* Stefan Ring <stefan...@gmail.com> [10.02.2016 11:41]: > Unfortunately, process priority is absolutely worthless on machines > with hyperthreading. The other day I witnessed someone using all 64 > virtual cores of gcc110 (the POWER7 machine), and it was godawfully > slow to work with. > > My rule of thumb is to leave at least one physical core free in order > to not disturb other users. So if the machine is 8x8 core (8 physical, > 8x HT -- I don't know the real topologies of these POWER machines), I > strive to use at most 7 cores.
this is interesting. till now i always invoked a build with: #!/bin/sh jobs=$( grep -sc ^'processor' /proc/cpuinfo ) jobs=$(( $( cpu_count ) + 1 )) make --jobs $jobs so should i change that to -2 ? bye, bastian _______________________________________________ Gcc-cfarm-users mailing list Gcc-cfarm-users@gna.org https://mail.gna.org/listinfo/gcc-cfarm-users
