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* Experiment with multi-threaded backend better I/O utilization

  This would allow a single query to make use of multiple I/O channels
  simultaneously.  One idea is to create a background reader that can
  pre-fetch sequential and index scan pages needed by other backends.
  This could be expanded to allow concurrent reads from multiple devices
  in a partitioned table.

* Experiment with multi-threaded backend better CPU utilization

  This would allow several CPUs to be used for a single query, such as
  for sorting or query execution.
This commit is contained in:
Bruce Momjian
2008-03-18 23:35:21 +00:00
parent 8426b5640e
commit 2f2b58d642
2 changed files with 23 additions and 14 deletions
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@ -1,7 +1,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (bruce@momjian.us)
Last updated: Tue Mar 18 19:32:48 EDT 2008
Last updated: Tue Mar 18 19:35:12 EDT 2008
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@ -1630,13 +1630,18 @@ Miscellaneous Performance
http://archives.postgresql.org/pgsql-general/2007-02/msg00493.php
* Experiment with multi-threaded backend better resource utilization
* Experiment with multi-threaded backend better I/O utilization
This would allow a single query to make use of multiple CPU's or
multiple I/O channels simultaneously. One idea is to create a
background reader that can pre-fetch sequential and index scan
pages needed by other backends. This could be expanded to allow
concurrent reads from multiple devices in a partitioned table.
This would allow a single query to make use of multiple I/O channels
simultaneously. One idea is to create a background reader that can
pre-fetch sequential and index scan pages needed by other backends.
This could be expanded to allow concurrent reads from multiple devices
in a partitioned table.
* Experiment with multi-threaded backend better CPU utilization
This would allow several CPUs to be used for a single query, such as
for sorting or query execution.
* Consider increasing the minimum allowed number of shared buffers