I was testing Ilia's patches for ddx, and while they definitely helped for Xorg itself,
qemu still eats a lot of CPU if launched like this
qemu-system-x86_64 -cdrom ~/Downloads/ISO/slax-English-US-7.0.8-x86_64.iso -m 1G -display sdl,gl=on -enable-kvm
and left for few hours.
top - 07:38:01 up 18:05, 2 users, load average: 2,00, 1,89, 1,83
Tasks: 224 total, 3 running, 221 sleeping, 0 stopped, 0 zombie
%Cpu(s): 40,6 us, 6,1 sy, 0,3 ni, 49,2 id, 0,8 wa, 0,0 hi, 2,9 si, 0,0 st
MiB Mem : 11875,3 total, 3535,7 free, 3339,3 used, 5000,3 buff/cache
MiB Swap: 1145,0 total, 1131,2 free, 13,8 used. 4874,7 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6215 guest 20 0 1455160 951768 45560 R 99,3 7,8 710:44.44 qemu-system-x86
12655 guest 20 0 2459848 1,5g 126708 R 59,1 12,6 217:53.21 seamonkey
1991 root 20 0 178112 109500 28840 S 20,9 0,9 187:20.05 Xorg
2068 guest 20 0 104932 51660 30764 S 5,6 0,4 54:08.99 ktorrent
6031 root 20 0 0 0 0 I 2,0 0,0 0:20.24 kworker/0:3-events
3697 guest 20 0 382432 20308 13696 S 1,7 0,2 91:38.13 xmms
2064 guest 20 0 55868 37048 23976 S 1,3 0,3 2:38.47 konsole
2319 guest 20 0 40160 21248 18548 S 1,3 0,2 12:36.63 gkrellm
5853 root 20 0 0 0 0 I 0,7 0,0 0:07.21 kworker/2:2-events
opreport after operf --pid 6215 said:
opreport
Using /home/guest/botva/src/xf86-video-nouveau/oprofile_data/samples/ for samples directory.
CPU: AMD64 family15h, speed 3800 MHz (estimated)
Counted CPU_CLK_UNHALTED events (CPU Clocks not Halted) with a unit mask of 0x00 (No unit mask) count 100000
CPU_CLK_UNHALT...|
samples| %|
------------------
260163 100.000 qemu-system-x86_64
CPU_CLK_UNHALT...|
samples| %|
------------------
144120 55.3960 nouveau_dri.so
87990 33.8211 libdrm_nouveau.so.2.0.0
11783 4.5291 libpixman-1.so.0.38.0
7884 3.0304 kallsyms
5310 2.0410 libc-2.30.so
689 0.2648 ld-2.30.so
519 0.1995 nouveau
501 0.1926 qemu-system-x86_64
456 0.1753 ttm
239 0.0919 kvm
211 0.0811 kvm_amd
81 0.0311 libpthread-2.30.so
76 0.0292 drm
49 0.0188 libSDL2-2.0.so.0.12.0
43 0.0165 libxcb.so.1.1.0
36 0.0138 libGL.so.1.2.0
31 0.0119 libX11.so.6.3.0
24 0.0092 snd_pcm
23 0.0088 snd_hda_codec
20 0.0077 libglib-2.0.so.0.5800.1
11 0.0042 snd_timer
9 0.0035 libglapi.so.0.0.0
8 0.0031 libdrm.so.2.4.0
7 0.0027 snd_aloop
7 0.0027 snd_hda_intel
7 0.0027 libxshmfence.so.1.0.0
7 0.0027 libgcc_s.so.1
5 0.0019 [vdso] (tgid:6215 range:0xf7f9f000-0xf7f9ffff)
5 0.0019 snd_hda_core
4 0.0015 r8169
3 0.0012 libahci
2 7.7e-04 ohci_hcd
2 7.7e-04 libxcb-present.so.0.0.0
1 3.8e-04 libatomic.so.1.1.0
so, may be similar fix needed for mesa, too?
ow, I started it in ddx src directory :} need to cleanup there. But at least data is 100
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