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| author | Even Rouault <even.rouault@spatialys.com> | 2020-04-30 11:52:42 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2020-05-20 20:30:21 +0200 |
| commit | 07d1f775a1ef95496b0c78b18f671dac41983320 (patch) | |
| tree | 6e69f9d1e92244c2fc1ec4d3b9b4975e7b37b6c4 /tools | |
| parent | 97eb7e0bf17b476d516262e0af462ec7eeb8f505 (diff) | |
Add multithreaded support in the DWT encoder.
Update the bench_dwt utility to have a -decode/-encode switch
Measured performance gains for DWT encoder on a
Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (4 cores, hyper threaded)
Encoding time:
$ ./bin/bench_dwt -encode -num_threads 1
time for dwt_encode: total = 8.348 s, wallclock = 8.352 s
$ ./bin/bench_dwt -encode -num_threads 2
time for dwt_encode: total = 9.776 s, wallclock = 4.904 s
$ ./bin/bench_dwt -encode -num_threads 4
time for dwt_encode: total = 13.188 s, wallclock = 3.310 s
$ ./bin/bench_dwt -encode -num_threads 8
time for dwt_encode: total = 30.024 s, wallclock = 4.064 s
Scaling is probably limited by memory access patterns causing
memory access to be the bottleneck.
The slightly worse results with threads==8 than with thread==4
is due to hyperthreading being not appropriate here.
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/ctest_scripts/travis-ci.cmake | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/ctest_scripts/travis-ci.cmake b/tools/ctest_scripts/travis-ci.cmake index 75ed6f6b..0d54773c 100644 --- a/tools/ctest_scripts/travis-ci.cmake +++ b/tools/ctest_scripts/travis-ci.cmake @@ -121,6 +121,9 @@ BUILD_TESTING:BOOL=${BUILD_TESTING} # Build Thirdparty, useful but not required for test suite BUILD_THIRDPARTY:BOOL=TRUE +# Build unit tests that test subcomponents of libopenjp2 (e.g. DWT) +BUILD_UNIT_TESTS:BOOL=TRUE + # JPEG2000 test files are available with git clone https://github.com/uclouvain/openjpeg-data.git OPJ_DATA_ROOT:PATH=$ENV{PWD}/data |