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ocperf.py
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ocperf.py
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#!/usr/bin/env python3
# Copyright (c) 2011-2020, Intel Corporation
# Author: Andi Kleen
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# wrapper for perf for using named events and events with additional MSRs.
# syntax is like perf, except Intel events are listed and can be specified
#
# or library for other python program to convert intel event names to
# perf/raw format
#
# Features:
# - map intel events to raw perf events
# - enable disable workarounds for specific events
# - resolve uncore events
# - handle offcore event on older kernels
# For the later must run as root and only as a single instance per machine
# Normal events (mainly not OFFCORE) can be handled unprivileged
# For events you can specify additional intel names from the list
#
# env variables:
# PERF=... perf binary to use (default "perf")
# EVENTMAP=eventmap
# EVENTMAP2=eventmap
# EVENTMAP3=eventmap
# OFFCORE=eventmap
# UNCORE=eventmap
# UNCORE2=eventmap
# eventmap is a path name to a json file. can contain wildcards.
# When eventmap is not specified, look in ~/.cache/pmu-events/
# The eventmap is automatically downloaded there
# eventmap can be also a CPU identifer (GenuineIntel-FAMILY-MODEL, like GenuineIntel-06-37)
# (Note that the numbers are in upper case hex)
#
# TOPOLOGY=topologyfile
# topologyfile is a dump of the sysfs of another system (find /sys > file)
# Needed for uncore units. This is useful to generate perf command lines for other systems.
#
# OCVERBOSE=1 print which files are opened
#
# Special arguments:
# --no-period Never add a period
# --print only print
# --force-download Force event list download
# --experimental Support experimental events
# --noexplode Don't list all sub pmus for uncore events. Rely on perf stat to merge.
from __future__ import print_function
import sys
import os
import subprocess
import json
import re
import copy
import textwrap
if sys.version_info.major == 2:
from pipes import quote
else:
from shlex import quote
import itertools
import glob
from pmudef import EVENTSEL_ANY, EVENTSEL_INV, EVMASK, extra_flags, EVENTSEL_UMASK2
if sys.version_info.major == 3:
import typing # noqa
from typing import Set, List, Dict, Any, Tuple, DefaultDict # noqa
import msr as msrmod
import latego
import event_download
force_download = False
experimental = False
ocverbose = os.getenv("OCVERBOSE") is not None
exists_cache = dict() # type: Dict[str,bool]
emap_list = [] # type: List[EmapNativeJSON]
topology = None # type: None | Set[str]
def file_exists(s):
if s in exists_cache:
return exists_cache[s]
global topology
if topology is None:
top = os.getenv("TOPOLOGY")
topology = set()
if top:
try:
topology = {x.strip() for x in open(top).readlines()}
except OSError:
print("Cannot open topology", top, file=sys.stderr)
if s in topology:
return True
found = os.path.exists(s)
exists_cache[s] = found
return found
def has_format(s, pmu):
return file_exists("/sys/devices/%s/format/%s" % (pmu, s))
def has_format_any(f, pmu):
return has_format(f, pmu) or has_format(f, pmu + "_0")
cached_vals = dict()
def cached_read(fn):
if fn not in cached_vals:
try:
with open(fn) as f:
cached_vals[fn] = f.read()
except (OSError, IOError):
cached_vals[fn] = "?"
return cached_vals[fn]
warned = set()
def warn_once(s):
if s not in warned:
print(s, file=sys.stderr)
warned.add(s)
class PerfVersion(object):
def __init__(self):
minor = 0
perf = os.getenv("PERF")
if not perf:
perf = "perf"
try:
version = subprocess.Popen([perf, "--version"],
stdout=subprocess.PIPE).communicate()[0]
except OSError:
print("Cannot run", perf)
version = ""
if not isinstance(version, str):
version = version.decode('utf-8')
m = re.match(r"perf version (\d+)\.(\d+)\.", version)
version = 412 # assume that no match is new enough
if m:
major = int(m.group(1))
minor = int(m.group(2))
version = major * 100 + minor
pmu = "cpu_core" if os.path.exists("/sys/devices/cpu_core") else "cpu"
self.direct = os.getenv("DIRECT_MSR") or version < 400
self.offcore = has_format("offcore_rsp", pmu) and not self.direct
self.ldlat = has_format("ldlat", pmu) and not self.direct
self.has_name = version >= 304
self.has_uncore_expansion = version >= 412
version = PerfVersion()
class MSR(object):
def __init__(self):
self.reg = {}
def writemsr(self, msrnum, val, print_only = False):
print("msr %x = %x" % (msrnum, val, ))
if print_only:
return
msrmod.writemsr(msrnum, val)
def checked_writemsr(self, msr, val, print_only = False):
if msr in self.reg:
sys.exit("Multiple events use same register")
self.writemsr(msr, val, print_only)
self.reg[msr] = 1
qual_map = (
("amt1", "any=1", EVENTSEL_ANY, ""),
("percore", "percore=1", 0, ""),
("perf_metrics", "", 0, ""),
("i1", "inv=1", EVENTSEL_INV, ""),
("e1", "edge=1", 0, ""),
("e0", "edge=0", 0, ""),
("tx", "in_tx=1", 0, ""),
("sup", "", 0, "k"),
("usr=yes", "", 0, "u"),
("usr=no", "", 0, "k"),
("os=yes", "", 0, "k"),
("os=no", "", 0, "u"),
("anythr=yes", "any=1", 0, ""),
("anythr=no", "any=0", 0, ""),
("pdir", "", 0, "ppp"),
("precise=yes", "", 0, "pp"),
("cp", "in_tx_cp=1", 0, ""))
number = "(0x[0-9a-fA-F]+|[0-9]+)"
qualval_map = (
(r"event_select=" + number, "event=%#x", 0),
(r"u" + number, "umask=%#x", 0),
(r"c(?:mask=)?" + number, "cmask=%d", 24),
(r"e(?:dge=)?" + number, "edge=%d", 18),
(r"ocr_msr_val=" + number, "config1=%#x", 0),
(r"(?:sa|sample-after|period)=" + number, "period=%d", 0))
uncore_map = (
(r'e(\d)', 'edge='),
(r't=(\d+)', "thresh="),
(r'match=(0x[0-9a-fA-F]+)', "filter_occ="),
(r'filter1=(0x[0-9a-fA-F]+)', "config1=", 32),
(r"nc=(\d+)", "filter_nc="),
(r'filter=(0x[0-9a-fA-F]+)', "config1="),
(r'one_unit', '', ),
(r"u" + number, "umask="),
(r"opc=?" + number, "filter_opc="),
(r"tid=?" + number, "filter_tid="),
(r"state=?" + number, "filter_state="))
uncore_map_thresh = (
(r"c(?:mask=)?" + number, "thresh="),)
uncore_map_cmask = (
(r"c(?:mask=)?" + number, "cmask="),)
# newe gets modified
def convert_extra(extra, val, newe):
nextra = ""
while extra:
if extra[0] == ":":
extra = extra[1:]
continue
found = False
for j in qualval_map:
m = re.match(j[0], extra, re.I)
if m:
if j[2]:
val |= int(m.group(1), 0) << j[2]
newe.append(j[1] % (int(m.group(1), 0)))
extra = extra[len(m.group(0)):]
found = True
break
if found:
continue
found = False
for j in qual_map:
if extra.lower().startswith(j[0]):
val |= j[2]
newe.append(j[1])
extra = extra[len(j[0]):]
nextra += j[3]
found = True
break
if found:
continue
if not extra:
break
if extra[0] in perf_qual + "p":
nextra += extra[0]
extra = extra[1:]
continue
print("bad event qualifier", extra, file=sys.stderr)
break
return nextra, val
def gen_name(n, sup):
n = n.replace(".", "_").replace(":", "_").replace("=", "_")
if sup:
n += "_k"
return n
class Event(object):
def __init__(self, name, val, desc):
self.val = val
self.name = name
self.extra = ""
self.userextra = ""
self.msr = 0
self.msrval = 0
self.desc = desc
self.precise = 0
self.collectpebs = 0
self.newextra = ""
self.overflow = None
self.errata = None
self.counter = ""
self.period = 0
self.pname = None
# XXX return with pmu to be consistent with Uncore and fix callers
def output_newstyle(self, extra="", noname=False, period=False, name="", noexplode=False):
"""Format an perf event for output and return as perf event string.
Always uses new style (cpu/.../)."""
val = self.val
if extra:
extra = self.newextra + "," + extra
else:
extra = self.newextra
if self.pname:
e = self.pname
else:
e = "event=0x%x,umask=0x%x" % (val & 0xff,
((val >> 8) & 0xff) | (((val >> 40) & 0xff) << 8))
e += extra
if version.has_name:
if name:
e += ",name=" + name
elif not noname:
e += ",name=%s" % (gen_name(self.name, "sup" in (self.extra + extra)))
if period and self.period and ",period=" not in e:
e += ",period=%d" % self.period
return e
def output(self, use_raw=False, flags="", noname=False, period=False, name="", noexplode=False):
"""Format an event for output and return as perf event string.
use_raw when true return old style perf string (rXXX).
Otherwise chose between old and new style based on the
capabilities of the installed perf executable.
flags when set add perf flags (e.g. u for user, p for pebs)."""
val = self.val
newe = []
extra = "".join(sorted(merge_extra(extra_set(self.extra), extra_set(flags))))
extra, val = convert_extra(":" + extra, val, newe)
if version.direct or use_raw:
if self.pname:
ename = self.pname
else:
ename = "r%x" % (val,)
if extra:
ename += ":" + extra
# XXX should error for extras that don't fit into raw
else:
p = self.output_newstyle(extra=",".join(newe),
noname=noname, period=period, name=name)
ename = "%s/%s/" % (self.pmu, p) + extra
return ename
def filter_qual(self):
if cached_read("/sys/devices/%s/format/umask") == "config:8-15":
self.val &= ~EVENTSEL_UMASK2
def check_qual(q):
if q == "":
return True
if "=" in q:
q, _ = q.split("=")
if has_format_any(q, self.pmu):
return True
warn_once("%s: format %s not supported. Filtering out" % (self. pmu, q))
return False
self.newextra = ",".join(filter(check_qual, self.newextra.split(",")))
box_to_perf = {
"cbo": "cbox",
"qpi_ll": "qpi",
"sbo": "sbox",
}
def box_exists(box):
return file_exists("/sys/devices/uncore_%s" % (box))
def int_or_zero(row, name):
if name in row:
if row[name] == 'False':
return 0
if row[name] == 'True':
return 1
return int(row[name])
return 0
uncore_units = {
"imph-u": "arb",
"kti ll": "upi",
"m3kti": "m3upi",
"upi ll": "upi",
}
def convert_uncore(flags, extra_map):
o = ""
while flags:
for j in uncore_map + extra_map:
if flags[0] == ",":
flags = flags[1:]
match, repl = j[0], j[1]
m = re.match(match, flags, re.I)
if m:
if repl == "":
pass
elif len(j) > 2:
o += "," + repl + ("%#x" % (int(m.group(1), 0) << j[2]))
else:
o += "," + repl + m.group(1)
flags = flags[m.end():]
if flags == "":
break
if flags[0:1] == ":":
flags = flags[1:]
else:
if flags != "":
if len(extra_map) > 0:
print("Uncore cannot parse", flags, file=sys.stderr)
break
return o
class UncoreEvent(object):
def __init__(self, name, row):
self.name = name
e = self
if 'PublicDescription' in row:
e.desc = row['PublicDescription'].strip()
elif 'BriefDescription' in row:
e.desc = row['BriefDescription'].strip()
else:
e.desc = row['Description'].strip()
e.code = int(row['EventCode'], 16)
if 'Internal' in row and int(row['Internal']) != 0:
e.code |= int(row['Internal']) << 21
e.umask = int(row['UMask'], 16)
e.cmask = int_or_zero(row, 'CounterMask')
e.inv = int_or_zero(row, 'Invert')
e.edge = int_or_zero(row, 'EdgeDetect')
e.unit = row['Unit'].lower()
if e.unit in uncore_units:
e.unit = uncore_units[e.unit]
if e.unit == "ncu":
e.unit = "clock" if box_exists("clock") else "cbox"
e.umask = 0
e.code = 0xff
# xxx subctr
if e.unit in box_to_perf:
e.unit = box_to_perf[e.unit]
e.msr = None
e.overflow = 0
e.counter = "1" # dummy for toplev
e.newextra = ""
if 'Errata' in row:
e.errata = row['Errata']
else:
e.errata = None
self.extra = ''
self.userextra = ''
# {
# "Unit": "CBO",
# "EventCode": "0x22",
# "UMask": "0x21",
# "EventName": "UNC_CBO_XSNP_RESPONSE.MISS_EXTERNAL",
# "Description": "An external snoop misses in some processor core.",
# "Counter": "0,1",
# "CounterMask": "0",
# "Invert": "0",
# "EdgeDetect": "0"
# },
# XXX cannot separate sockets
# extra: perf flags
# flags: emon flags
def output_newstyle(self, newextra="", noname=False, period=False, name="", flags="", noexplode=False):
e = self
o = "/event=%#x" % e.code
if e.umask:
o += ",umask=%#x" % e.umask
if e.cmask:
o += ",cmask=%#x" % e.cmask
if e.edge:
o += ",edge=1"
if e.inv:
o += ",inv=1"
if e.newextra:
if flags:
flags += ","
flags += e.newextra
one_unit = "one_unit" in flags
if has_format_any("cmask", "uncore_" + e.unit):
extra_map = uncore_map_cmask
else:
extra_map = uncore_map_thresh
o += convert_uncore(flags, extra_map)
# xxx subctr, occ_sel, filters
if version.has_name and not noname:
if name == "":
name = gen_name(e.name, False)
o += ",name=" + name + "_NUM"
if newextra:
o += "," + ",".join(newextra)
o += "/"
# explode boxes if needed
def box_name(n):
return "%s_%d" % (e.unit, n)
def box_n_exists(n):
if one_unit and n > 0:
return False
return box_exists(box_name(n))
if not noexplode and not box_exists(e.unit) and box_n_exists(0):
return ",".join(["uncore_" + box_name(x) + o.replace("_NUM", "_%d" % (x)) for x in
itertools.takewhile(box_n_exists, itertools.count())])
return "uncore_%s%s" % (e.unit, o.replace("_NUM", ""))
def filter_qual(self):
def check_qual(q):
if q == "":
return False
if q == "one_unit":
return True
if "=" in q:
q, _ = q.split("=")
if has_format_any(q, "uncore_" + self.unit):
return True
warn_once("%s: format %s not supported. Filtering out" % (self.unit, q))
return False
self.newextra = ",".join(filter(check_qual, convert_uncore(self.newextra, ()).split(",")))
output = output_newstyle
def ffs(flag):
assert flag != 0
m = 1
j = 0
while (flag & m) == 0:
m = m << 1
j += 1
return j
perf_qual = "kuhGHSD" # without pebs
def extra_set(e):
return set(map(lambda x: x[0],
re.findall(r"(" + "|".join([x[0] for x in qual_map + qualval_map + uncore_map]) + "|[" + perf_qual + "]|p+)", e)))
def merge_extra(a, b):
m = a | b
if 'ppp' in m:
m = m - set(['p', 'pp'])
if 'pp' in m:
m = m - set(['p'])
m = m - set([':'])
return m
def print_event(name, desc, f, human, wrap, pmu=""):
desc = "".join([y for y in desc if y < chr(127)])
print(" %-42s" % (name,), end='', file=f)
if pmu:
print(" [%s]" % pmu, end='', file=f)
if human:
print("\n%s" % (wrap.fill(desc),), file=f)
else:
print(" [%s]" % (desc,), file=f)
def uncore_exists(box, postfix=""):
if file_exists("/sys/devices/uncore_" + box + postfix):
return True
if file_exists("/sys/devices/uncore_" + box + "_0" + postfix):
return True
return False
missing_boxes = set()
def check_uncore_event(e, extramsg):
if uncore_exists(e.unit):
if e.cmask and not uncore_exists(e.unit, "/format/cmask"):
warn_once("Uncore unit " + e.unit + " missing cmask for " + e.name)
extramsg.append("not supported due to missing cmask in PMU")
return None
if e.umask and not uncore_exists(e.unit, "/format/umask"):
warn_once("Uncore unit " + e.unit + " missing umask for " + e.name)
extramsg.append("not supported due to missing umask in PMU")
return None
return e
if e.unit not in missing_boxes:
warn_once("Uncore unit " + e.unit + " missing")
missing_boxes.add(e.unit)
extramsg.append("not supported due to missing PMU")
return None
fixed_counters = {
"inst_retired.any": (0xc0, 0, 0),
"cpu_clk_unhalted.thread": (0x3c, 0, 0),
"cpu_clk_unhalted.thread_any": (0x3c, 0, 1),
"cpu_clk_unhalted.core": (0x3c, 0, 1),
}
def update_ename(ev, name):
if ev:
ev = copy.deepcopy(ev)
ev.name = name
return ev
def json_open(name):
if ocverbose:
print("open", name, file=sys.stderr)
d = open(name, "rb").read()
if not isinstance(d, str):
d = d.decode('utf-8')
json_data = json.loads(d)
if isinstance(json_data, dict) and 'Events' in json_data:
json_data = json_data['Events']
return json_data
class EmapNativeJSON(object):
"""Read an event table."""
def __init__(self, name, pmu):
self.events = {}
self.perf_events = {}
self.codes = {}
self.desc = {}
self.pevents = {}
self.latego = False
self.uncore_events = {}
self.error = False
self.pmu = pmu
self.read_events(name)
def add_event(self, e):
self.events[e.name] = e
self.perf_events[e.name.replace('.', '_')] = e # workaround for perf-style naming
if e.pname:
self.pevents[e.pname] = e
self.codes[e.val] = e
self.desc[e.name] = e.desc
e.pmu = self.pmu
def read_table(self, r):
for row in r:
def get(x):
return row[x]
def gethex(x):
return int(get(x).split(",")[0], 16)
def getdec(x):
return int(get(x), 10)
name = get(u'EventName').lower().rstrip()
try:
code = gethex(u'EventCode')
umask = gethex(u'UMask')
if 'UMaskExt' in row:
umask |= gethex(u'UMaskExt') << (40 - 8)
except ValueError:
if ocverbose:
print("cannot parse event", name)
continue
anyf = 0
if name in fixed_counters:
code, umask, anyf = fixed_counters[name]
if u'Other' in row:
other = gethex(u'Other') << 16
else:
other = 0
other |= gethex(u'EdgeDetect') << 18
if u'AnyThread' in row:
other |= (gethex(u'AnyThread') | anyf) << 21
other |= getdec(u'CounterMask') << 24
other |= gethex(u'Invert') << 23
val = code | (umask << 8) | other
val &= EVMASK
d = get(u'PublicDescription')
if d is None:
d = ''
d = d.strip()
e = Event(name, val, d)
e.newextra = ""
if other & ((1 << 16)|(1 << 17)):
if other & (1<<16):
e.extra += "u"
if other & (1 << 17):
e.extra += "k"
e.perfqual = None
if u'MSRIndex' in row and get(u'MSRIndex') and get(u'MSRValue'):
msrnum = gethex(u'MSRIndex')
msrval = gethex(u'MSRValue')
if version.offcore and msrnum in (0x1a6, 0x1a7):
e.newextra = ",offcore_rsp=0x%x" % (msrval, )
e.perfqual = "offcore_rsp"
elif version.ldlat and msrnum in (0x3f6,):
e.newextra = ",ldlat=0x%x" % (msrval, )
e.perfqual = "ldlat"
elif msrnum == 0x3f7:
e.newextra = ",frontend=%#x" % (msrval, )
e.perfqual = "frontend"
# add new msr here
else:
e.msrval = msrval
e.msr = msrnum
if u'SampleAfterValue' in row:
e.overflow = get(u'SampleAfterValue')
e.counter = get(u'Counter')
e.precise = getdec(u'Precise') if u'Precise' in row else 0
e.collectpebs = getdec(u'CollectPEBS') if u'CollectPEBS' in row else 0
e.pebs = getdec(u'PEBS') if u'PEBS' in row else 0
if e.collectpebs > 1 or e.pebs >= 2:
e.extra += "pp"
if len(e.counter.split(",")) == 1:
e.extra += "p"
try:
if get(u'Errata') != "null":
try:
d += " Errata: "
d += get(u'Errata')
e.errata = get(u'Errata')
except UnicodeDecodeError:
pass
except KeyError:
pass
e.desc = d
for (flag, name) in extra_flags:
if val & flag:
e.newextra += ",%s=%d" % (name, (val & flag) >> ffs(flag), )
e.period = int(get(u'SampleAfterValue')) if u'SampleAfterValue' in row else 0
self.add_event(e)
def getevent(self, e, nocheck=False, extramsg=[]):
"""Retrieve an event with name e. Return Event object or None.
When nocheck is set don't check against current system."""
e = e.lower()
extra = ""
edelim = ""
m = re.match(r'([^:]+):request=([^:]+):response=([^:]+)', e)
if m:
ename = m.group(1) + "." + m.group(2) + "." + m.group(3)
return update_ename(self.getevent(ename, nocheck=nocheck, extramsg=extramsg), e)
m = re.match(r'(.*?):(.*)', e)
if m:
extra = m.group(2)
edelim = ":"
e = m.group(1)
if e in self.events:
# hack for now. Avoid ambiguity with :p
# Should handle qualmap properly here
extra = extra.replace("period=", "sample-after=")
userextra = extra
extra = extra_set(extra)
ev = self.events[e]
ev_extra = extra_set(ev.extra)
if extra and merge_extra(ev_extra, extra) > ev_extra:
ev = copy.deepcopy(self.events[e])
ev.userextra = userextra
ev.extra = "".join(sorted(merge_extra(ev_extra, extra)))
return ev
return self.events[e]
elif e.endswith("_ps"):
return update_ename(self.getevent(e[:-3] + ":p" + extra), e)
elif e.startswith("offcore") and (e + "_0") in self.events:
return update_ename(self.getevent(e + "_0" + edelim + extra), e)
elif e in self.uncore_events:
ev = self.uncore_events[e]
if ev and not nocheck:
ev = check_uncore_event(ev, extramsg)
if ev and extra:
ev = copy.deepcopy(ev)
ev.newextra = extra
return ev
elif e in self.perf_events:
return self.perf_events[e]
elif e in self.pevents:
return self.pevents[e]
extramsg.append("event not found for %s" % self.pmu)
return None
# XXX need to handle exploded events
def update_event(self, e, ev):
if e not in self.pevents:
self.pevents[e] = ev
def getraw(self, r):
e = "r%x" % (r)
if e in self.pevents:
ev = self.pevents[e]
s = ev.name
if ev.extra:
s += ":" + ev.extra
return s
return "!Raw 0x%x" % (r,)
def getperf(self, p):
if p in self.pevents:
e = self.pevents[p]
n = e.name
if e.userextra:
n += ":" + e.userextra
return n
return p
def dumpevents(self, f=sys.stdout, human=True, uncore=True):
"""Print all events with descriptions to the file descriptor f.
When human is true word wrap all the descriptions."""
wrap = None
if human:
wrap = textwrap.TextWrapper(initial_indent=" ",
subsequent_indent=" ")
for k in sorted(self.events.keys()):
print_event(k, self.desc[k], f, human, wrap, self.pmu)
if uncore:
for k in sorted(self.uncore_events.keys()):
print_event(k, self.uncore_events[k].desc, f, human, wrap)
def read_events(self, name):
"""Read JSON normal events table."""
if name.find("JKT") >= 0 or name.find("Jaketown") >= 0:
self.latego = True
try:
data = json_open(name)
except ValueError as e:
print("Cannot parse", name + ":", e.message, file=sys.stderr)
self.error = True
return
self.read_table(data)
if "topdown.slots" in self.events:
self.add_topdown()
def add_offcore(self, name):
"""Read offcore table."""
data = json_open(name)
# {
# "MATRIX_REQUEST": "DEMAND_DATA_RD",
# "MATRIX_RESPONSE": "NULL",
# "MATRIX_VALUE": "0x0000000001",
# "MATRIX_REGISTER": "0,1",
# "DESCRIPTION": "Counts demand data reads that"
# },
offcore_response = self.getevent("OFFCORE_RESPONSE")
if not offcore_response:
return
requests = []
responses = []
for row in data:
if row[u"MATRIX_REQUEST"].upper() != "NULL":
requests.append((row[u"MATRIX_REQUEST"], row[u"MATRIX_VALUE"], row[u"DESCRIPTION"]))
if row[u"MATRIX_RESPONSE"].upper() != "NULL":
responses.append((row[u"MATRIX_RESPONSE"], row[u"MATRIX_VALUE"], row[u"DESCRIPTION"]))
def create_event(req_name, req_val, req_desc, res_name, res_val, res_desc):
oe = copy.deepcopy(offcore_response)
oe.name = ("OFFCORE_RESPONSE.%s.%s" % (req_name, res_name)).lower()
if oe.name.lower() in self.events:
return
oe.msrval = int(req_val, 16) | (int(res_val, 16) << 16)
oe.desc = req_desc + " " + res_desc
if version.offcore:
oe.newextra = ",offcore_rsp=0x%x" % (oe.msrval, )
else:
oe.msr = 0x1a6
self.add_event(oe)
for a, b in itertools.product(requests, responses):
create_event(*(a + b))
def add_uncore(self, name, force=False):
data = json_open(name)
for row in data:
name = row['EventName'].lower()
try:
self.uncore_events[name] = UncoreEvent(name, row)
except UnicodeEncodeError:
pass
def add_topdown(self):
def td_event(name, pname, desc, counter):
e = Event(name, 0, desc)
e.counter = counter
e.pname = pname
self.add_event(e)
td_event("perf_metrics.retiring", "topdown-retiring", "Number of slots the pipeline was frontend bound.", "32")
td_event("perf_metrics.bad_speculation", "topdown-bad-spec", "Number of slots the pipeline was doing bad speculation.", "33")
td_event("perf_metrics.frontend_bound", "topdown-fe-bound", "Number of slots the pipeline was frontend bound.", "34")
td_event("perf_metrics.backend_bound", "topdown-be-bound", "Number of slots the pipeline was backend bound.", "35")
td_event("topdown.slots", "slots", "Number of slots", "36")
if "topdown.memory_bound_slots" in self.events:
td_event("perf_metrics.heavy_operations", "topdown-heavy-ops", "Number of slots pipeline retired microcode instructions with >2 uops", "36")
td_event("perf_metrics.branch_mispredicts", "topdown-br-mispredict", "Number of slots frontend was bound by branch mispredictions", "37")
td_event("perf_metrics.memory_bound", "topdown-mem-bound", "Number of slots backend was bound by memory", "38")
td_event("perf_metrics.fetch_latency", "topdown-fetch-lat", "Number of slots frontend was bound by memory fetch latency", "39")
pmu_to_type = {
"cpu_core": ("hybridcore", "Core"),
"cpu_atom": ("hybridcore", "Atom"),
"cpu": ("core", None),
}
def json_with_extra(el, eventmap_is_file, pmu):
typ = pmu_to_type[pmu]
name = event_download.eventlist_name(el, key=typ[0], hybridkey=typ[1])
if not os.path.exists(name):
if pmu == "cpu_core":
name = event_download.eventlist_name(el, "core")
else:
name = event_download.eventlist_name(el, "hybridcore", hybridkey="Core")
emap = EmapNativeJSON(name, pmu)
if not emap or emap.error:
print("parsing", name, "failed", file=sys.stderr)
return None
if experimental:
try:
emap.read_events(event_download.eventlist_name(el, "core experimental"))
except IOError:
pass
add_extra_env(emap, el, eventmap_is_file)
return emap
def add_extra_env(emap, el, eventmap_is_file):
try:
oc = os.getenv("OFFCORE")
if oc:
oc = canon_emapvar(oc, "matrix")
oc = event_download.eventlist_name(el, "offcore")
emap.add_offcore(oc)
elif not eventmap_is_file:
oc = event_download.eventlist_name(el, "offcore")
if os.path.exists(oc) and el != oc:
emap.add_offcore(oc)
if experimental:
oc = event_download.eventlist_name(el, "offcore experimental")
if os.path.exists(oc) and oc != el:
emap.add_offcore(oc)
except IOError:
print("Cannot open offcore", oc, file=sys.stderr)
try:
uc = os.getenv("UNCORE")
if uc:
uc = canon_emapvar(uc, "uncore")
uc = event_download.eventlist_name(uc, "uncore")
emap.add_uncore(uc)
elif not eventmap_is_file:
uc = event_download.eventlist_name(el, "uncore")
if os.path.exists(uc) and uc != el:
emap.add_uncore(uc)
if experimental:
uc = event_download.eventlist_name(el, "uncore experimental")
if os.path.exists(uc) and uc != el:
emap.add_uncore(uc)
except IOError:
print("Cannot open uncore", uc, file=sys.stderr)
def read_map(env, typ, r):
try:
e2 = os.getenv(env)
if e2:
e2 = canon_emapvar(e2, typ)
r(e2)
# don't try to download for now
except IOError:
print("Cannot open " + env, e2, file=sys.stderr)
read_map("EVENTMAP2", "core", emap.read_events)
read_map("EVENTMAP3", "core", emap.read_events)
read_map("UNCORE2", "uncore", emap.add_uncore)
def canon_emapvar(el, typ):
if ("*" in el or "." in el or "_" in el) and "/" not in el and not file_exists(el):
el = "%s/%s" % (event_download.getdir(), el)
if '*' in el:
l = glob.glob(el)
if l:
if len(l) > 1:
l = [x for x in l if x.find(typ) >= 0]
if l:
el = l[0]
return el
def find_emap(eventvar="EVENTMAP", pmu="cpu"):
"""Search and read a perfmon event map.
When the EVENTMAP environment variable is set read that, otherwise
read the map for the current CPU. EVENTMAP can be a CPU specifier
in the map file or a path name.
Dito for the OFFCORE and UNCORE environment variables.
Optionally pass the name of the EVENTMAP variable, and the cpu pmu name.
Return an emap object that contains the events and can be queried
or None if nothing is found or the current CPU is unknown."""
el = os.getenv(eventvar)
if not el:
eventmap_is_file = False
el = event_download.get_cpustr()
else:
eventmap_is_file = "/" in el
el = canon_emapvar(el, "core")
if "/" in el:
try:
emap = EmapNativeJSON(el, pmu)
if not emap or emap.error:
return None
add_extra_env(emap, el, eventmap_is_file)
return emap
except IOError:
return None
try:
if not force_download:
return json_with_extra(el, eventmap_is_file, pmu)
except IOError:
pass
try:
toget = ["core"]