Re: Vacuum: allow usage of more than 1GB of work mem

From: Claudio Freire <klaussfreire(at)gmail(dot)com>
To: Anastasia Lubennikova <lubennikovaav(at)gmail(dot)com>
Cc: PostgreSQL-Dev <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Vacuum: allow usage of more than 1GB of work mem
Date: 2016-12-22 18:18:07
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On Thu, Dec 22, 2016 at 12:22 PM, Claudio Freire <klaussfreire(at)gmail(dot)com> wrote:
> On Thu, Dec 22, 2016 at 12:15 PM, Anastasia Lubennikova
> <lubennikovaav(at)gmail(dot)com> wrote:
>> The following review has been posted through the commitfest application:
>> make installcheck-world: tested, failed
>> Implements feature: not tested
>> Spec compliant: not tested
>> Documentation: not tested
>> Hi,
>> I haven't read through the thread yet, just tried to apply the patch and run tests.
>> And it seems that the last attached version is outdated now. It doesn't apply to the master
>> and after I've tried to fix merge conflict, it segfaults at initdb.
> I'll rebase when I get some time to do it and post an updated version

Attached rebased patches. I called them both v3 to be consistent.

I'm not sure how you ran it, but this works fine for me:

./configure --enable-debug --enable-cassert
make clean
make check

... after a while ...

All 168 tests passed.

I reckon the above is equivalent to installcheck, but doesn't require
sudo or actually installing the server, so installcheck should work
assuming the install went ok.

Attachment Content-Type Size
0001-Vacuum-prefetch-buffers-on-backward-scan-v3.patch text/x-patch 2.5 KB
0002-Vacuum-allow-using-more-than-1GB-work-mem-v3.patch text/x-patch 20.2 KB

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