Re: SSI non-serializable UPDATE performance

Dan Ports <drkp@csail.mit.edu>

From: Dan Ports <drkp@csail.mit.edu>

To: pgsql-hackers@postgresql.org

Date: 2011-04-25T03:33:08Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Add fast paths for cases when no serializable transactions are running.
- 02e6a115cc61 9.1.0 cited

Attachments

ssi-fast-bailout.patch (text/x-diff) patch

On Sat, Apr 23, 2011 at 08:54:31AM -0500, Kevin Grittner wrote:
> Even though this didn't show any difference in Dan's performance
> tests, it seems like reasonable insurance against creating a new
> bottleneck in very high concurrency situations.
>  
> Dan, do you have a patch for this, or should I create one?

Sure, patch is attached.

Dan

-- 
Dan R. K. Ports              MIT CSAIL                http://drkp.net/