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Thousands of semops for every i/o - Mailing list pgsql-general

From	Jeffrey W. Baker
Subject	Thousands of semops for every i/o
Date	June 10, 2003 04:52:29
Msg-id	1055179678.5240.18.camel@noodles Whole thread Raw
Responses	Re: Thousands of semops for every i/o
List	pgsql-general
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This is the strace of a process which is deleting rows from four tables,
inside a transaction, one row at a time.  There are a lot of semops for
every i/o.  There are about 30 connections to this database currently.
I thought deletes in a transaction just flew along in Pg, because they
simply wrote the deleted transaction ID on the record.  It used to work
fine in my previous locally-built 7.2 on Debian, but this is 7.2.2 on
SuSE Enterprise Server 8.2.

Is there any way to prevent this?

semop(15106509, 0x7fbfffec60, 1)        = 0
semop(15106509, 0x7fbfffec30, 1)        = 0
semop(15106509, 0x7fbfffec40, 1)        = 0
semop(15106509, 0x7fbfffec50, 1)        = 0
semop(15106509, 0x7fbfffec60, 1)        = 0
semop(15106509, 0x7fbfffec30, 1)        = 0
semop(15106509, 0x7fbfffec40, 1)        = 0
semop(15106509, 0x7fbfffec50, 1)        = 0
semop(15106509, 0x7fbfffec60, 1)        = 0
semop(15106509, 0x7fbfffec30, 1)        = 0
semop(15106509, 0x7fbfffec40, 1)        = 0
semop(15106509, 0x7fbfffec50, 1)        = 0
semop(15106509, 0x7fbfffec60, 1)        = 0
semop(0, 0x7fbfffebf0, 1)               = 0
semop(0, 0x7fbfffec00, 1)               = 0
semop(11862378, 0x7fbfffeb80, 1)        = 0
semop(11862378, 0x7fbfffeb90, 1)        = 0
semop(0, 0x7fbfffebc0, 1)               = 0
semop(0, 0x7fbfffebd0, 1)               = 0
read(58, "\4\0\0\0(\32\212\206\v\0\0\0\360\1 \2\0 \0 \300\237|\0"...,
8192) = 8192
semop(0, 0x7fbfffebf0, 1)               = 0
semop(0, 0x7fbfffec00, 1)               = 0
semop(11862378, 0x7fbfffec00, 1)        = 0
semop(11862378, 0x7fbfffec10, 1)        = 0
semop(0, 0x7fbfffec10, 1)               = 0
semop(0, 0x7fbfffec20, 1)               = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(0, 0x7fbfffecb0, 1)               = 0
semop(0, 0x7fbfffecc0, 1)               = 0
semop(0, 0x7fbfffecd0, 1)               = 0
semop(0, 0x7fbfffece0, 1)               = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(11862378, 0x7fbfffec30, 1)        = 0
semop(11862378, 0x7fbfffec40, 1)        = 0
semop(11862378, 0x7fbfffec50, 1)        = 0
semop(11862378, 0x7fbfffec60, 1)        = 0
semop(0, 0x7fbfffebf0, 1)               = 0
semop(0, 0x7fbfffec00, 1)               = 0
semop(1638450, 0x7fbfffeb80, 1)         = 0
semop(1638450, 0x7fbfffeb90, 1)         = 0
semop(0, 0x7fbfffebc0, 1)               = 0
semop(0, 0x7fbfffebd0, 1)               = 0
read(58, "\4\0\0\0\230\211\247\206\v\0\0\0\354\1 \2\0 \0 \300\237"...,
8192) = 8192
semop(0, 0x7fbfffebf0, 1)               = 0
semop(0, 0x7fbfffec00, 1)               = 0
semop(1638450, 0x7fbfffec00, 1)         = 0
semop(1638450, 0x7fbfffec10, 1)         = 0
semop(0, 0x7fbfffec10, 1)               = 0
semop(0, 0x7fbfffec20, 1)               = 0
semop(1638450, 0x7fbfffec30, 1)         = 0
semop(1638450, 0x7fbfffec40, 1)         = 0
semop(1638450, 0x7fbfffec50, 1)         = 0
semop(1638450, 0x7fbfffec60, 1)         = 0
semop(0, 0x7fbfffecb0, 1)               = 0
semop(0, 0x7fbfffecc0, 1)               = 0
semop(0, 0x7fbfffecd0, 1)               = 0
semop(0, 0x7fbfffece0, 1)               = 0
semop(1638450, 0x7fbfffec30, 1)         = 0
semop(1638450, 0x7fbfffec40, 1)         = 0
semop(1638450, 0x7fbfffec50, 1)         = 0
semop(1638450, 0x7fbfffec60, 1)         = 0
semop(1638450, 0x7fbfffec30, 1)         = 0
semop(1638450, 0x7fbfffec40, 1)         = 0
semop(1638450, 0x7fbfffec50, 1)         = 0
semop(1638450, 0x7fbfffec60, 1)         = 0
semop(1638450, 0x7fbfffec30, 1)         = 0
semop(1638450, 0x7fbfffec40, 1)         = 0
semop(1638450, 0x7fbfffec50, 1)         = 0
pgsql-general by date:
From: "Robert Fitzpatrick"
Date: 10 June 2003, 04:52:20
Subject: Pg_dumpall from different versions
From:
Date: 10 June 2003, 04:57:35
Subject: Re: Backups and restores.
Thousands of semops for every i/o - Mailing list pgsql-general

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