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1
2 I did not spend much time for tuning crash-me or the limits file. In short,
3 here's what I did:
4
5 - Put engine into ANSI SQL mode by using the following odbc.ini:
6
7 [ODBC Data Sources]
8 test
9
10 [test]
11 ServerDB=test
12 ServerNode=
13 SQLMode=3
14
15 - Grabbed the db_Oracle package and copied it to db_Adabas
16 - Implemented a 'version' method.
17 - Ran crash-me with the --restart option; it failed when guessing the
18 query_size.
19 - Reran crash-me 3 or 4 times until it succeeded. At some point it
20 justified its name; I had to restart the Adabas server in the
21 table name length test ...
22 - Finally crash-me succeeded.
23
24 That's it, folks. The benchmarks have been running on my P90 machine,
25 32 MB RAM, with Red Hat Linux 5.0 (Kernel 2.0.33, glibc-2.0.7-6).
26 Mysql was version 3.21.30, Adabas was version 6.1.15.42 (the one from
27 the promotion CD of 1997). I was using X11 and Emacs while benchmarking.
28
29 An interesting note: The mysql server had 4 processes, the three usual
30 ones and a process for serving me, each about 2 MB RAM, including a
31 shared memory segment of about 900K. Adabas had 10 processes running from
32 the start, each about 16-20 MB, including a shared segment of 1-5 MB. You
33 guess which one I prefer ... :-)
34
35
36 Jochen Wiedmann, joe@ispsoft.de