Simplify log output

[chfast]

No description provided.

[nlukin]

Log improvements work nicely, no more lag on Celeron CPU. Thank you.
Now testing with latest CUDA runtime 8.0.61.

[chfast]

Thanks @nikita3030678 for checking it out.

[ChronoXNL]

@chfast : Latest build seemed to have solved the issues for me on 2 machines. Tested with latest build #112.

Setup: 7 x 1070, celeron 3930, 8gb mem, z270a chipset.

[ghost]

Issue still persists..

ethminer.exe -F http://dbix2.pool.sexy:7777/XXX -G
Found suitable OpenCL device [GeForce GTX 1080 Ti] with 11811160064 bytes of GPU memory
m 12:13:08|main Getting work package...
m 12:13:08|main Got work package: #3be17e8d
i 12:13:08|openclminer0 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer1 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer0 Initialising miner...
i 12:13:08|openclminer1 Initialising miner...
i 12:13:08|openclminer2 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer2 Initialising miner...
i 12:13:08|openclminer3 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer3 Initialising miner...
i 12:13:08|openclminer4 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer4 Initialising miner...
i 12:13:08|openclminer5 set work; seed: #290decd9, target: #0000000225c1
i 12:13:08|openclminer5 Initialising miner...

Any line from here on does char by char output and 100% CPU usage, rendering ethminer unusable

m 12:13:09|main Mining on PoWhash #3be17e8d : 0.00MH/s [A0+0:R0+0:F0]
Using platform: NVIDIA CUDA m 12:13:10|main M

the m lines are killing the system @chfast

Looking at the code ETHCL_LOG still uses the spin lock based approach..

[chfast]

Check #130.