What does mean "Performance Events: PEBS fmt1+, Nehalem events, Intel PMU driver." in dmesg file ?

Solution Unverified - Updated -

Issue

  • Below messages seen in the /var/log/dmesg file.
        Performance Events: PEBS fmt1+, Nehalem events, Intel PMU driver.
        ... version:                3
        ... bit width:              48
        ... generic registers:      4
        ... value mask:             0000ffffffffffff
        ... max period:             000000007fffffff
        ... fixed-purpose events:   3
        ... event mask:             000000070000000f
        ACPI: Core revision 20090903
        ftrace: converting mcount calls to 0f 1f 44 00 00
        ftrace: allocating 20276 entries in 80 pages
        Setting APIC routing to physical flat
        ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1

Environment

  • RHEL 6.0

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