Qemu-system-x86_64 takes 100% CPU on the host machine

Hi,

On running few I/Os the qemu-system-x86_64 takes 100% CPU on the host machine.
#top
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2583 libvirt+ 20 0 10.841g 2.505g 8972 S 100.3 4.0 1008:27 qemu-system-x86

Please let me know if there is any version of qemu-system-x86_64 has this fix. Please help.