Re: Freezing without write I/O

From: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
To: Andres Freund <andres(at)2ndquadrant(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Freezing without write I/O
Date: 2013-08-27 16:37:44
Message-ID: 521CD5D8.4090600@vmware.com
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On 27.08.2013 18:56, Heikki Linnakangas wrote:
> Here's an updated patch.

Ah, forgot one thing:

Here's a little extension I've been using to test this. It contains two
functions; one to simply consume N xids, making it faster to hit the
creation of new XID ranges and wraparound. The other,
print_xidlsnranges(), prints out the contents of the current XID-LSN
range array.

Also, just ran into two silly bugs in the patch version I posted, while
checking that that xidtest extension hasn't bitrotted. A fixed version
has been pushed to the git repository, so make sure you use that version
if you want to actually run it.

- Heikki

Attachment Content-Type Size
xidtest.tar.gz application/x-gzip 1.4 KB

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