The AP in linux NVIDIA has a high CPU usage. I wondered if this would help:

https://bitcointalk.org/index.php?topic=181328.0

I downloaded and compiled and put it in my boinc startup script like this:


...
daemon --check $BOINCEXE --user $BOINCUSER +10 "LD_PRELOAD=/YOURDIRECTORYWHATEVER/libsleep.so $B\
OINCEXE $BOINCOPTS --dir $BOINCDIR >>$LOGFILE 2>>$ERRORLOG &" >& /dev/null
... (do not put in to seti dir since it is removed automagically)

Now I can tell, after 3 completed AP units, that my first impression is quite positive. I'll be back when I have completed more AP units. Especially more of them at a time over extended periods.

What I believe in my little brain is that the NVIDIA drivers "yield()" is replaced by usleep(1000) and the AP process is put to a operating system queue at an appropriate position to be run after the specified time interval. Other processes are free to go. Yield() would just check if there are any higher priority processes to go.

LD_PRELOAD is introduced at boinc startup. It is inherited to child processes environments and finally to the AP executable too.

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To overcome Heisenbergs:
"You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones

(replying to myself)
MB CPU time UP 100 seconds. AP runtime one at a time not affected.

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To overcome Heisenbergs:
"You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones