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 v

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 o

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 w

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 frequ

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 frequenc

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 befor

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 linux-ke

[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 7523c4dd9923cab748dad9b79d0165e118e3d0