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/*
* Copyright (c) 2021 Intel and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <perfmon/perfmon.h>
#include <perfmon/intel/core.h>
static u8 *
format_intel_memory_stalls (u8 *s, va_list *args)
{
perfmon_node_stats_t *ss = va_arg (*args, perfmon_node_stats_t *);
int row = va_arg (*args, int);
f64 sv = 0;
if (!ss->n_packets)
return s;
sv = ss->value[row] / ss->n_packets;
s = format (s, "%5.0f", sv);
return s;
}
static perfmon_cpu_supports_t memory_stalls_cpu_supports[] = {
{ clib_cpu_supports_avx512_bitalg, PERFMON_BUNDLE_TYPE_NODE },
};
PERFMON_REGISTER_BUNDLE (intel_core_memory_stalls) = {
.name = "memory-stalls",
.description = "cycles not retiring instructions due to memory stalls",
.source = "intel-core",
.events[0] = INTEL_CORE_E_CPU_CLK_UNHALTED_THREAD_P, /* FIXED */
.events[1] = INTEL_CORE_E_CYCLE_ACTIVITY_CYCLES_NO_EXECUTE, /*CMask: 0xFF*/
.events[2] = INTEL_CORE_E_CYCLE_ACTIVITY_STALLS_MEM_ANY, /*CMask: 0xFF*/
.events[3] = INTEL_CORE_E_CYCLE_ACTIVITY_STALLS_L1D_MISS, /*CMask: 0xF*/
.events[4] = INTEL_CORE_E_L1D_PEND_MISS_FB_FULL, /*CMask: 0xF*/
.events[5] = INTEL_CORE_E_CYCLE_ACTIVITY_STALLS_L3_MISS, /*CMask: 0xF*/
.events[6] = INTEL_CORE_E_SQ_MISC_SQ_FULL, /*CMask: 0xF*/
.n_events = 7,
.format_fn = format_intel_memory_stalls,
.cpu_supports = memory_stalls_cpu_supports,
.n_cpu_supports = ARRAY_LEN (memory_stalls_cpu_supports),
.column_headers = PERFMON_STRINGS ("Cycles/Packet", "Cycles Stall/Packet",
"Mem Stall/Packet",
"L1D Miss Stall/Packet", "FB Full/Packet",
"L3 Miss Stall/Packet", "SQ Full/Packet"),
};
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