At this stage, the information that Bioware has provided indicates that combat logs will be client-side only. This means that you can only you will see how well you are doing. I hope this stays true. being able to better yourself is one thing. Being able to judge others on their performance is another. I am just hoping no classes get judged once the combat logs become available.
Georg Zoeller provided us with a breakdown of what the combat log is. As you can see, with this combat log we will be able to calculate DPS (damage per second), healing per second and threat generated. A threat meter is something that may help a lot of players in raid scenarios. Bioware have released this information to the media community to allow them to start work on mods for SWTOR.
Iotasquared created a simple combat log parser that parses the combat logs and prints out damage/heals/threat stats here.
Read on to see a full example of what an exported combat log looks like, supplied by Bioware. Warning: this looks like scrambled text to the uninitiated.
[03/01/2012 14:19:14] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Lucky Shots {1781496599806223}] ()
[03/01/2012 14:19:14] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Fortification {1781496599806227}] ()
[03/01/2012 14:19:14] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Force Might {1781496599805952}] ()
[03/01/2012 14:19:14] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Force Valor {1781496599806219}] ()
[03/01/2012 14:19:14] [@Idrurrez] [@Idrurrez] [Safe Login {973870949466112}] [ApplyEffect {836045448945477}: Safe Login Immunity {973870949466372}] ()
[03/01/2012 14:19:15] [@Idrurrez] [@Idrurrez] [Sprint {810670782152704}] [ApplyEffect {836045448945477}: Sprint {810670782152704}] ()
[03/01/2012 14:19:15] [@Idrurrez] [@Idrurrez] [Shien Form {1280806492307456}] [ApplyEffect {836045448945477}: Shien Form {1280806492307456}] ()
[03/01/2012 14:19:28] [@Idrurrez] [@Idrurrez] [Safe Login {973870949466112}] [RemoveEffect {836045448945478}: Safe Login Immunity {973870949466372}] ()
[03/01/2012 14:19:55] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Lucky Shots {1781496599806223}] ()
[03/01/2012 14:19:55] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Fortification {1781496599806227}] ()
[03/01/2012 14:19:55] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Force Might {1781496599805952}] ()
[03/01/2012 14:19:55] [@Idrurrez] [@Idrurrez] [Force Might {1781496599805952}] [ApplyEffect {836045448945477}: Force Valor {1781496599806219}] ()
[03/01/2012 14:19:55] [@Idrurrez] [@Idrurrez] [Safe Login {973870949466112}] [ApplyEffect {836045448945477}: Safe Login Immunity {973870949466372}] ()
[03/01/2012 14:19:56] [@Idrurrez] [@Idrurrez] [Sprint {810670782152704}] [ApplyEffect {836045448945477}: Sprint {810670782152704}] ()
[03/01/2012 14:19:56] [@Idrurrez] [@Idrurrez] [Shien Form {1280806492307456}] [ApplyEffect {836045448945477}: Shien Form {1280806492307456}] ()
[03/01/2012 14:20:05] [@Idrurrez] [@Idrurrez] [Safe Login {973870949466112}] [RemoveEffect {836045448945478}: Safe Login Immunity {973870949466372}] ()