Autogrow Enabled and Performance

  • Created a database and configured the initial datafile with 8 GB space. The current amount of data in this datafile is only 1 GB. I enabled autogrow for this datafile to grow at fixed space of 10 MB. I have a developer that claims that we will experience a performance hit because auto grow in enabled, even though we have initially configured with 8 GB space (giving us 7GB free space). He claims that autogrow will perform space checks for each transaction regardless if there is plenty of free space, thus causing a performance issue. Can someone help me out and explain autogrow and if there are reasons that we should not enable autogrow. Thx

  • I don't think the autogrow setting will affect you until it needs to grow. Most experts do not think you should set it autogrow. You definitely should not have it set to only grow 10MB on an 8GB file. You should have it set to at least 10% so that you do not grow often.

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