Re: [LAD] Real-time plotting of audio/ oscilloscope.

Ralf Mardorf wrote:
> Jeremy wrote:
>>
>>
>> On Thu, Jun 17, 2010 at 2:25 AM, Ralf Mardorf
>> <ralf.mardorf@email-addr-hidden-dsl.net <mailto:ralf.mardorf@email-addr-hidden-dsl.net>> wrote:
>>
>> Jeremy wrote:
>>
>> Is there a fundamental restriction on doing so, or is my
>> problem in software?
>>
>> Jeremy
>>
>>
>> Hardware ;)!
>>
>> We should start a black- and whitelist for hardware used for Linux
>> real-time. Unfortunately I could add my two machines to the
>> blacklist :(.
>>
>>
>>
>> Which hardware is "bad"? The cpu? The video chip? The motherboard?
>>
>> Jeremy
>
> Dunno. I could post $ hwinfo > hwinfo.txt for a combination of
> hardware that will cause MIDI jitter when controlling external MIDI
> equipment.
>
> My mobo is a M2A-VM HDMI with an onboard graphics 'ATI Radeon
> X1250-based'. Currently I'm using this mobo with a 'NVIDIA GeForce
> 7200 GS'. Jitter and jitter free moments did shift a little bit when
> changing the graphics. I guess it's minimal better when using the
> integrated graphics, but the NVIDIA, anyway, I prefer the NVIDIA,
> because I'm now able to do 3D stuff.
>
> My CPU is a
>
> spinymouse-sudo@email-addr-hidden:~$ hwinfo --cpu
> 01: None 00.0: 10103 CPU
> [Created at cpu.304]
> Unique ID: rdCR.j8NaKXDZtZ6
> Hardware Class: cpu
> Arch: X86-64
> Vendor: "AuthenticAMD"
> Model: 15.107.2 "AMD Athlon(tm) X2 Dual Core Processor BE-2350"
> Features:
> fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,mmx,fxsr,sse,sse2,ht,syscall,nx,mmxext,fxsr_opt,rdtscp,lm,3dnowext,3dnow,rep_good,extd_apicid,pni,cx16,lahf_lm,cmp_legacy,svm,extapic,cr8_legacy,3dnowprefetch
>
> Clock: 1000 MHz
> BogoMips: 2000.04
> Cache: 512 kb
> Units/Processor: 2
> Config Status: cfg=new, avail=yes, need=no, active=unknown
>
> 02: None 01.0: 10103 CPU
> [Created at cpu.304]
> Unique ID: wkFv.j8NaKXDZtZ6
> Hardware Class: cpu
> Arch: X86-64
> Vendor: "AuthenticAMD"
> Model: 15.107.2 "AMD Athlon(tm) X2 Dual Core Processor BE-2350"
> Features:
> fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,mmx,fxsr,sse,sse2,ht,syscall,nx,mmxext,fxsr_opt,rdtscp,lm,3dnowext,3dnow,rep_good,extd_apicid,pni,cx16,lahf_lm,cmp_legacy,svm,extapic,cr8_legacy,3dnowprefetch
>
> Clock: 1000 MHz
> BogoMips: 2000.04
> Cache: 512 kb
> Units/Processor: 2
> Config Status: cfg=new, avail=yes, need=no, active=unknown
> spinymouse-sudo@email-addr-hidden:~$
>
> My other machine currently is dismantled. The mobo is an ASRock K7VT2
> and the CPU is an 32-bit 800 MHz AMD Athlon + NVIDIA GeForce Blabla 440.

Correction, frequency scaling was ondemand, I changed to performance now:

spinymouse-sudo@email-addr-hidden:~$ hwinfo --cpu
[snip]
  Clock: 2100 MHz
[snip]
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Received on Thu Jun 17 12:15:04 2010