Added to TODO: Reduce data row alignment requirements on some 64-bit systems * http://archives.postgresql.org/pgsql-hackers/2008-10/msg00369.php
--------------------------------------------------------------------------- Ryan Bradetich wrote: > Hello all, > > Here is a proof-of-concept patch for reducing the alignment > requirement for heap tuples on 64-bit systems. > This patch passes the regression tests and a couple of other data sets > I have thrown at it. > > I am hoping to get some early feedback on this patch so I have time to > make any corrections, improvements, > etc before the November commit-fest deadline. > > There are two visible savings in the system catalogs using this patch > (size was gathered using \S+): > > Catalog Pre-Patch Size After Patch Size > > pg_depend 312 kB 296 kB > pg_description 160 kB 152 kB > > > One thing I am considering, but I am not sure if it is worth the code > uglification, is to wrap the majority of these > checks in #ifdefs so they only are used on 64-bit systems. This > would completely eliminate the impact for this > patch on 32-bit systems, which would not gain any benefit from this patch. > > Feedback welcome! > > Thanks, > > - Ryan [ Attachment, skipping... ] > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers