From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Magnus Hagander <magnus(at)hagander(dot)net> |
Cc: | Josh Berkus <josh(at)agliodbs(dot)com>, Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Why we are going to have to go DirectIO |
Date: | 2013-12-03 23:08:11 |
Message-ID: | 31495.1386112091@sss.pgh.pa.us |
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Magnus Hagander <magnus(at)hagander(dot)net> writes:
> On Tue, Dec 3, 2013 at 11:44 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
>> Would certainly be nice. Realistically, getting good automated
>> performace tests will require paying someone like Greg S., Mark or me
>> for 6 solid months to develop them, since worthwhile open source
>> performance test platforms currently don't exist. That money has never
>> been available; maybe I should do a kickstarter.
> So in order to get *testing* we need to pay somebody. But to build a great
> database server, we can rely on volunteer efforts or sponsorship from
> companies who are interested in moving the project forward?
And even more to the point, volunteers to reinvent the kernel I/O stack
can be found on every street corner? And those volunteers won't need any
test scaffolding to be sure that *their* version never has performance
regressions? (Well, no, they won't, because no such thing will ever be
built. But we do need better test scaffolding for real problems.)
regards, tom lane
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