Edward Nevill created HADOOP-10752: -------------------------------------- Summary: Add support for hardware crc on ARM aarch64 architecture Key: HADOOP-10752 URL: https://issues.apache.org/jira/browse/HADOOP-10752 Project: Hadoop Common Issue Type: Improvement Components: native, performance Affects Versions: trunk-win Environment: ARM aarch64 Juno development platform Reporter: Edward Nevill Priority: Minor Fix For: trunk-win
This patch adds support for hardware crc for ARM's new 64 bit architecture. The patch is completely conditionalized on __arch64__ For the moment I have only done the non pipelined version as the hw I have only has 1 crc execute unit. Some initial benchmarks on terasort give sw crc: 107 sec hw crc: 103 sec The performance improvement is quite small, but this is limited by the fact that I am using early stage hw which is not performant. I have also built it on x86 and I think the change is fairly safe for other architectures because post conditionalization the src is identical on other architectures. This is the first patch I have submitted for Hadoop so I would welcome any feedback and help. -- This message was sent by Atlassian JIRA (v6.2#6252)