plot performance like ;plot rating about tle HOT 5 OPEN

I mean actual performance, as calculated by carrot addon.

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precalculate performances for all users in all contests and store in cache.
see #43 #196

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this shouldn't be too hard right? just approximate it as old rating + delta*4 or new rating + delta*3

from tle.

thats not performance. thats rating + delta*4

from tle.

yes but it is close to the actual performance for most circumstances and easy to add to the current ;ranklist command because you already know the delta and rating of each person

for example rating+delta*4 is used to calculate performance here: https://greasyfork.org/en/scripts/402180-codeforces-performance

or maybe I'm misunderstanding what you mean by performance

from tle.