Optimizing SQL Insert Performance - GSE Belux
Optimizing SQL Insert Performance - GSE Belux
Optimizing SQL Insert Performance - GSE Belux
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Read and Write I/O for Index and Data …<br />
• Sequential insert to the end of data set<br />
– For data row insert, and/or ever-ascending or descending di index key insert<br />
– Can eliminate sync read I/O<br />
– Deferred async write I/O only for contiguous pages<br />
• ~0.4 ms per page filled with inserted rows<br />
• Time depends on channel type, device type and I/O path utilisation<br />
25<br />
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