hould fix it, but not backpatch.
I agree that backpatch is unnecessary.
I hope it will be fixed for the current development version
at some suitable opportunity.
Best regards,
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: pgsql-hackers-ow...
= hash_create("PrivateRefCount", 100, _ctl,
HASH_ELEM | HASH_BLOBS);
}
Attached patch is for the latest development version at the git repository.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
correction_of_PrivateRefC
s an example.
And also, 'Partitioned checkpointing' is worth to study why it is effective in
pgbench executions. By studying it, it may lead to devising better ways.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: pgsql-hackers-ow
probably worth than bug-fix version.
Best regards.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: pgsql-hackers-ow...@postgresql.org
> [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Takashi Horikawa
> Sent: S
> As to 'partitioned checkpointing' case, the results shown in that
graph
> is probably worth than bug-fix version.
^
worse
Sorry for typo.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message---
I think it's likely that the patch will have only a very small effect if
> applied ontop of Fabien's patch (which'll require some massaging I'm
sure).
It may be true or not. Who knows?
I think only detail experimentations tell the truth.
Best regards.
--
Takashi Horikawa
NEC Corporation
Know
itions' is fairly simple.
Best regards.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: Simon Riggs [mailto:si...@2ndquadrant.com]
> Sent: Friday, September 11, 2015 10:57 PM
> To: Fabien COELHO
> Cc: Horikawa Tak
mgr.h to xlog.h.
It would be also trivial.
Best regards.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
partitioned-checkpointing-v2.patch
Description: Binary data
smime.p7s
Description: S/MIME cryptographic signature
estigation aiming to
implement in future PostgreSQL.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
partitioned-checkpointing.patch
Description: Binary data
smime.p7s
Description: S/MIME cryptographic signature
raid1 of 2 SSDs for $PGDATA (other than pg_xlog)
'raid1' is wrong and 'raid0' is correct.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: Alvaro Herrera [mailto:pgsql-hackers-ow...@postgresql.org]
> Sent: Friday, Sep
Fabien,
Thanks for your comment.
I'll check them and try to examine what is the same and what is different.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
> -Original Message-
> From: pgsql-hackers-ow...@postgresql.org
> [mailto:pgsql-h
) (XLogCtl-pages + nextidx * (Size) XLOG_BLCKSZ);
'
in AdvanceXLInsertBuffer(XLogRecPtr upto, bool opportunistic)
, etc.
Only exception is
'page = XLogCtl-pages[firstIdx * XLOG_BLCKSZ];'
in
StartupXLOG(void)
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
that applying the patch makes 'wal_buffers = 4GB' works
fine, while original PostgreSQL-9.4.4 results in core dump (segfault). I'll be
happy if anyone reconfirm this.
--
Takashi Horikawa
NEC Corporation
Knowledge Discovery Research Laboratories
-Original Message-
From: pgsql-hackers-ow
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