Ich erinnere mich, dass das Multitasking mit kdenlive schon deutlich besser war. Was könnte da nicht passen? Ein neuer Kernel?
uname -r 3.2.0-60-generic
top - 23:30:31 up 4:21, 1 user, load average: 1.43, 1.53, 1.58 Tasks: 306 total, 1 running, 303 sleeping, 0 stopped, 2 zombie Cpu0 : 20.4%us, 1.1%sy, 0.0%ni, 78.2%id, 0.1%wa, 0.0%hi, 0.2%si, 0.0%st Cpu1 : 12.7%us, 0.3%sy, 0.0%ni, 86.8%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 : 22.4%us, 1.2%sy, 0.0%ni, 75.5%id, 0.8%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 11.3%us, 0.5%sy, 0.0%ni, 86.6%id, 1.6%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 25.9%us, 0.8%sy, 0.0%ni, 72.9%id, 0.2%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 8.7%us, 0.3%sy, 0.0%ni, 90.8%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 24.7%us, 0.8%sy, 0.0%ni, 74.2%id, 0.2%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 14.0%us, 0.3%sy, 0.0%ni, 85.5%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8135476k total, 7996892k used, 138584k free, 56400k buffers Swap: 1052668k total, 2092k used, 1050576k free, 4207328k cached