“Avg # Writes per Log Page” reports the average number of times each log page was written to disk. The value is reported in the “count” column.
In high throughput applications, this number should be as low as possible. If the transaction log uses 2K I/O, the lowest possible value is 1; with 4K log I/O, the lowest possible value is .5, since one log I/O can write 2 log pages.
In low throughput applications, the number will be significantly higher. In very low throughput environments, it may be as high as one write per completed transaction.
