Healing Totems & Haste
by, 22-11-2012 at 09:21 PM (8122 Views)
I seem to be posting about Haste on a fairly regular basis at the moment. They’re all important topics, so there’s nothing that can be done about that. In any case, today’s subject is one for Restoration Shaman, and looks at the mystery surrounding healing totem breakpoints.
As you’re no doubt aware, there’s been some confusion about where the next tick for Healing Stream and Healing Tide Totems actually occurs. The mechanics of both were confirmed during the Beta, but our observed values were randomly off, with extra ticks occurring earlier than they should.
One of the theories I had as to why this occurred, which has been partially confirmed (I don't think this will ever be fully confirmed, but it does explain the behaviour) is that server load can add up to 200ms to the duration of the totem. This is consistent with the observed values, where we'd randomly get extra ticks, but the chance of getting an extra tick increased as we approached the next break point.
I'm just going to list the total haste percentages here, for reasons I'll explain shortly.
Healing Tide Totem
Extra Ticks Breakpoint +200ms 1 20.01% 17.61% 2 40.01% 37.22% 3 59.94% 56.80% 4 79.94% 76.44%
Healing Stream Totem
Extra Ticks Breakpoint +200ms 1 6.64% 5.24% 2 20.01% 18.45% 3 33.29% 31.54% 4 46.68% 44.77% 5 59.94% 57.92%
So we're looking at a 2.4-3.9% difference with just 200ms of delay for Healing Tide, while Healing Stream has a 1.4-2.0% difference. It's quite possible that latency contributes to this as well, but the variability of these means that we can't rely on either spell performing as expected.
It's entirely possible to reverse calculate the server latency from observed values. Using some data provided by Therya, who's running with a very nice 95ms latency (well, to me it is, but I'm usually 200-500ms), it's possible to get up to a 600ms delay due to server load.
This means that the desired breakpoints for Resto Shaman go from 12.51% for Earthliving +1 to 24.97% for Riptide +2. Since Haste is generally third place for Resto, it may be that after you hit 871 haste rating (assuming Ancestral Swiftness and a +5% haste raidbuff) you don't get any more, at all.
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