I hadn't concentrated on the INSERT/UPDATE/DELETE speed of this until today
and I find that it's amazingly slow. Of course the time it takes is relative
to the size of the text but still, almost a minute to delete one record on a
Dual celeron 600 with 256 Megs of RAM and an ATA/66 7200 RPM 30 GIG hard
drive... INSERTs seem to be quite a bit faster (which puzzles me) but
they're still 10-20 seconds for a single record... UPDATEs seems very fast
(a few seconds).
I do have a lot of stop works in fti.c, however when I imported the 10,000
text files into the data base it was super fast (before I created indexes)
so I'm assuming that the indexes are slowing down the INSERTs UPDATEs and
DELETEs, which is expected I think? The database is VACUUMed on a regular
basis (and VACUUM ANALYZEed as well).
I'd rather have the fast search than the fast data entry, I just want to be
absolutely sure that I can't do anything to speed things along..
If I run PGOPTIONS="-d2 -s" psql databasename
I get this in the logs on an INSERT -- it doesn't appear to give any stats
on the queries that the function called by the fti trigger is doing..
--Here is my insert query (20k of text) --
query: INSERT INTO resumes_fti (string, id) VALUES ($1, $2)
! system usage stats:
! 0.644167 elapsed 0.380151 user 0.126785 system sec
! [0.387579 user 0.149069 sys total]
! 9/2 [13/2] filesystem blocks in/out
! 0/2228 [0/2459] page faults/reclaims, 0  swaps
! 0  signals rcvd, 0/0 [3/3] messages rcvd/sent
! 9/4 [16/7] voluntary/involuntary context switches
! postgres usage stats:
! Shared blocks: 20 read, 0 written, buffer hit rate
! Local blocks: 0 read, 0 written, buffer hit rate
! Direct blocks: 0 read, 0 written
Like I said, I just need to know if this is expected or if there might be
something (anything) I can do to speed it up.. It's going to be running on a
damn fast machine so I'm sure that these times are going to get smaller, if
not from just brute force.
pgsql-sql by date
|Next:||From: Bruce Momjian||Date: 2000-06-24 18:33:30|
|Subject: Re: More full text index..|
|Previous:||From: K Parker||Date: 2000-06-24 05:14:42|
|Subject: Re: Wildcard in date field|