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PMC.HASWELLUC(3)       FreeBSD Library Functions Manual       PMC.HASWELLUC(3)

NAME
     pmc.haswelluc - uncore measurement events for Intel Haswell family CPUs

LIBRARY
     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS
     #include <pmc.h>

DESCRIPTION
     Intel Haswell CPUs contain PMCs conforming to version 3 of the Intel
     performance measurement architecture.  These CPUs contain two classes of
     PMCs:

     PMC_CLASS_UCF     Fixed-function counters that count only one hardware
                       event per counter.

     PMC_CLASS_UCP     Programmable counters that may be configured to count
                       one of a defined set of hardware events.

     The number of PMCs available in each class and their widths need to be
     determined at run time by calling pmc_cpuinfo(3).

     Intel Haswell PMCs are documented in Combined Volumes: 1, 2A, 2B, 2C, 3A,
     3B and 3C, Intel(R) 64 and IA-32 Architectures Software Developers
     Manual, Order Number: 325462-045US, Intel Corporation, January 2013.

   HASWELL UNCORE FIXED FUNCTION PMCS
     These PMCs and their supported events are documented in pmc.ucf(3).  Not
     all CPUs in this family implement fixed-function counters.

   HASWELL UNCORE PROGRAMMABLE PMCS
     The programmable PMCs support the following capabilities:

     Capability           Support
     PMC_CAP_CASCADE      No
     PMC_CAP_EDGE         Yes
     PMC_CAP_INTERRUPT    No
     PMC_CAP_INVERT       Yes
     PMC_CAP_READ         Yes
     PMC_CAP_PRECISE      No
     PMC_CAP_SYSTEM       No
     PMC_CAP_TAGGING      No
     PMC_CAP_THRESHOLD    Yes
     PMC_CAP_USER         No
     PMC_CAP_WRITE        Yes

   Event Qualifiers
     Event specifiers for these PMCs support the following common qualifiers:

     cmask=value
             Configure the PMC to increment only if the number of configured
             events measured in a cycle is greater than or equal to value.

     edge    Configure the PMC to count the number of de-asserted to asserted
             transitions of the conditions expressed by the other qualifiers.
             If specified, the counter will increment only once whenever a
             condition becomes true, irrespective of the number of clocks
             during which the condition remains true.

     inv     Invert the sense of comparison when the ``cmask'' qualifier is
             present, making the counter increment when the number of events
             per cycle is less than the value specified by the ``cmask''
             qualifier.

   Event Specifiers (Programmable PMCs)
     Haswell programmable PMCs support the following events:

     UNC_CBO_XSNP_RESPONSE.MISS
             (Event 22H, Umask 01H) A snoop misses in some processor core.

     UNC_CBO_XSNP_RESPONSE.INVAL
             (Event 22H, Umask 02H) A snoop invalidates a non-modified line in
             some processor core.

     UNC_CBO_XSNP_RESPONSE.HIT
             (Event 22H, Umask 04H) A snoop hits a non-modified line in some
             processor core.

     UNC_CBO_XSNP_RESPONSE.HITM
             (Event 22H, Umask 08H) A snoop hits a modified line in some
             processor core.

     UNC_CBO_XSNP_RESPONSE.INVAL_M
             (Event 22H, Umask 10H) A snoop invalidates a modified line in
             some processor core.

     UNC_CBO_XSNP_RESPONSE.EXTERNAL_FILTER
             (Event 22H, Umask 20H) Filter on cross-core snoops initiated by
             this Cbox due to external snoop request.

     UNC_CBO_XSNP_RESPONSE.XCORE_FILTER
             (Event 22H, Umask 40H) Filter on cross-core snoops initiated by
             this Cbox due to processor core memory request.

     UNC_CBO_XSNP_RESPONSE.EVICTION_FILTER
             (Event 22H, Umask 80H) Filter on cross-core snoops initiated by
             this Cbox due to LLC eviction.

     UNC_CBO_CACHE_LOOKUP.M
             (Event 34H, Umask 01H) LLC lookup request that access cache and
             found line in M-state.

     UNC_CBO_CACHE_LOOKUP.ES
             (Event 34H, Umask 06H) LLC lookup request that access cache and
             found line in E or S state.

     UNC_CBO_CACHE_LOOKUP.I
             (Event 34H, Umask 08H) LLC lookup request that access cache and
             found line in I-state.

     UNC_CBO_CACHE_LOOKUP.READ_FILTER
             (Event 34H, Umask 10H) Filter on processor core initiated
             cacheable read requests. Must combine with at least one of 01H,
             02H, 04H, 08H.

     UNC_CBO_CACHE_LOOKUP.WRITE_FILTER
             (Event 34H, Umask 20H) Filter on processor core initiated
             cacheable write requests. Must combine with at least one of 01H,
             02H, 04H, 08H.

     UNC_CBO_CACHE_LOOKUP.EXTSNP_FILTER
             (Event 34H, Umask 40H) Filter on external snoop requests. Must
             combine with at least one of 01H, 02H, 04H, 08H.

     UNC_CBO_CACHE_LOOKUP.ANY_REQUEST_FILTER
             (Event 34H, Umask 80H) Filter on any IRQ or IPQ initiated
             requests including uncacheable, non-coherent requests. Must
             combine with at least one of 01H, 02H, 04H, 08H.

     UNC_ARB_TRK_OCCUPANCY.ALL
             (Event 80H, Umask 01H) Counts cycles weighted by the number of
             requests waiting for data returning from the memory controller.
             Accounts for coherent and non-coherent requests initiated by IA
             cores, processor graphic units, or LLC.

     UNC_ARB_TRK_REQUEST.ALL
             (Event 81H, Umask 01H) Counts the number of coherent and in-
             coherent requests initiated by IA cores, processor graphic units,
             or LLC.

     UNC_ARB_TRK_REQUEST.WRITES
             (Event 81H, Umask 20H) Counts the number of allocated write
             entries, include full, partial, and LLC evictions.

     UNC_ARB_TRK_REQUEST.EVICTIONS
             (Event 81H, Umask 80H) Counts the number of LLC evictions
             allocated.

     UNC_ARB_COH, Umask TRK_OCCUPANCY.ALL
             (Event 83H, Umask 01H) Cycles weighted by number of requests
             pending in Coherency Tracker.

     UNC_ARB_COH, Umask TRK_REQUEST.ALL
             (Event 84H, Umask 01H) Number of requests allocated in Coherency
             Tracker.

SEE ALSO
     pmc(3), pmc.atom(3), pmc.core(3), pmc.corei7(3), pmc.corei7uc(3),
     pmc.haswell(3), pmc.iaf(3), pmc.k7(3), pmc.k8(3), pmc.p4(3), pmc.p5(3),
     pmc.p6(3), pmc.sandybridge(3), pmc.sandybridgeuc(3),
     pmc.sandybridgexeon(3), pmc.soft(3), pmc.tsc(3), pmc.ucf(3),
     pmc.westmere(3), pmc.westmereuc(3), pmc_cpuinfo(3), pmclog(3), hwpmc(4)

HISTORY
     The pmc library first appeared in FreeBSD 6.0.

AUTHORS
     The Performance Counters Library (libpmc, -lpmc) library was written by
     Joseph Koshy <[email protected]>.  The support for the Haswell
     microarchitecture was added by Hiren Panchasara
     <[email protected]>.

FreeBSD 11.1-RELEASE-p4         March 22, 2013         FreeBSD 11.1-RELEASE-p4
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