Quote:
Originally Posted by RieGo
hello,
just wondering: why is multithreading limited to 10 threads? 
is it on purpose. is there a setting somewhere?
edit: nevermind. i just found the setting. seems like autodetection is not working properly. setting it manually fixes it |
"Auto-detection" is working as expected, probably. That is because auto-detection has
not been implemented to simply run as many encoder instances in parallel as there are (logical) CPU cores available. Instead, it has been optimized to run as many encoder instances in parallel as give the maximum
throughput (or, equivalently, minimize overall encoding time). Note that running too many instances in parallel can easily result in
HDD thrashing and thus slow things down considerably, as all those parallel instances also need to read their respective source file and write their respective output file. The following "cores to instances" curve has been derived experimentally, with the help of various LameXP users:
https://i.imgur.com/6XYwr03.png