Thread URL added to TODO: * SMP scalability improvements
--------------------------------------------------------------------------- Paul van den Bogaard wrote: > Just started a blog session on my findings running Postgres 8.3(beta) > on a mid range Sun Fire server. Second entry is about the time lost > on LWLock handling. When concurrency increases you can see the > ProcArrayLock wait queue to start and explode. > > http://blogs.sun.com/paulvandenbogaard/entry/ > leight_weight_lock_contention > > I will add more posts on all the other LWlock findings and the > instrumentation method being used. Unfortunately a high priority > project popped up I need to focus on. So please be patient. Hope to > finish this in the first week of april. > > Thanks, > Paul > > > On 13-mrt-2008, at 16:56, Tom Lane wrote: > > > Mark Mielke <[EMAIL PROTECTED]> writes: > >> Alvaro Herrera wrote: > >>> How about this wording: > >>> "Review Simon's claims to improve performance > > > >> What sort of evidence is usually compelling? It seems to me that this > >> sort of change only benefits configurations with dozens or more > >> CPUs/cores? > > > > The main point in my mind was that that analysis was based on the code > > as it then stood. Florian's work to reduce ProcArrayLock contention > > might have invalidated some or all of the ideas. So it needs a fresh > > look. > > > > regards, tom lane > > > > -- > > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > > To make changes to your subscription: > > http://www.postgresql.org/mailpref/pgsql-hackers > > ------------------------------------------------------------------------ > --------------------- > Paul van den Bogaard > [EMAIL PROTECTED] > ISV-E -- ISV Engineering, Opensource Engineering group > > Sun Microsystems, Inc phone: +31 > 334 515 918 > Saturnus 1 > extentsion: x (70)15918 > 3824 ME Amersfoort mobile: +31 > 651 913 354 > The Netherlands > fax: +31 334 515 001 > > > -- > 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 <[EMAIL PROTECTED]> http://momjian.us EnterpriseDB http://postgres.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