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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2012-11-25 02:50:35 +0200 |
|---|---|---|
| committer | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2012-12-06 17:20:35 +0200 |
| commit | b31a696263f1ae9aebb9bb21b93a0c15453bf611 (patch) | |
| tree | 228522d8c219425e68bc7eb1d0d3cf0cd36be567 /demos | |
| parent | 309e66f047cab0951d8e42628dcd181e2d14c58d (diff) | |
test: Switch to the new PRNG instead of old LCG
Wallclock time for running pixman "make check" (compile time not included):
----------------------------+----------------+-----------------------------+
| old PRNG (LCG) | new PRNG (Bob Jenkins) |
Processor type +----------------+------------+----------------+
| gcc 4.5 | gcc 4.5 | gcc 4.7 (simd) |
----------------------------+----------------+------------+----------------+
quad Intel Core i7 @2.8GHz | 0m49.494s | 0m43.722s | 0m37.560s |
dual ARM Cortex-A15 @1.7GHz | 5m8.465s | 4m37.375s | 3m45.819s |
IBM Cell PPU @3.2GHz | 23m0.821s | 20m38.316s | 16m37.513s |
----------------------------+----------------+------------+----------------+
But some tests got a particularly large boost. For example benchmarking and
profiling blitters-test on Core i7:
=== before ===
$ time ./blitters-test
real 0m10.907s
user 0m55.650s
sys 0m0.000s
70.45% blitters-test blitters-test [.] create_random_image
15.81% blitters-test blitters-test [.] compute_crc32_for_image_internal
2.26% blitters-test blitters-test [.] _pixman_implementation_lookup_composite
1.07% blitters-test libc-2.15.so [.] _int_free
0.89% blitters-test libc-2.15.so [.] malloc_consolidate
0.87% blitters-test libc-2.15.so [.] _int_malloc
0.75% blitters-test blitters-test [.] combine_conjoint_general_u
0.61% blitters-test blitters-test [.] combine_disjoint_general_u
0.40% blitters-test blitters-test [.] test_composite
0.31% blitters-test libc-2.15.so [.] _int_memalign
0.31% blitters-test blitters-test [.] _pixman_bits_image_setup_accessors
0.28% blitters-test libc-2.15.so [.] malloc
=== after ===
$ time ./blitters-test
real 0m3.655s
user 0m20.550s
sys 0m0.000s
41.77% blitters-test.n blitters-test.new [.] compute_crc32_for_image_internal
15.77% blitters-test.n blitters-test.new [.] prng_randmemset_r
6.15% blitters-test.n blitters-test.new [.] _pixman_implementation_lookup_composite
3.09% blitters-test.n libc-2.15.so [.] _int_free
2.68% blitters-test.n libc-2.15.so [.] malloc_consolidate
2.39% blitters-test.n libc-2.15.so [.] _int_malloc
2.27% blitters-test.n blitters-test.new [.] create_random_image
2.22% blitters-test.n blitters-test.new [.] combine_conjoint_general_u
1.52% blitters-test.n blitters-test.new [.] combine_disjoint_general_u
1.40% blitters-test.n blitters-test.new [.] test_composite
1.02% blitters-test.n blitters-test.new [.] prng_srand_r
1.00% blitters-test.n blitters-test.new [.] _pixman_image_validate
0.96% blitters-test.n blitters-test.new [.] _pixman_bits_image_setup_accessors
0.90% blitters-test.n libc-2.15.so [.] malloc
Diffstat (limited to 'demos')
| -rw-r--r-- | demos/Makefile.am | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/demos/Makefile.am b/demos/Makefile.am index f324f5f..96c43f0 100644 --- a/demos/Makefile.am +++ b/demos/Makefile.am @@ -6,7 +6,8 @@ AM_LDFLAGS = $(OPENMP_CFLAGS) LDADD = $(top_builddir)/pixman/libpixman-1.la -lm $(GTK_LIBS) $(PNG_LIBS) INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman $(GTK_CFLAGS) $(PNG_CFLAGS) -GTK_UTILS = gtk-utils.c gtk-utils.h ../test/utils.c ../test/utils.h +GTK_UTILS = gtk-utils.c gtk-utils.h ../test/utils.c ../test/utils.h \ + ../test/utils-prng.c ../test/utils-prng.h DEMOS = \ clip-test \ |