debug log options not documented

[gotqn]

I have few questions about the information that is recorded in the log file with debug option specified:

1. Is there a way to detect the exact model of the GPU? I have the following line:

   [13:12:39] GPU 0 assigned: iAdapterIndex:0 iPresent:1 strUDID:256:26520:4098:12289:5963 iBusNumber:1 iDeviceNumber:0 iDrvIndex:0 iFunctionNumber:0 iVendorID:4098 name:AMD Radeon R9 200 Series 

   I was not able to do so using the iVendorID.

2. Is there a date change event? I see only DD:MM:SS time format in front of each record.
3. What does Tahiti means?

4. In the line below:

   [13:12:48] 46.0 C  F: 50%(2548RPM)  E: 1100MHz  M: 1500Mhz  V: 1.256V  A: 99%  P: 20%

   What do each of the following arguments mean:

   • RPM
   • P

5. In the line below:

   [13:13:11] (5s):6.047M (avg):6.243Mh/s | A:1  R:0  HW:0  WU:0.019/m

   What do each of the following arguments mean:

   • (5s) - I guess this is average hash rate for last 5 seconds
   • (avg) - I guess this is average hash rate from sgminer start
   • A - I guess accepted. What's the measure?
   • R - I guess rejected. What's the measure?
   • HR - I guess hardware errors. What's the measure?
   • WU

6. I am not able to understand the following events:

   [13:13:24] GPU 1 found something?
   [13:13:24] OCL NONCE 527534080 found in slot 0
   [13:13:24]  Proof:         0000005050eb6717542481b28a060c5313b066748e646b46c8a6eb7a6a9dfc33
   Target: 00000063ff9c0000000000000000000000000000000000000000000000000000
   TrgVal? YES (hash <= target)
   [13:13:24] Pushing Pool 0 work to stratum queue
   [13:13:24] Discarded cloned or rolled work
   [13:13:24] Submitting share 50eb6717 to Pool 0
   [13:13:24] Successfully submitted, adding to stratum_shares db
   [13:13:24] Pool 0 stratum share submission lag time 0 seconds
   [13:13:24] Discarded work
   [13:13:24] Selecting Pool 0 for work
   [13:13:24] Generated stratum merkle eafb14d222411af3f6252d63b3419a65cf1e85ce91400ce3eb5980c18041ef5c
   [13:13:24] Generated stratum header        0000000264c5c040197088de74c52ef40b4e832464e542bd42714883000e970700000000eafb14d222411af3f6252d63b3419a65cf1e85ce91400ce3eb5980c18041ef5c53dcb9bc1b14db9a00000000000       0008000000000000000000000000000000000000000000000000000000000000000
   [13:13:24] Work job_id 82fe nonce2 58 ntime 53dcb9bc
   [13:13:24] Generated target        00000000000000000000000000000000000000000000000000009cff63000000
   [13:13:24] Generated stratum work
   [13:13:24] Pushing work from Pool 0 to hash queue
   [13:13:24] Discarded work
   [13:13:24] Selecting Pool 0 for work

Also, I do not want to waste the time of anyone. If you could provide me links where I can read about this events and how the sgminer is working I will be grateful.