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PostgreSQL 9.0 x64 bit pgbench TPC very low question? - Mailing list pgsql-performance
From
tuanhoanganh
Subject
PostgreSQL 9.0 x64 bit pgbench TPC very low question?
Date
December 18, 2010
17:15:43
Msg-id
AANLkTimQRnUOaegLuQVvvoNPgahyEwxk7J6COuc5TUaH@mail.gmail.com
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Re: PostgreSQL 9.0 x64 bit pgbench TPC very low question?
(Jeff Janes <jeff.janes@gmail.com>)
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pgsql-performance
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I have server computer install Windows 2008R2, PostgreSQL 9.0.1 64 bit, 8G RAM, RAID 10 - 4 disks, dedicated server
Here is config of postgresql.conf after running pgtune
default_statistics_target = 100 # pgtune wizard 2010-12-15
maintenance_work_mem = 480MB # pgtune wizard 2010-12-15
constraint_exclusion = on # pgtune wizard 2010-12-15
checkpoint_completion_target = 0.9 # pgtune wizard 2010-12-15
effective_cache_size = 2816MB # pgtune wizard 2010-12-15
work_mem = 8MB # pgtune wizard 2010-12-15
wal_buffers = 32MB # pgtune wizard 2010-12-15
checkpoint_segments = 64 # pgtune wizard 2010-12-15
shared_buffers = 960MB # pgtune wizard 2010-12-15
max_connections = 254 # pgtune wizard 2010-12-15
After running pgbench
pgbench -i -h 127.0.0.1 -p 5433 -U postgres -s 10 pgbench
pgbench -h 127.0.0.1 -p 5433 -U postgres -c 100 -t 10 -C -s 10 pgbench
Scale option ignored, using pgbench_branches table count = 10
starting vacuum...end.
transaction type: TPC-B (sort of)
scaling factor: 10
query mode: simple
number of clients: 100
number of threads: 1
number of transactions per client: 10
number of transactions actually processed: 1000/1000
tps = 20.143494 (including connections establishing)
tps = 256.630260 (excluding connections establishing)
Why pgbench on my server is very low or is it common value with my server ?
Please help me. Thanks in advance.
Tuan Hoang ANh.
pgsql-performance
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