Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread H. Peter Anvin
dean gaudet wrote: On Mon, 8 Jan 2007, H. Peter Anvin wrote: I *definitely* support the concept that RDPMC 0 should could CPU cycles by convention in Linux. unfortunately that'd be very limiting and annoying on core2 processors which have dedicated perf counters for clocks unhalted (actual

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread dean gaudet
On Mon, 8 Jan 2007, H. Peter Anvin wrote: > I *definitely* support the concept that RDPMC 0 should could CPU cycles by > convention in Linux. unfortunately that'd be very limiting and annoying on core2 processors which have dedicated perf counters for clocks unhalted (actual vs. nominal), but

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread Chris Friesen
Jan Engelhardt wrote: On Jan 8 2007 00:02, dean gaudet wrote: transmeta decided years before intel and amd that a constant rate tsc (unaffected by P-state) was the only sane choice. on transmeta cpus the tsc increments at the maximum cpu frequency no matter what the P-state (and no matter

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread H. Peter Anvin
Jan Engelhardt wrote: On Jan 8 2007 00:02, dean gaudet wrote: On Fri, 5 Jan 2007, Jan Engelhardt wrote: On Jan 4 2007 17:48, H. Peter Anvin wrote: [i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread Jan Engelhardt
On Jan 8 2007 00:02, dean gaudet wrote: >On Fri, 5 Jan 2007, Jan Engelhardt wrote: >> On Jan 4 2007 17:48, H. Peter Anvin wrote: >> > >> >[i386] All Transmeta CPUs have constant TSCs >> >All Transmeta CPUs ever produced have constant-rate TSCs. >> >> A TSC is ticking according to the CPU

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread dean gaudet
On Fri, 5 Jan 2007, Jan Engelhardt wrote: > > On Jan 4 2007 17:48, H. Peter Anvin wrote: > > > >[i386] All Transmeta CPUs have constant TSCs > >All Transmeta CPUs ever produced have constant-rate TSCs. > > A TSC is ticking according to the CPU frequency, is not it? transmeta decided years

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread dean gaudet
On Fri, 5 Jan 2007, Jan Engelhardt wrote: On Jan 4 2007 17:48, H. Peter Anvin wrote: [i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU frequency, is not it? transmeta decided years before intel

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread Jan Engelhardt
On Jan 8 2007 00:02, dean gaudet wrote: On Fri, 5 Jan 2007, Jan Engelhardt wrote: On Jan 4 2007 17:48, H. Peter Anvin wrote: [i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU frequency, is not it?

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread Chris Friesen
Jan Engelhardt wrote: On Jan 8 2007 00:02, dean gaudet wrote: transmeta decided years before intel and amd that a constant rate tsc (unaffected by P-state) was the only sane choice. on transmeta cpus the tsc increments at the maximum cpu frequency no matter what the P-state (and no matter

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread H. Peter Anvin
Jan Engelhardt wrote: On Jan 8 2007 00:02, dean gaudet wrote: On Fri, 5 Jan 2007, Jan Engelhardt wrote: On Jan 4 2007 17:48, H. Peter Anvin wrote: [i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread dean gaudet
On Mon, 8 Jan 2007, H. Peter Anvin wrote: I *definitely* support the concept that RDPMC 0 should could CPU cycles by convention in Linux. unfortunately that'd be very limiting and annoying on core2 processors which have dedicated perf counters for clocks unhalted (actual vs. nominal), but

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-08 Thread H. Peter Anvin
dean gaudet wrote: On Mon, 8 Jan 2007, H. Peter Anvin wrote: I *definitely* support the concept that RDPMC 0 should could CPU cycles by convention in Linux. unfortunately that'd be very limiting and annoying on core2 processors which have dedicated perf counters for clocks unhalted (actual

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-05 Thread Jan Engelhardt
On Jan 4 2007 17:48, H. Peter Anvin wrote: > >[i386] All Transmeta CPUs have constant TSCs >All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU frequency, is not it? -`J' -- - To unsubscribe from this list: send the line "unsubscribe

Re: [PATCH] All Transmeta CPUs have constant TSCs

2007-01-05 Thread Jan Engelhardt
On Jan 4 2007 17:48, H. Peter Anvin wrote: [i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. A TSC is ticking according to the CPU frequency, is not it? -`J' -- - To unsubscribe from this list: send the line unsubscribe

[PATCH] All Transmeta CPUs have constant TSCs

2007-01-04 Thread H. Peter Anvin
[i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. Signed-off-by: H. Peter Anvin <[EMAIL PROTECTED]> --- commit 07e54489ef8a3341b20ae42b53b1254a68061204 tree 204fa19fe2b2dd3ddb1add83ec66ccda7360f4e6 parent

[PATCH] All Transmeta CPUs have constant TSCs

2007-01-04 Thread H. Peter Anvin
[i386] All Transmeta CPUs have constant TSCs All Transmeta CPUs ever produced have constant-rate TSCs. Signed-off-by: H. Peter Anvin [EMAIL PROTECTED] --- commit 07e54489ef8a3341b20ae42b53b1254a68061204 tree 204fa19fe2b2dd3ddb1add83ec66ccda7360f4e6 parent