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Searched hist:"24514292 fa6e66d4ccd79de128f8bbb41cc9664e" (Results 1 – 2 of 2) sorted by relevance

/freebsd/sys/i386/i386/
H A Dmp_clock.cdiff 24514292fa6e66d4ccd79de128f8bbb41cc9664e Mon Sep 20 09:52:39 CEST 1999 Poul-Henning Kamp <phk@FreeBSD.org> On PIIX4 based SMP systems use the PMTMR register for timecounting.

It is about 2.5 microseconds or roughly 3 times faster to use this
"PIIX" timecounter than the "i8254" timecounter. Resolution is
also 3 times better.

The code cheats and don't register the PCI device, because other pieces
of code want to use it too.

Originally spotted by: msmith
24514292fa6e66d4ccd79de128f8bbb41cc9664e Mon Sep 20 09:52:39 CEST 1999 Poul-Henning Kamp <phk@FreeBSD.org> On PIIX4 based SMP systems use the PMTMR register for timecounting.

It is about 2.5 microseconds or roughly 3 times faster to use this
"PIIX" timecounter than the "i8254" timecounter. Resolution is
also 3 times better.

The code cheats and don't register the PCI device, because other pieces
of code want to use it too.

Originally spotted by: msmith
/freebsd/sys/conf/
H A Dfiles.i386diff 24514292fa6e66d4ccd79de128f8bbb41cc9664e Mon Sep 20 09:52:39 CEST 1999 Poul-Henning Kamp <phk@FreeBSD.org> On PIIX4 based SMP systems use the PMTMR register for timecounting.

It is about 2.5 microseconds or roughly 3 times faster to use this
"PIIX" timecounter than the "i8254" timecounter. Resolution is
also 3 times better.

The code cheats and don't register the PCI device, because other pieces
of code want to use it too.

Originally spotted by: msmith
diff 24514292fa6e66d4ccd79de128f8bbb41cc9664e Mon Sep 20 09:52:39 CEST 1999 Poul-Henning Kamp <phk@FreeBSD.org> On PIIX4 based SMP systems use the PMTMR register for timecounting.

It is about 2.5 microseconds or roughly 3 times faster to use this
"PIIX" timecounter than the "i8254" timecounter. Resolution is
also 3 times better.

The code cheats and don't register the PCI device, because other pieces
of code want to use it too.

Originally spotted by: msmith