Posted 26 November 2008 - 03:53 PM
I'm going to copy and paste a portion of my WOTLK affliction raiding guide here. Basically, it's a synapse of how to determine your DoT uptime. I'd hope this is useful for anyone looking to dissect a warlock WWS report.
The sample below references a WWS brutallus report.
Let's figure out what my DoT uptime was. To start, we need to know what the total combat length of the boss fight was in seconds. At the top of a WWS report, you'll see the date, time, and length of fight in minutes/seconds. In my example, the fight was 2 minutes and 39 seconds long. So, that's 159 seconds.
Next, to figure out DoT uptime, we need to determine what 100% uptime would be for each DoT. This is done by taking the length of the fight and dividing it by the interval of a DoTs tick. For example, corruption, UA, siphon life, and immolate all tick every 3 seconds. 159 / 3 = 53. So, if I had 53 ticks of each of those DoTs, that would be 100% uptime. To see how many times your DoTs ticked, look under each spell, and look under the column that says "Dots".
I had as follows:
-Corruption: 48 ticks
-UA: 42 ticks
-Immolate: 39 ticks
-Siphon Life: 46 ticks
As you can see, in that fight my UA and Immolate uptime was not quite up to speed. Also, remember that 100% uptime is not realistic. Especially if the mechanics of the fight stress execution over DPS via moving around, doing other things, etc.
For CoA, which ticks every 2 seconds, that would be 159 / 2 = 79 (round down). I had 68 ticks, so that's not too bad. To determine uptime, take the number of ticks you had and divide it by the number of ticks you would have had with 100% uptime. So, for CoA: 68/79 = .86 or, 86% uptime. 85-90% uptime is a realistic goal in a stand-up tank and spank single target fight.