My understanding is that it is slow because there is no JIT for arm. Please correct me if I'm wrong. I ran Java on Debian on my Mac Powerbook (PPC) when the JIT wasn't working and it was unusable.
On Friday, November 18, 2016 10:49 PM, Orion Poplawski orion@cora.nwra.com wrote:
I'm building protobuf 3.1.0 for rawhide. The arm build is incredibly slow.
See http://koji.fedoraproject.org/koji/taskinfo?taskID=16512668
Entire x86_64 build took 21 minutes. Steps in the isValidUtf8Test look like:
Nov 18, 2016 4:18:01 PM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Round tripped 18304 of 65536 Nov 18, 2016 4:18:01 PM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Round tripped 18304 of 65536 Nov 18, 2016 4:18:02 PM com.google.protobuf.IsValidUtf8TestUtil testBytes
It's been running for over 11.5 hours on arm, and test steps look like:
Nov 18, 2016 6:06:31 PM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Round tripped 18304 of 65536 Nov 18, 2016 6:07:50 PM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Round tripped 18304 of 65536 Nov 18, 2016 6:09:15 PM com.google.protobuf.IsValidUtf8TestUtil testBytes
and has increased in time to:
Nov 19, 2016 2:52:51 AM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Processed 15 million characters Nov 19, 2016 3:15:25 AM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Processed 16 million characters Nov 19, 2016 3:32:52 AM com.google.protobuf.IsValidUtf8TestUtil testBytes INFO: Round tripped 2650112 of 16777216
Have there been any other reports of issues like this on arm?