用了nvidia的vdpau的mplayer后的系统负载情况

[mech]

在开启compiz的情况下
如果用xv输出，xorg的占用在50%左右，mplayer的占用在10%左右。
而用了vdpau后，xorg的占用最大达到了78％，普遍在65%，mplayer的占用在4%~10%之间。
这样比较起来，还不如不用硬解了。
播放同一个影片的命令：
./mplayer -vc ffh264vdpau -vo vdpau -ao alsa SR-H264.avi 这个是带vdpau的mplayer
mplayer -vo vx -ao alsa SR-H264.avi 这个是新立德安装的mplayer
在系统监视器里看，用了硬解时，我的3核cpu其中一个是保持在100%的负荷。

nvidia的驱动版本为180.22
系统64位ubuntu
开启compiz
使用vdpau
top - 13:45:41 up 3:07, 4 users, load average: 1.09, 1.03, 0.79
Tasks: 136 total, 2 running, 133 sleeping, 0 stopped, 1 zombie
Cpu(s): 7.5%us, 24.1%sy, 0.0%ni, 68.4%id, 0.0%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 4053804k total, 1844032k used, 2209772k free, 129464k buffers
Swap: 1670720k total, 0k used, 1670720k free, 1058432k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5159 root 20 0 417m 40m 15m R 70 1.0 18:03.31 Xorg
5623 mech 20 0 829m 177m 36m S 12 4.5 10:55.54 firefox
5816 mech 20 0 300m 67m 35m S 12 1.7 5:50.95 compiz.real
12198 mech 20 0 257m 23m 14m S 4 0.6 0:01.18 mplayer
5762 mech 20 0 290m 30m 13m S 1 0.8 0:36.32 gnome-terminal
1 root 20 0 4100 908 616 S 0 0.0 0:01.06 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/0
4 root 15 -5 0 0 0 S 0 0.0 0:00.10 ksoftirqd/0
5 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/1
7 root 15 -5 0 0 0 S 0 0.0 0:00.08 ksoftirqd/1
8 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root RT -5 0 0 0 S 0 0.0 0:00.02 migration/2
10 root 15 -5 0 0 0 S 0 0.0 0:00.12 ksoftirqd/2
11 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/2
12 root 15 -5 0 0 0 S 0 0.0 0:00.06 events/0

关闭compiz
使用vdpau

top - 13:57:39 up 3:19, 4 users, load average: 0.16, 0.33, 0.53
Tasks: 134 total, 1 running, 132 sleeping, 0 stopped, 1 zombie
Cpu(s): 5.7%us, 0.5%sy, 0.0%ni, 93.6%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 4053804k total, 1786268k used, 2267536k free, 129468k buffers
Swap: 1670720k total, 0k used, 1670720k free, 1059744k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5623 mech 20 0 829m 178m 36m S 12 4.5 12:36.08 firefox
5159 root 20 0 396m 41m 16m S 2 1.0 18:32.64 Xorg
12251 mech 20 0 257m 23m 14m S 2 0.6 0:00.74 mplayer
5762 mech 20 0 290m 30m 13m S 1 0.8 0:37.71 gnome-terminal
1 root 20 0 4100 908 616 S 0 0.0 0:01.06 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/0
4 root 15 -5 0 0 0 S 0 0.0 0:00.10 ksoftirqd/0
5 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/1
7 root 15 -5 0 0 0 S 0 0.0 0:00.08 ksoftirqd/1
8 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root RT -5 0 0 0 S 0 0.0 0:00.02 migration/2
10 root 15 -5 0 0 0 S 0 0.0 0:00.12 ksoftirqd/2
11 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/2
12 root 15 -5 0 0 0 S 0 0.0 0:00.06 events/0
13 root 15 -5 0 0 0 S 0 0.0 0:00.04 events/1

关闭compiz
使用xv

top - 14:00:23 up 3:21, 4 users, load average: 0.26, 0.27, 0.46
Tasks: 134 total, 4 running, 129 sleeping, 0 stopped, 1 zombie
Cpu(s): 9.0%us, 0.3%sy, 0.0%ni, 90.5%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st
Mem: 4053804k total, 1788144k used, 2265660k free, 129468k buffers
Swap: 1670720k total, 0k used, 1670720k free, 1060952k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5623 mech 20 0 829m 178m 36m R 13 4.5 12:57.67 firefox
5159 root 20 0 397m 42m 18m S 10 1.1 18:40.02 Xorg
12255 mech 20 0 315m 25m 14m R 9 0.7 0:02.26 mplayer
5762 mech 20 0 290m 30m 13m R 1 0.8 0:39.24 gnome-terminal
1 root 20 0 4100 908 616 S 0 0.0 0:01.06 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/0
4 root 15 -5 0 0 0 S 0 0.0 0:00.10 ksoftirqd/0
5 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/0
6 root RT -5 0 0 0 S 0 0.0 0:00.00 migration/1
7 root 15 -5 0 0 0 S 0 0.0 0:00.08 ksoftirqd/1
8 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/1
9 root RT -5 0 0 0 S 0 0.0 0:00.02 migration/2
10 root 15 -5 0 0 0 S 0 0.0 0:00.14 ksoftirqd/2
11 root RT -5 0 0 0 S 0 0.0 0:00.00 watchdog/2
12 root 15 -5 0 0 0 S 0 0.0 0:00.06 events/0
13 root 15 -5 0 0 0 S 0 0.0 0:00.04 events/1

[lerosua]

and so ?

[fbsd4]

明显不正常。