Postgres Pro
Downloads
Home   >   mailing lists

Re: What exactly is our CRC algorithm? - Mailing list pgsql-hackers

From Abhijit Menon-Sen
Subject Re: What exactly is our CRC algorithm?
Date
Msg-id 20150101071723.GA17300@toroid.org
Whole thread Raw
In response to Re: What exactly is our CRC algorithm?  (Abhijit Menon-Sen <ams@2ndQuadrant.com>)
Responses Re: What exactly is our CRC algorithm?
List pgsql-hackers
Tree view 
Hi.

OK, here are the patches with the various suggestions applied.

I found that the alignment didn't seem to make much difference for the
CRC32* instructions, so I changed to process (len/8)*8bytes followed by
(len%8)*1bytes, the way the Linux kernel does.

-- Abhijit
Attachment

pgsql-hackers by date:

Previous
From: Amit Kapila
Date:
Subject: Re: Parallel Seq Scan
Next
From: David Rowley
Date:
Subject: Re: add modulo (%) operator to pgbench