Dave Winer links to one of his testers timing how long it takes to publish a post using Drummer — "less than 9.24 seconds" from hitting the + icon:
"pasted in this sentence, clicked the Publish icon, turned to the browser tab where my blog appears, and refreshed the screen"
Dave says he'd "love to see the same benchmark done with other blogging software."
The same process with (b)log-In takes less than 2 seconds with no need to change tabs or manually refresh. As soon as you hit "post" the change is instant.