| From: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
|---|---|
| To: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Bulk Insert tuning |
| Date: | 2008-02-26 14:43:51 |
| Message-ID: | 1204037031.4252.301.camel@ebony.site |
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| Thread: | |
| Lists: | pgsql-patches |
Following patch implements a simple mechanism to keep a buffer pinned
while we are bulk loading.
Performance gains measured as +20% gain for CREATE TABLE as SELECT, and
15-17% for COPY on very short rows. Measurable difference drops away and
is not measurable at all at 1000/bytes per row.
As a result, patch doesn't bother to implement buffer pinning for TOAST
operations.
Can I ask for some independent performance results please?
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
| Attachment | Content-Type | Size |
|---|---|---|
| fast_copy.v3.patch | text/x-patch | 15.7 KB |
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