| From: | Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at> |
|---|---|
| To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | AW: Re: TODO list |
| Date: | 2001-04-05 15:45:46 |
| Message-ID: | 11C1E6749A55D411A9670001FA687963368271@sdexcsrv1.f000.d0188.sd.spardat.at |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
> > 1. Under "RELIABILITY/MISC", add:
> >
> > Write out a CRC with each data block, and verify it on reading.
> TODO updated. I know we did number 2, but did we agree on #1 and is it
> done?
Has anybody done performance and reliability tests with CRC64 ?
I think it must be a CPU eater. It looks a lot more complex than a CRC32.
Since we need to guard a maximum of 32k bytes for pg pages I would - if at all -
consider to use a 32bit adler instead of a CRC, since that is a lot cheaper
to calculate.
Andreas
| From | Date | Subject | |
|---|---|---|---|
| Next Message | matthew green | 2001-04-05 16:26:09 | re: [lockhart@alumni.caltech.edu: Third call for platform testing] |
| Previous Message | Tom Lane | 2001-04-05 14:17:43 | Re: [lockhart@alumni.caltech.edu: Third call for platform testing] |