ESO Logs is a powerful analysis tool, but lots of people don’t know how to use it properly even for most basic checks. I will present a guideline on most important tabs and algorythms for getting desired information.
However, before even starting with overview:
RULE #1 OF READING LOGS: Generalized tabs are irrelevant and uptimes on them are irrelevant. To correctly see ones performance, you have to select either a friendly player to access their buff contribution, or an enemy to check debuff uptimes on it. We can do it by clicking on “Friendlies” or “Enemies” here:
Clicking on “All Friendlies” or “All enemies” will show us a dropdown list, where everything is pretty obvious for group members, and a bit more interesting for enemies. Below the dropdown list for enemies you will see next icons:
Clicking on left blue icon will select “All bosses” and clicking on orange scamp icon will select “All adds”
Remember this, as this is going to be a routine part of every uptime check.
After a bit of observation I decided to add RULE #2: always pick a specific fight to analyze. “All encounters” or “All encounters and trash” is completely irrelevant for analyzis.
TAB OVERVIEW
Summary - general overview of everything in raid group including composition, total damage done, total healing done, deaths, damage taken. Irrelevant until clicked on specific group members, which shows their complete gear and skill setups. Serves as a basic check.
Damage done - total damage done by each individual group member and group overall. Usually people are interested in single target boss damage, but on some fights cleave is also important. Mostly irrelevant for healers. Useful for raidleaders tho. To check single target damage do not forget to select “Friendlies” above the tabs and “All bosses” blue icon in the dropdown list below tabs:
Damage taken - total damage taken by individual group members and group as a whole. Use the same logic as above. Click on “All abilities” to see the dropdown for sources of damage taken, if you’re curious about specific abilities. Rarely used tab, mostly to check for players mechanical mistakes.
Note, that if you will switch from “Friendlies” to “Enemies”, you will practically flip damage done and damage taken tabs.
Healing - shows total healing done by individual group members and group as a whole. Used as a basic check to see if a healer is consistently keeping up healing overtime and reacts well to high damage mechanics. Also serves as comparison tool for potential of different healing abilties. Read more in healing-tab
Threat - shows aggro. Irrelevant for healers.
Buffs and Debuffs - our major interest. Has full information on all buffs gained by group and debuffs applied by group, along with debuffs gained by the group and are main “skill-judging” tabs. Read more in buffs-tab and <#988454690792566895>
Deaths - contains full information of damage taken and healing taken leading to players death. Great tab to figure out if its healers fault or not. Read more in <#988454891691339826>
Interrupts - another irrelevant for healing tab
Dispels - contains information on successful dispels (purges). Rarely used
Resources - shows pretty graphs of resource management of health, stamina, magicka and ultimate for individual group members. Great tool for adjusting builds and theorycrafting ultimate rotations. Read more in <#997421055566168105>
Casts - last but not the least important tab with statistics on players casts. Read more in casts-and-cpm