From: | Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | 7.2 is slow? |
Date: | 2001-12-17 06:46:37 |
Message-ID: | 20011217154637R.t-ishii@sra.co.jp |
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Lists: | pgsql-hackers |
With the freshly retrieved current source, now PostgreSQL is running
fine on an AIX 5L box. Thanks Tom.
BTW, I have done some benchmarking using pgbench on this machine and
found that 7.2 is almost two times slower than 7.1. The hardware is a
4way machine. Since I thought that 7.2 improves the performance for
SMP machines, I'm now wondering why 7.2 is so slow.
postgresql.conf paramters changed from default values are:
max_connections = 1024
wal_sync_method = fdatasync
shared_buffers = 4096
deadlock_timeout = 1000000
configure option is: --enable-multibyte=EUC_JP
Of cousre, these setting are identical for both 7.1 and 7.2.
See attached graph...
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