RE: Optimize Arm64 crc32c implementation in Postgresql

2018-03-02 Thread Yuqi Gu
onfigure script be made by specific version autoconf ? Thanks! BRs, Yuqi -Original Message- From: Andres Freund [mailto:and...@anarazel.de] Sent: Friday, March 2, 2018 5:36 AM To: Yuqi Gu <yuqi...@arm.com> Cc: pgsql-hack...@postgresql.org Subject: Re: Optimize Arm64 crc32c im

Optimize Arm64 crc32c implementation in Postgresql

2018-01-09 Thread Yuqi Gu
Hi all Currently PostgreSQL only implements hardware support for CRC32 checksums for the x86_64 architecture. Some ARMv8 (AArch64) CPUs implement the CRC32 extension which is implemented by inline assembly, so they can also benefit from hardware acceleration in IO-intensive workloads. I would