| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: WAL prefetch (another approach) |
| Date: | 2020-08-13 06:57:20 |
| Message-ID: | CA+hUKGKciMMJbE-1+9oPKte977b++UU_X16kkOXTF_7QjP4+jA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Aug 6, 2020 at 10:47 PM Tomas Vondra
<tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
> On Thu, Aug 06, 2020 at 02:58:44PM +1200, Thomas Munro wrote:
> >On Tue, Aug 4, 2020 at 3:47 AM Tomas Vondra
> >> Any luck trying to reproduce thigs? Should I try again and collect some
> >> additional debug info?
> >
> >No luck. I'm working on it now, and also trying to reduce the
> >overheads so that we're not doing extra work when it doesn't help.
>
> OK, I'll see if I can still reproduce it.
Since someone else ask me off-list, here's a rebase, with no
functional changes. Soon I'll post a new improved version, but this
version just fixes the bitrot and hopefully turns cfbot green.
| Attachment | Content-Type | Size |
|---|---|---|
| v10-0001-Add-pg_atomic_unlocked_add_fetch_XXX.patch | text/x-patch | 3.3 KB |
| v10-0002-Allow-XLogReadRecord-to-be-non-blocking.patch | text/x-patch | 14.9 KB |
| v10-0003-Prefetch-referenced-blocks-during-recovery.patch | text/x-patch | 61.1 KB |
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