Re: JAVA vs PERL : PERL wins to postgreSQL
| От | Joe Shevland |
|---|---|
| Тема | Re: JAVA vs PERL : PERL wins to postgreSQL |
| Дата | |
| Msg-id | CDDF6190494B6648934181A2719E72C1019E8507@ausyd0405.au.deloitte.com обсуждение исходный текст |
| Ответ на | JAVA vs PERL : PERL wins to postgreSQL (andy <andy@exkom.co.za>) |
| Список | pgsql-jdbc |
> I ran a few bench marks on JAVA writing to a postgreSQL table > using and > found that for the same number of records added to the table as a > similar PERL routine the following results : > PERL 39 seconds : JAVA 45 Seconds. > In a similar experiment where PERL and JAVA did treir output to the > screen and not to a table, > > JAVA took 3 seconds and PERL 310 Seconds. Was that 310 milliseconds in Perl? > My conclusion is that the database driver to postgreSQL is still far > from efficient in the JAVA implementation. One thing that may affect the Java performance when written out to the screen is the overhead of using System.out.println() calls as these are a call to native code and synchronized too for multithreaded output. Maybe if we can pump the test through a profiler and work out where the bulk of the Java operations are occurring for test 1. Regards, Joe
В списке pgsql-jdbc по дате отправления: