Fps Drops
Low cpu usage Windows, Linux the same
#1
Posted 09 August 2012 - 09:51 AM
I want to report low fps and drops on maps like, Turnpike, Casa, Uptown, where normally this problem do not occur on ioUrbanTerror (4.1.1.) client. The test was done even without players connected on map and on lowest resolution and lowest settings possible.
What I've found was simple. First I was angry about this mess, but for a while when I've found some hope I've notice simple thing, about this problem. This is what I've done:
1.I've installed newest drivers to find out if this problem occur only on oldest.
2.I've compared old client vs the new one, by putting old ioUrbanTerror client (4.1.1.) to fresh downloaded Urt4.2 and ran it (of course there was info about no possibility to auth). I simply wanted to know if this problem is not about new maps and maybe some bugs on them.
3.I've putted Htop on my left monitor to monitor cpu usage and on the right one I've ran Quake3-UrT client, then after that, ioUrbanTerror client and compared them.
IoUrbanTerror (4.1.1.) client worked very well and has no issues, but simply worked on all maps with steady 125-126 fps, and Htop showed 100 percent of cpu usage on both cores (I have C2D processor)
Quake3-UrT on the other hand, has almost, on every map fps drops and Htop showed ~50 percent cpu usage all the time.
So, this is a major bug worth repairing, cause I never saw if any Quake3 or Quake2 or similar clients to ID Software engine has less than 100 percent cpu usage.
I've also noticed, that this is not only my problem (I have C2D 2GHz, 2GB ram ddr3, Radeon HD 3470), I've heard reports from guys who has better processor than me and GPU like GF 450 GTS and they were asking me what to do with fps drops.
#2
Posted 09 August 2012 - 10:14 AM
My Frames go all the way from 30 to sometimes 110, but my equipment is around 6 years old and used heavily, so time for new hardware.
Urban Terror is not Dualcore capable, atleast in my knowledge, means you are just using 2ghz.
I don't know how it could use your 2 cores with 100%
Are you using the 64-bit executable? (as I am assuming you're on a 64-bit linux distro and c2d should support 64-bit).
Have you installed the pae kernel?
For your Windows things: are/were you on 64-bit ?
Which Client were you using? Mitsubishi's Bumpy Client? Stock Client? 32 or 64-bit?
For HTOP: 50% on every core or just one core or in general?
50% in general could mean just 1 core used, 50% of one core would be buggy, !maybe! giving the process another prio could help.
experiment a bit, you can even play smoothly with 60 fps stable (as most monitors can't display more than that.)
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#3
Posted 09 August 2012 - 03:53 PM
v3nd3tta, on 09 August 2012 - 10:14 AM, said:
For your Windows things: are/were you on 64-bit ?
Lets simplify all of this:
-I play with Urt4.1.1 on Debian Squeeze 32 bit, on ioUrbanTerror.i386 origynal client, so its not bumpy.
-I play with Urt4.2 on Quake3-UrT.i386 client, so its 32 bit, and its latest 4.2 beta client, so its not bumpy.
-I have Debian Squeeze 32 bit, and have fps drops on Quake3-Urt.i386 client (4.2 beta current version) but on ioUrbanTerror.i386 (4.1.1 version) I do not, even with the same maps from 4.2 beta version (when I put ioUrbanTerror.i386 file and run it form Urt4.2 catalog)
-I do not have fps drops with original 32 bit client on Urt4.1.1 version from Urt4.1.1 catalog either!
NOW:
-On the Quake3-UrT.i386 original 32 bit beta latest client, meaning 4.2 version (running from Urt4.2 catalog) I have fps drops on all maps and Htop showing ~50 percent on core 1 and ~50 percent on core 2.
-On the ioUrbanTerror.i386 original 32 bit verion (4.1.1 client) I do not have fps drops on the original maps in version 4.1.1 (running from Urt4.1.1 catalog) and Htop showing 100 percent cpu usage on core 1 and 100 percent usage on core 2, and when I put this same client (only client) to 4.2 catalog and I run it, I do not experiencing fps drops as well! Htop is showing 100 percent cpu usage on core 1 and core 2 as well.
Is this clear or I should post some pictures, and I maybe will...
Urt4.2 beta (current) with original Quake3-UrT.i386 client (32 bit)
Htop showing ~50 percent cpu usage on core 1 and ~50 percent cpu usage on core 2.
Even with simple maps like Turnpike:
Urt4.2 beta (current) with older ioUrbanTerror.i386 client (32 bit). Htop showing 100 percent cpu usage on core 1 and 100 percent cpu usage on core 2:
And on Turnpike:
This post has been edited by zup100: 09 August 2012 - 04:46 PM
#4
Posted 09 August 2012 - 04:56 PM
My tests was not only on Linux, because this problem occurs in similar way on Windows as well, so its not my imagination.
#5
Posted 09 August 2012 - 05:42 PM
#6
Posted 09 August 2012 - 10:28 PM
I realize this doesn't help you, but it's not a very clear bug. If you have any idea to what it might be related, that would help. Perhaps a coder on the team can figure it out, but this problem has been present for years.
#8
Posted 10 August 2012 - 02:46 AM
Decided to upgrade to a new computer and my FPS was tanked with a best of about 90.
To make matters worst some games were crashing with some kind of driver time out problem .
Rolled back to an older and stable driver, made a few adjustments under the control panel and after trying a few different settings my games no longer crashed and my frame rates in UrT 4.2 was back up to 125-126.
#9
Posted 10 August 2012 - 05:26 AM
I'll try to test this issue on older machine with GF 6600GT and Celeron 3,66 GHz DDr1 and see what happens.
Clearly for me on Linux systems I have never experienced any Quake2 or Quake3 or hybrid mine original clients to have less than 100 percent cpu usage, never! That said, I think it is a good explanation to my fps on Linux being always more than fps on Windows (I've done many timedemo tests and not only), but I've never experienced fps drops either on Windows and Linux, so this is my first time, but not always the first times are the best...
#10
Posted 27 April 2013 - 06:49 PM
There are the screenshots:
Urt 4.2.012
Map Riders
Urt 4.2.012
Map Turnpike
This post has been edited by zup100: 27 April 2013 - 06:58 PM