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Re: Speed during import - locating the bottleneck

From: Ronny T. Lampert <telecaadmin_at_uni.de>
Date: 2005-03-09 13:04:26 CET


> I've noticed that the import of projects seems to be very very slow. The
> initial import of an 100 MB Binary file lasts about 5 Minutes -> 20 MB per
> Minute.

Try setting

set_flags DB_TXN_NOSYNC


# Disable fsync of log files on transaction commit. Read the
# documentation about DB_TXN_NOSYNC at:
# http://www.sleepycat.com/docs/api_c/env_set_flags.html

I don't know if the sync is per file, but working with ~250MB Sources and
20.000 files imports, this greatly improved performance.

Beware that this may harm data integrity when using non-server hardware
(secured thru UPS, ...)


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Received on Wed Mar 9 13:06:54 2005

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