ESP-8266 improved performance (#1580 continuation)

[matteocrippa]

I was reading #1580 and I gave a try to improve performances for the ESP8266, the idea come from using an internal (dogecoin inspired) sha1 algorithm and a bit of loop unrolling, plus including the findings of #1580 that looked very promising.

So far a D1 Mini managed to reach up to 65 kH/s.

The issue is that the RIG is not listed in the miners, I guess due to the difficulty dance and checks.

I was wondering if @revoxhere you can introduce a new START_DIFF value with a different naming (eg. "ESP8266NHV2"? ) with around 5000k of difficulty, so far seems the most promising according the logs below.

🚨 🚨 🚨 One note, don't use this code till the change in difficulty is in place or mining will not be counted.

Fetching mining node from the poolpicker in 1s
Poolpicker selected the best mining node: coffee-pool-1


Connecting to the Duino-Coin server...
Connected to the server. Server version: 3.0

Asking for a new job for user: xxxxx
Received job with size of e4081fe83cf7e174a5082c0c599e298e94e42465,6ab359908751470a4f06e109a7ad75dd37c4449b,3000
Parsed job: e4081fe83cf7e174a5082c0c599e298e94e42465 6ab359908751470a4f06e109a7ad75dd37c4449b 300001
BAD,Too low starting difficulty share #1 (84077) hashrate: 65.07 kH/s (1.29s)

Asking for a new job for user: xxxxx
Received job with size of 7aa2cfdaf20056064e4fec2fdc52e1f05f694d0d,2f7085634016315137f98d74f06ddba14a4cf220,1300
Parsed job: 7aa2cfdaf20056064e4fec2fdc52e1f05f694d0d 2f7085634016315137f98d74f06ddba14a4cf220 130001
BAD,Too low starting difficulty share #2 (6158) hashrate: 65.92 kH/s (0.09s)

Asking for a new job for user: xxxxx
Received job with size of d0c5b275aae878495cc87dd9c3914597669bcec3,128fe86a677b308d069134abe70ba51e39489178,49848
Parsed job: d0c5b275aae878495cc87dd9c3914597669bcec3 128fe86a677b308d069134abe70ba51e39489178 4984801
GOOD share #3 (933619) hashrate: 65.51 kH/s (14.25s)

Asking for a new job for user: xxxxx
Received job with size of a9083c1e0876c3fdc0f6a17bc585a6d1eeeb019e,8c2f32a506c917c67b2fd75323238829a83f3e26,14365
Parsed job: a9083c1e0876c3fdc0f6a17bc585a6d1eeeb019e 8c2f32a506c917c67b2fd75323238829a83f3e26 1436501
GOOD share #4 (1175715) hashrate: 65.60 kH/s (17.92s)

Asking for a new job for user: xxxxx
Received job with size of 177c5ae9b0a1f9cf4b8d8013522ac6869c26766a,9c9d52cc4d4939aa0dedd9eba84de8571b23b65a,5190
Parsed job: 177c5ae9b0a1f9cf4b8d8013522ac6869c26766a 9c9d52cc4d4939aa0dedd9eba84de8571b23b65a 519001
GOOD share #5 (420963) hashrate: 65.55 kH/s (6.42s)

Asking for a new job for user: xxxxx
Received job with size of 727d14d1a5be989ece2ac05ad0d34e161bb50468,ccaab86f8ea69736dab3615ea60aa8363d2af62f,33935
Parsed job: 727d14d1a5be989ece2ac05ad0d34e161bb50468 ccaab86f8ea69736dab3615ea60aa8363d2af62f 3393501
GOOD share #6 (2233081) hashrate: 65.48 kH/s (34.10s)

Asking for a new job for user: xxxxx
Received job with size of 23d33e944efb435dff32632378339ff696732aee,656565e81d016d2d5eca2a4fc980e7018cefd5a4,6597
Parsed job: 23d33e944efb435dff32632378339ff696732aee 656565e81d016d2d5eca2a4fc980e7018cefd5a4 659701
GOOD share #7 (636619) hashrate: 65.56 kH/s (9.71s)

Asking for a new job for user: xxxxx
Received job with size of a4e408f522354402d1d3ecae6d2cbb61059e206e,f50a4d8bcca28bbd4e04a3e05ab3053f9875fd3e,25000
Parsed job: a4e408f522354402d1d3ecae6d2cbb61059e206e f50a4d8bcca28bbd4e04a3e05ab3053f9875fd3e 2500001
GOOD share #8 (347088) hashrate: 65.54 kH/s (5.30s)

Asking for a new job for user: xxxxx
Received job with size of 2af696089894f358b15d16b4d3693f51c5f5f8a9,3f0673c132019de5da824a6c0563a9d2a418385f,36752
Parsed job: 2af696089894f358b15d16b4d3693f51c5f5f8a9 3f0673c132019de5da824a6c0563a9d2a418385f 3675201
GOOD share #9 (86411) hashrate: 65.33 kH/s (1.32s)

Asking for a new job for user: xxxxx
Received job with size of c2d073e5ba1da8084f67b616e14dc223f40774fd,ea9d1aa249929c7b385821cb1bf8d1cc32e255e2,46682
Parsed job: c2d073e5ba1da8084f67b616e14dc223f40774fd ea9d1aa249929c7b385821cb1bf8d1cc32e255e2 4668201

[revoxhere]

Thanks for your work. Please try ESP8266H, I've made the necessary changes and tested this on my board.

[matteocrippa]

@revoxhere I can see now the miner listed properly, but I see the hashrate has a warning

[matteocrippa]

I think now is working fine @revoxhere

Probably we will need to consider something similar for ESP32, an ESP32H any soon

[revoxhere]

@matteocrippa what's the current status of ESP32 performance? I've been off for about a month or so and I've fallen out of rhytm. If there is any work being done for 32 too then I'm happy to change the difficulty tiers before drafting a new release.

[matteocrippa]

@revoxhere I think we need to tweak a bit ESP8266 first, I see we can make it work up to 65 kH/s so I guess you will need to refine a bit the values.
Then I have a local branch where I merged ESP8266 and ESP32 (with support for WROOM, S3, C3, S2) but needs more testing and debugging. Also I skip, by purpose, any spport for MQTT and Webserver there, so it's a huge refactor.
Plan is: let's address this PR first than we work on the other, sounds like a plan?

[revoxhere]

The ESP8266H ("old" difficulty) has been updated and it should be good to go up to around 75kh/s although I'm not sure where I left off and if the pools already have the change to respect this change. Later I'll try to find my ESP8266 board to check it myself.
ESP32 difficulty updated to 37kh/s (per core).

[revoxhere]

Added in 98cb6bf