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Re: write/insert performance problem (not solved for me)
Posted by: Szilard Dorant
Date: April 21, 2005 06:43AM

Hi,

I am facing the same problem with version 4.1.

We cannot disable autocommit, because concurrent import processes must "see" each other's data (we search for duplicate data during the insertion of each row).

Earlier versions (3.23 and 4.0) and all the other RDBMS's import fine with autocommit, while MySQL 4.1 uses the HDD very heavily, provessor utilization is very low.

We use JDBC, but it's probably not driver independent (I have used the same driver, but different MySQL installations)

I have only tested this on Win XP yet, using default installation options for all versions.

It is interesting, that the same 4.1.x version imports smoothly on some machines ... maybe it's only slow on certain filesystems ?

Any suggestions are highly appreciated.

Best regards,

Szilard

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