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commit afa8700ce726153fa1547ce118f7f9b029e675c9
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Author: Stephane Eranian <eranian@gmail.com>
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Date: Wed Jan 16 13:23:11 2019 -0800
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clarify description of AMD Fam17h MERGE event
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This is a special event used when merging two counters together.
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It needs to be programmed on the od-numbered performance counter.
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Signed-off-by: Stephane Eranian <eranian@gmail.com>
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diff --git a/lib/events/amd64_events_fam17h.h b/lib/events/amd64_events_fam17h.h
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index 4f865b9..b0db898 100644
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--- a/lib/events/amd64_events_fam17h.h
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+++ b/lib/events/amd64_events_fam17h.h
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@@ -954,7 +954,7 @@ static const amd64_entry_t amd64_fam17h_pe[]={
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.umasks = amd64_fam17h_tablewalker_allocation,
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},
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{ .name = "MERGE",
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- .desc = "See <xref file='svd_core_pmc' title='Large Increment per Cycle Events' format='name'>.",
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+ .desc = "Merge two counters together. This event must be programmed on the odd performance counter",
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.modmsk = AMD64_FAM17H_ATTRS,
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.code = 0xfff,
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.flags = 0,
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commit ac95d1957771d527f7bf8d11a97fb10ee223d6c0
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Author: Stephane Eranian <eranian@gmail.com>
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Date: Thu Mar 14 15:19:13 2019 -0700
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remove MERGE event from AMD Fam17h table
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The MERGE event is not measuring an actual micro-architectural event. Instead
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it is used to fuse two consecutive counters together to get a wider counter.
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This should be used cautiously and is not currently compatible with Linux
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perf_events interface and implementation.
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Signed-off-by: Stephane Eranian <eranian@gmail.com>
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diff --git a/lib/events/amd64_events_fam17h.h b/lib/events/amd64_events_fam17h.h
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index b0db898..deadbed 100644
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--- a/lib/events/amd64_events_fam17h.h
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+++ b/lib/events/amd64_events_fam17h.h
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@@ -953,13 +953,6 @@ static const amd64_entry_t amd64_fam17h_pe[]={
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.numasks = LIBPFM_ARRAY_SIZE(amd64_fam17h_tablewalker_allocation),
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.umasks = amd64_fam17h_tablewalker_allocation,
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},
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- { .name = "MERGE",
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- .desc = "Merge two counters together. This event must be programmed on the odd performance counter",
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- .modmsk = AMD64_FAM17H_ATTRS,
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- .code = 0xfff,
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- .flags = 0,
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- .ngrp = 0,
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- },
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{ .name = "L1_BTB_CORRECTION",
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.desc = "TBD",
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.modmsk = AMD64_FAM17H_ATTRS,
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