By switching to a new gf-complete with SIMD runtime detection, we can now remove all the different flavors of jerasure and shec. This simplifies deployment and configuration of erasure coding, enables hetergenous OSDs, and enables us to take advantage of new performance improvements in jerasure without config/build changes.
This commit removes flavors from cmake, removes ErasureCodePluginSelect___, and fixes unit tests. There is now a single plugin for jerasure and a single plugin for shec.
SIMDExt.cmake was changed so that its a little more generic, and is not polluted with gf-complete specific CFLAG defines. The #define for SIMD instruction were based on gf-complete.
I also added a small init helper for jerasure that has code that was common between jerasure and shec.
Signed-off-by: Bassam Tabbara <bassam.tabbara@quantum.com>
Update the PLUGINS variable that was no longer used. Add the TECHNIQUES
variable to control which techniques are compared.
Signed-off-by: Loic Dachary <loic@dachary.org>
ISA and Jerasure can be compared for the default stripe width (4KB) and
the two most commonly used Reed Solomon matrices. Comparing the
bandwidth for large chunks (1MB) is not relevant because it is not
commonly used.
Signed-off-by: Loic Dachary <ldachary@redhat.com>
The ceph_erasure_code_benchmark output is converted into a JSON series
suitable to display in HTML with the http://www.flotcharts.org/
library. A self contained copy of the HTML,JS,CSS files is included for
durability and can be used from the source tree with:
CEPH_ERASURE_CODE_BENCHMARK=src/ceph_erasure_code_benchmark \
PLUGIN_DIRECTORY=src/.libs \
qa/workunits/erasure-code/bench.sh fplot jerasure |
tee qa/workunits/erasure-code/bench.js
and display with:
firefox qa/workunits/erasure-code/bench.html
Signed-off-by: Loic Dachary <loic@dachary.org>
