I'm trying to config sgminer 5.5.5 in Simplemining OS for my rigs.  It looks like it is using the commandline to pass in arguments. In SMOS the default is:

--no-submit-stale --kernel cryptonight -o stratum+tcp://cryptonight.usa.nicehash.com:3355 -u [yourwallet].$rigName -p x --rawintensity 1000 -w 8 --text-only

I would like to change the rawintensity, worksize etc to be optimized for my miners. I have two different setups, either RX 570 4G or RX580 8G.

For the RX570 4G I'm trying to pass a --rawintensity 512 --worksize 4. For the RX580 8G, I'm trying to pass --rawintensity 1152 --worksize 8.

However, when I do this, I see no change in performance. Also, when it initializes, I don't see any values changing, just shows: Initialising kernel cryptonight.cl with nfactor 10, n 1024.

It also looks like that it is getting its initialization parameters from the pool:

[21:54:08] Startup GPU initialization... Using settings from pool cryptonight.usa.nicehash.com.
[21:54:08] Startup Pool No = 0
[21:54:08] Building binary cryptonightEllesmeregw8l8.bin

Right now I'm only hashing at 480H/s on the 570 and 677H/s on the RX580. With Claymore I was getting 630H/s and 740H/s respectively.

I've also seen people change the gpu-threads to 2. Does this matter on the RX570 or RX580 cards? Should I be changing these values too?

Thanks.