-perf-diff -f HEAD -- text
Generating comparisons of different backends
--------------------------------------------
An alternate question that is often asked is, "how does the speed of one
backend compare to another?". cairo-perf-compare-backends can read files
generated by cairo-perf and produces a comparison of the backends for every
test.
Again, by way of example:
# Show relative performance of the backends
./cairo-perf-compare-backends cairo.perf
This will work whether the data files were generate in raw mode (with
cairo-perf -r) or cooked, (cairo-perf without -r).
Creating a new performance test
-------------------------------
This is where we could use everybody's help. If you have encountered a