Re: Matrox FB console driver
On Tue, Apr 24, 2001 at 06:19:31AM -0500, Andy Carlson wrote: > time prime before x > real1m23.535s > user0m40.550s > sys 0m42.980s > > time prime in X > real0m42.835s > user0m41.180s > sys 0m1.710s There can be two reasons: (1) You are using matrox's mga module. They have 'program chip core to production level frequency instead of bios safe one' in their changelog. Although difference 100% makes (2) more probably. (2) matroxfb does not try to activate any AGP transfer mode. Maybe some X driver tries and succeeds. You can try: time dd if=/dev/zero of=/dev/fb0 bs=1M count=8 before X and after X. If times are same, then it is chip core frequency. If times are 2:1, it is either chip memory freqency, or AGP... Petr Vandrovec [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Matrox FB console driver
On Tue, Apr 24, 2001 at 06:19:31AM -0500, Andy Carlson wrote: time prime before x real1m23.535s user0m40.550s sys 0m42.980s time prime in X real0m42.835s user0m41.180s sys 0m1.710s There can be two reasons: (1) You are using matrox's mga module. They have 'program chip core to production level frequency instead of bios safe one' in their changelog. Although difference 100% makes (2) more probably. (2) matroxfb does not try to activate any AGP transfer mode. Maybe some X driver tries and succeeds. You can try: time dd if=/dev/zero of=/dev/fb0 bs=1M count=8 before X and after X. If times are same, then it is chip core frequency. If times are 2:1, it is either chip memory freqency, or AGP... Petr Vandrovec [EMAIL PROTECTED] - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [lkml]Re: Matrox FB console driver
On Tue, Apr 24, 2001 at 06:19:31AM -0500, Andy Carlson wrote: > time prime before x > real1m23.535s > user0m40.550s > sys 0m42.980s > > /proc/mtrr before x > reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 > reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 > > time prime after x > real0m48.732s > user0m41.070s > sys 0m7.690s > > /proc/mtrr after x > reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 > reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 > > time prime in X > real0m42.835s > user0m41.180s > sys 0m1.710s > Well, it isn't that. Still, it was recently discussed that X might leave some settings in the video-card (Matrox). So I tried the following: time spdtest.sh before X with spdtest.sh: #!/bin/sh i=1 while [ $i -lt 500 ] do clear echo $i cat test.out; i=`expr $i + 1` done and after X, no change. This is a G400/32 Mb with framebuffer @ 1600x1200x16bpp, and X 4.0.3, same resolution. Kernel 2.4.3-ac12, Abit VP6 dual P3/866. There was no significant change in any of the reported times. I don't know. Your problem is interesting. Do other programs have this too? Jurriaan -- And the gosts of hope walk silent halls At the death of the promised land All is gone, all is gone But these changing winds can turn cold and hostile New Model Army GNU/Linux 2.4.3-ac12 SMP/ReiserFS 2x1743 bogomips load av: 0.00 0.03 0.01 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Matrox FB console driver
time prime before x real1m23.535s user0m40.550s sys 0m42.980s /proc/mtrr before x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime after x real0m48.732s user0m41.070s sys 0m7.690s /proc/mtrr after x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime in X real0m42.835s user0m41.180s sys 0m1.710s /proc/version Linux version 2.4.3-ac12 (root@bigandy) (gcc version 2.95.2 19991024 (release)) #15 SMP Mon Apr 23 19:35:33 CDT 2001 /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 1 model name : Pentium Pro stepping: 9 cpu MHz : 199.312 cache size : 512 KB fdiv_bug: no hlt_bug : no f00f_bug: no coma_bug: no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov bogomips: 397.31 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 1 model name : Pentium Pro stepping: 7 cpu MHz : 199.312 cache size : 512 KB fdiv_bug: no hlt_bug : no f00f_bug: no coma_bug: no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov bogomips: 398.13 Andy Carlson |\ _,,,---,,_ [EMAIL PROTECTED]ZZZzz /,`.-'`'-. ;-;;,_ BJC Health System |,4- ) )-,_. ,\ ( `'-' St. Louis, Missouri '---''(_/--' `-'\_) Cat Pics: http://andyc.dyndns.org On Mon, 23 Apr 2001, Mark Hahn wrote: > > I was playing around with a program that I was using to time differences > > between kernels (a silly prime program that puts out 100 primes). I > > noticed a very strange behaviour. On a fresh boot, with the Penguin > > pictures that the Matrox FB driver puts up, the prime program runs > > 1 minute, 30 seconds. If I reset, it still runs 1M30S. If I start X, > > and exit, it runs 48 seconds. Is this a known behaviour? Thanks. > > do you mean that running and exiting X makes your computer faster? > is /proc/mtrr sane at both times? > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Matrox FB console driver
time prime before x real1m23.535s user0m40.550s sys 0m42.980s /proc/mtrr before x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime after x real0m48.732s user0m41.070s sys 0m7.690s /proc/mtrr after x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime in X real0m42.835s user0m41.180s sys 0m1.710s /proc/version Linux version 2.4.3-ac12 (root@bigandy) (gcc version 2.95.2 19991024 (release)) #15 SMP Mon Apr 23 19:35:33 CDT 2001 /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 1 model name : Pentium Pro stepping: 9 cpu MHz : 199.312 cache size : 512 KB fdiv_bug: no hlt_bug : no f00f_bug: no coma_bug: no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov bogomips: 397.31 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 1 model name : Pentium Pro stepping: 7 cpu MHz : 199.312 cache size : 512 KB fdiv_bug: no hlt_bug : no f00f_bug: no coma_bug: no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov bogomips: 398.13 Andy Carlson |\ _,,,---,,_ [EMAIL PROTECTED]ZZZzz /,`.-'`'-. ;-;;,_ BJC Health System |,4- ) )-,_. ,\ ( `'-' St. Louis, Missouri '---''(_/--' `-'\_) Cat Pics: http://andyc.dyndns.org On Mon, 23 Apr 2001, Mark Hahn wrote: I was playing around with a program that I was using to time differences between kernels (a silly prime program that puts out 100 primes). I noticed a very strange behaviour. On a fresh boot, with the Penguin pictures that the Matrox FB driver puts up, the prime program runs 1 minute, 30 seconds. If I reset, it still runs 1M30S. If I start X, and exit, it runs 48 seconds. Is this a known behaviour? Thanks. do you mean that running and exiting X makes your computer faster? is /proc/mtrr sane at both times? - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [lkml]Re: Matrox FB console driver
On Tue, Apr 24, 2001 at 06:19:31AM -0500, Andy Carlson wrote: time prime before x real1m23.535s user0m40.550s sys 0m42.980s /proc/mtrr before x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime after x real0m48.732s user0m41.070s sys 0m7.690s /proc/mtrr after x reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xfd80 (4056MB), size= 4MB: write-combining, count=1 time prime in X real0m42.835s user0m41.180s sys 0m1.710s Well, it isn't that. Still, it was recently discussed that X might leave some settings in the video-card (Matrox). So I tried the following: time spdtest.sh before X with spdtest.sh: #!/bin/sh i=1 while [ $i -lt 500 ] do clear echo $i cat test.out; i=`expr $i + 1` done and after X, no change. This is a G400/32 Mb with framebuffer @ 1600x1200x16bpp, and X 4.0.3, same resolution. Kernel 2.4.3-ac12, Abit VP6 dual P3/866. There was no significant change in any of the reported times. I don't know. Your problem is interesting. Do other programs have this too? Jurriaan -- And the gosts of hope walk silent halls At the death of the promised land All is gone, all is gone But these changing winds can turn cold and hostile New Model Army GNU/Linux 2.4.3-ac12 SMP/ReiserFS 2x1743 bogomips load av: 0.00 0.03 0.01 - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
