Josh Berkus <josh@agliodbs.com> writes: > Looks like the CRC calculation work isn't the issue. I did test runs of > no-CRC vs. regular DBT2 with different checkpoint timeouts, and didn't > discern any statistical difference. See attached spreadsheet chart (the > two different runs are on two different machines).
Um, where are the test runs underlying this spreadsheet? I don't have a whole lot of confidence in looking at full-run average TPM numbers to discern whether transient dropoffs in TPM are significant or not. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend