View Full Version : cpu goes not to 100% when encoding
carlo_0000
10th November 2006, 03:59
i just upgrade my pc to a x2 4200
installed all drivers included cool & quite and AMD Dual-Core Optimizer.exe
but when using megui cpu is not used @ 100% why ?
http://perso.latribu.com/tribu/cpu.JPG
jdrumstik
10th November 2006, 09:28
first of all 829Mb of Memory with 35 processes? Impressive.
2nd. Try going under processes, and setting the particular thread to "High priority" It might lock up you system, but it might do exactly what you want too.
Otherwise, some programs simply don't got to 100%; could be memory, or HDD Lag. Either way.
I also remember I used to have an old Athlon 64, clocked at 2.4GHz, and my brother had a p4 at 3.0 and Mine would always max with games, while his would sit at 95% give or take. Its just slight variences. And that extra 7% isn't a huge dea.
With XviD dual Core enabled (latest beta) I can only get 62% with a Core Duo t4200 (I believe)
Sorry for babbling on forever.
DarkZell666
10th November 2006, 09:42
When many heavy processes are fighting for the CPU's attention (from the fps I would say you are encoding to x264 with a heavy avisynth script) this is just the sort of thing that happens.
I would also suspect the "cool & quiet" mechanism also has something to do with this.
Another suggestion would be that your ram isn't responsive/fast enough (and since it's being very busy I would understand that ;)).
Who knows ... but really, 7% isn't worth bothering about imho ^^
carlo_0000
11th November 2006, 05:46
first of all 829Mb of Memory with 35 processes? Impressive.
this is not Impressive megui who use the most +- 500
with my old pc it goes very higer like 1000-1200 (had olso more ram)
Another suggestion would be that your ram isn't responsive/fast enough (and since it's being very busy I would understand that ).
it can be the ram it s ddr2 533 but don't think it
megui is encoding some 1980P to x264 with 7 rdo level 2
on my old athlon 64 2800+ cpu was olways @100%
(+-0.6 fps) :(
it can be the cool & quiet or maybe olso AI tunning N.O.S
first time yesturday i started the pc, i set directly to cool & quiet + AI N.O.S 10% oc
go testing it without that tomarow
t° is very great compared to my old amd 64
only 36°c in full
end in idle fan turn to 0 rpm (31°) wow
old amd was @ 64° in full oc 140%
now it s minder warm in my room lol
jdrumstik
11th November 2006, 10:14
Lol, Im looking at your screenie, and it says "Priority Low" on the proggy. Just tune it to high and you will see you 100%
check
11th November 2006, 11:09
It's unlikely changing the priority will help - if there are spare resources they will be taken, priorities (should) only change the resource allocation when the CPU is full. That said, it's not perfect, but you won't see much difference.
I suspect the real reason is because your AVS script is very complex, and it's only being processed in one thread. Can you please post your script here?
foxyshadis
11th November 2006, 11:47
No, raising priority to high won't change anything, unless another process is causing excessive disk reads (like an antivirus), which I seriously doubt is the case. CnQ doesn't even apply until it drops below 50-60%. The problem is just that the multithreading isn't perfect; it will always use at least 100% of one core, but full 200% is a lofty goal. Yours is actually an extremely good result, do you use the multithreaded avisynth as well? Without it, I usually get 70% total utilization on normal scripts, which kind of bites.
Edit: Too slow at posting!
carlo_0000
11th November 2006, 20:42
No, raising priority to high won't change anything, unless another process is causing excessive disk reads (like an antivirus), which I seriously doubt is the case. CnQ doesn't even apply until it drops below 50-60%. The problem is just that the multithreading isn't perfect; it will always use at least 100% of one core, but full 200% is a lofty goal. Yours is actually an extremely good result, do you use the multithreaded avisynth as well? Without it, I usually get 70% total utilization on normal scripts, which kind of bites.
Edit: Too slow at posting!
no i use the standard avisynth
the avisynth script is like this: DirectShowSource("E:\Leslie.mkv",fps=25,audio=false)
TDecimate(cycleR=1)
crop( 0, 0, -18, -20)
LanczosResize(1280,720) # Lanczos (Sharp)
#denoise
ConvertToYV12()
the source is 1980*1080 dvbs2 ts
disk acces is not high
still no antivirus installed :)
it tested without cool & quiet and AI N.O.S
same results
than must be the multithreading like sayed foxyshadis :)
thanks for answer nothing wrong with my conputer than :)
vBulletin® v3.8.11, Copyright ©2000-2026, vBulletin Solutions Inc.