| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Cc: | Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, Mahendra Singh Thalor <mahi6run(at)gmail(dot)com>, Amit Langote <langote_amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Claudio Freire <klaussfreire(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, Sergei Kornilov <sk(at)zsrv(dot)org>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Subject: | Re: [HACKERS] Block level parallel vacuum |
| Date: | 2020-01-17 09:17:44 |
| Message-ID: | CAA4eK1L-LeEok04tnyEadJqTz_NUGae7SzWXsiBakkk_jiiRAw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Jan 17, 2020 at 12:51 PM Dilip Kumar <dilipbalaut(at)gmail(dot)com> wrote:
>
> On Fri, Jan 17, 2020 at 11:39 AM Dilip Kumar <dilipbalaut(at)gmail(dot)com> wrote:
> I have performed cost delay testing on the latest test(I have used
> same script as attahced in [1] and [2].
> vacuum_cost_delay = 10
> vacuum_cost_limit = 2000
>
> Observation: As we have concluded earlier, the delay time is in sync
> with the I/O performed by the worker
> and the total delay (heap + index) is almost the same as the
> non-parallel operation.
>
Thanks for doing this test again. In the attached patch, I have
addressed all the comments and modified a few comments.
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com
| Attachment | Content-Type | Size |
|---|---|---|
| v50-0001-Allow-vacuum-command-to-process-indexes-in-parallel.patch | application/octet-stream | 80.3 KB |
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