From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | Martijn van Oosterhout <kleptog(at)svana(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: PostgreSQL win32 fragmentation issue |
Date: | 2006-12-02 20:17:38 |
Message-ID: | 1165090658.18923.67.camel@localhost.localdomain |
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Thread: | |
Lists: | pgsql-hackers |
Starting point: 1% Fragmentation
transaction type: TPC-B (sort of)
scaling factor: 100
number of clients: 50
number of transactions per client: 1000
number of transactions actually processed: 50000/50000
tps = 46.001927 (including connections establishing)
tps = 46.045008 (excluding connections establishing)
Total Fragmentation: 2%
File Fragmentation: 5%
transaction type: TPC-B (sort of)
scaling factor: 100
number of clients: 50
number of transactions per client: 1000
number of transactions actually processed: 50000/50000
tps = 50.507082 (including connections establishing)
tps = 50.558191 (excluding connections establishing)
Total Fragmentation: 2%
File Fragmentation: 5%
transaction type: TPC-B (sort of)
scaling factor: 100
number of clients: 100
number of transactions per client: 1000
number of transactions actually processed: 100000/100000
tps = 45.976461 (including connections establishing)
tps = 46.026986 (excluding connections establishing)
Total Fragmentation: 2%
File Fragmentation: 5%
Initialize with scaling of 100
Total Fragmentation: 2%
File Fragmentation: 5%
transaction type: TPC-B (sort of)
scaling factor: 100
number of clients: 50
number of transactions per client: 1000
number of transactions actually processed: 50000/50000
tps = 43.054164 (including connections establishing)
tps = 43.090163 (excluding connections establishing)
Total Fragmentation: 2%
File Fragmentation: 5%
O.k. my guess here is that autovacuum is keeping up with the actual
pgbench runs and thus causing reusable tuples? Does that make sense?
Joshua D. Drake
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