Messages in this thread | | | Date | Mon, 7 Jun 1999 03:17:12 +0200 (MET DST) | From | Mikael Pettersson <> | Subject | release 0.2 of x86 performance-monitoring counters support patch |
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I've updated my x86 performance-monitoring counters patch. The current patch is against kernel 2.3.5. Summary follows:
* Version 0.2 1999-06-07 * - Added support for WinChip CPUs. * - Restart counters from zero, not their previous values. This * corrected a problem for Intel P6 (WRMSR writes 32 bits to a PERFCTR * MSR and then sign-extends to 40 bits), and also simplified the code. * - Added support for syncing the kernel's counter values to a user- * provided buffer each time a process is resumed. This feature, and * the fact that the driver enables RDPMC in processes using PMCs, * allows user-level computation of a process' accumulated counter * values without incurring the overhead of making a system call. * Version 0.1 1999-05-30 * - First public release.
The latest version of this package can be downloaded from http://www.csd.uu.se/~mikpe/linux/
/ Mikael Pettersson
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