I've made a Linux script to implement Sweet Spot block targetting,
since the buldozers come, f**k up the block reward and go.
In the last few days there was spikes of the Network hashrate as high of 120 Mh/s,
so there is no point of mining at full speed, when the Network is so far away from ideal speed for ~50 XMG per block.
Here is the code of
xmg-sweet.sh that I've been testing for a week now on two of my Ubuntu miners:
#!/bin/bash
#
# Sweet Spot block targeting script v0.1
#
### USER DEFINED BLOCK VALUES
# Text file to store max cpu threads
threadsfile=/home/urban/sweet-spot/cpuid.txt
# XMG block value to triger full speed mining
trgtfull=8
# XMG block value to triger mining at 50%
trgthalf=6
###
echo -e "\nPress [CTRL+C] to stop Sweet Spot block targetting...\n"
# INFINITE LOOP #
while :
do
if [ -f $threadsfile ]; then
cpus=$(<$threadsfile)
else
grep -c processor /proc/cpuinfo > "$threadsfile"
cpus=$(<$threadsfile)
fi
maxuse=$((cpus*100))
avrguse=$((maxuse/2))
minuse=$((maxuse/5))
minerpid=$(pidof minerd)
netblock=$(curl -s -k --retry 3 --retry-delay 30 --retry-max-time 15 http://multipools.info/xmg-block-net-info.txt)
net=$(echo $netblock | cut -d "|" -f 1)
bvalue=$(echo $netblock | cut -d "|" -f 2)
echo " ---------------------------------------------------------"
echo -e " | Current Block reward: \e[1;32m$bvalue\e[39;0m XMG. Network speed: \e[1;32m$net\e[39;0m Mh/s."
if [ $(perl -e "($bvalue >= $trgtfull) ? print 1 : print 0") -eq 1 ]; then
echo " | Switching to Full Speed mining at 100%!"
echo " ---------------------------------------------------------"
# kill cpulimit => full speed
killall -9 cpulimit
elif [ $(perl -e "($bvalue >= $trgthalf) ? print 1 : print 0") -eq 1 ]; then
echo " | Switching to Power Efficient mining at 50%!"
echo " ---------------------------------------------------------"
# cpulimit @ 50% cpu
killall -9 cpulimit
cpulimit -p $minerpid -b -z -l $avrguse
else
echo " | Switching to Power Efficient mining at 20%!"
echo " ---------------------------------------------------------"
# cpulimit @ 20% cpu
killall -9 cpulimit
cpulimit -p $minerpid -b -z -l $minuse
fi
sleep 1m
done
The values defining at which block value the miner will go full speed is
trgtfull=8 and
trgthalf=6 for 50% restricted mining.
In order to work the script needs
cpulimit.
You can install it in Ubuntu:
sudo apt-get update && sudo apt-get install -y cpulimit
I've made an folder, inside of my home dir called
sweet-spot and created there the
xmg-sweet.shby pasting the contents in a newly created file
Then I've made the script executable
To run it continuously, I've started the script in separate screen so now I can monitor miner's screen and sweet-spot screen when I needed.
screen -dmS sweet ~/sweet-spot/xmg-sweet.sh
To restore the sweet-spot screen use
Any comments and ideas are welcomed.
Thank you th3.r00t. Nice to see so much activity for Magi. I'am very proud of our Magical Magi community! Working together on the future will make Magi very strong!
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Seems it is stuck somehow or is it just my With Glasses powered view wich fails 
and ofcourse Donating even if its just dust with my kinda Weak cpu (Compared to all the others xD)
