Hello.
I tried performance test of version 8.0.0 beta4 by osdl-dbt-1.
The result is that throughput of version 8 fell to about 70 percent
compared with V7.4.6.
Test result is below. (measurement was repeated 3 times)
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Hardware spec
CPU Pentium Ⅲ 531.986 MHz
Memory 125660 Kb
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Software version
OS Linux Kernel:2.4.21-4.EL
Distribution: Red Hat Enterprise Linux AS release 3
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Result（transaction per second）
first second third
7.4.6 6.8 6.8 5.9
8.0 beta4 4.3 4.6 4.4
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Parameter of DBT1,PostgreSQL
Database Size (items): 1000
Database Size (customers): 10
number of cache: 1
number of connections between cache and database: 10
number of application server: 1
number of connections between server and database: 20
number of drivers: 1
eus/driver: 100
rampuprate/driver: 60
duration/driver: 900
thinktime/driver: 1.6
Put WAL on different driver: 0
Put pgsql_tmp on different driver: 0
database parameters: -i -c listen_addresses='*'
shmmax: 33554432
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- Both version 8 and version 7 are performed under the same condition.
- Tuning of adjustment of a parameter was not carried out at all.
- The server and client process are performed in the same machine.
Is there the weak point on the performance in version 8.0.0 ?
Any help would greatly appreciated.
kondou
