Comment 39 for bug 16873

My Xorg process get full CPU usage with DRI.

joel@venus:~/tmpCLTXyI$ w
 23:17:21 up 16 min, 1 user, load average: 1,01, 0,79, 0,38
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
joel pts/0 192.168.0.11 23:05 0.00s 5.07s 0.12s w
joel@venus:~/tmpCLTXyI$

This is the system iddle.

top - 23:18:07 up 17 min, 1 user, load average: 1.00, 0.82, 0.40
Tasks: 78 total, 2 running, 76 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.4% us, 23.9% sy, 0.0% ni, 75.2% id, 0.5% wa, 0.0% hi, 0.0% si
Mem: 2075672k total, 150028k used, 1925644k free, 2788k buffers
Swap: 1004052k total, 0k used, 1004052k free, 74868k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

 4653 root 25 0 37632 5204 3196 R 93.8 0.3 7:40.19 Xorg

 4769 joel 15 0 2196 1020 768 R 8.5 0.0 0:00.32 top

    1 root 16 0 1924 648 556 S 0.0 0.0 0:00.48 init

    2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0

    3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0

    4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/1

    5 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1