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Version 2.5.4 of perfctr, the Linux/x86 performance monitoring counters driver, is now available at the usual place: http://www.csd.uu.se/~mikpe/linux/perfctr/ Version 2.5.4, 2003-06-01 - Corrected the driver's handling of OVF_PMI+FORCE_OVF counters on Pentium 4. This configuration didn't work at all, and lead to various BUG messages from the driver. These restrictions apply to OVF_PMI+FORCE_OVF counters: * The ireset value must be -1. * Once the counter has interrupted once, it will continue to interrupt when the faulting instruction is restarted, causing it to never complete. This problem also occurs for non-FORCE_OVF interrupt-mode counters if the ireset value is of too small magnitude, like -1. This appears to be a P4 hardware quirk. Don't restart FORCE_OVF interrupt-mode counters, and don't use ireset values too small to allow instructions to complete. - Updated library's K8 event descriptions to match current documentation. Corrected several omissions and errors. - Patch kit updated for kernels 2.5.70 and 2.4.21-rc6. / Mikael Pettersson - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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