mirror of https://github.com/ceph/ceph
60762338a2
ARMv8 defines a set of optional CRC32/CRC32C instructions. This patch defines an optimized function that uses these instructions when available rather than table-based lookup. Optimized function based on a Hadoop patch by Ed Nevill. Autotools updated to check for compiler support. Optimized function is selected at runtime based on HWCAP_CRC32. Added crc32c "performance" unit test and arch unit test. Tested on AMD Seattle. Passes all crc32c unit tests. Unit test shows ~4x performance increase versus sctp. Signed-off-by: Yazen Ghannam <yazen.ghannam@linaro.org> Reviewed-by: Steve Capper <steve.capper@linaro.org> |
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| .. | ||
| ac_check_class.m4 | ||
| ac_check_classpath.m4 | ||
| ac_check_rqrd_class.m4 | ||
| ac_java_options.m4 | ||
| ac_prog_jar.m4 | ||
| ac_prog_java.m4 | ||
| ac_prog_java_works.m4 | ||
| ac_prog_javac.m4 | ||
| ac_prog_javac_works.m4 | ||
| ac_prog_javah.m4 | ||
| ac_try_compile_java.m4 | ||
| ac_try_run_javac.m4 | ||
| acx_pthread.m4 | ||
| ax_arm.m4 | ||
| ax_c_pretty_func.m4 | ||
| ax_c_var_func.m4 | ||
| ax_check_compile_flag.m4 | ||
| ax_cxx_compile_stdcxx_11.m4 | ||
| ax_cxx_static_cast.m4 | ||
| ax_intel.m4 | ||