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perf scripts python: call-graph-from-sql.py: Add data helper functions

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Add helper functions for a few common cases.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20181001062853.28285-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2018-10-01 09:28:44 +03:00 committed by Arnaldo Carvalho de Melo
parent 70d831e85c
commit 4be9ace7e1
1 changed files with 29 additions and 25 deletions
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54
tools/perf/scripts/python/call-graph-from-sql.py
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@ -52,6 +52,28 @@ from PySide.QtGui import *
from PySide.QtSql import *
from decimal import *
# Data formatting helpers
def dsoname(name):
if name == "[kernel.kallsyms]":
return "[kernel]"
return name
# Percent to one decimal place
def PercentToOneDP(n, d):
if not d:
return "0.0"
x = (n * Decimal(100)) / d
return str(x.quantize(Decimal(".1"), rounding=ROUND_HALF_UP))
# Helper for queries that must not fail
def QueryExec(query, stmt):
ret = query.exec_(stmt)
if not ret:
raise Exception("Query failed: " + query.lastError().text())
class TreeItem():
def __init__(self, db, row, parent_item):
@ -73,9 +95,7 @@ class TreeItem():
def setUpRoot(self):
self.query_done = True
query = QSqlQuery(self.db)
ret = query.exec_('SELECT id, comm FROM comms')
if not ret:
raise Exception("Query failed: " + query.lastError().text())
QueryExec(query, 'SELECT id, comm FROM comms')
while query.next():
if not query.value(0):
continue
@ -91,9 +111,7 @@ class TreeItem():
self.child_items = []
self.child_count = 0
query = QSqlQuery(self.db)
ret = query.exec_('SELECT thread_id, ( SELECT pid FROM threads WHERE id = thread_id ), ( SELECT tid FROM threads WHERE id = thread_id ) FROM comm_threads WHERE comm_id = ' + str(comm_id))
if not ret:
raise Exception("Query failed: " + query.lastError().text())
QueryExec(query, 'SELECT thread_id, ( SELECT pid FROM threads WHERE id = thread_id ), ( SELECT tid FROM threads WHERE id = thread_id ) FROM comm_threads WHERE comm_id = ' + str(comm_id))
while query.next():
child_item = TreeItem(self.db, self.child_count, self)
self.child_items.append(child_item)
@ -114,18 +132,6 @@ class TreeItem():
def getRow(self):
return self.row
def timePercent(self, b):
if not self.time:
return "0.0"
x = (b * Decimal(100)) / self.time
return str(x.quantize(Decimal('.1'), rounding=ROUND_HALF_UP))
def branchPercent(self, b):
if not self.branch_count:
return "0.0"
x = (b * Decimal(100)) / self.branch_count
return str(x.quantize(Decimal('.1'), rounding=ROUND_HALF_UP))
def addChild(self, call_path_id, name, dso, count, time, branch_count):
child_item = TreeItem(self.db, self.child_count, self)
child_item.comm_id = self.comm_id
@ -134,14 +140,12 @@ class TreeItem():
child_item.branch_count = branch_count
child_item.time = time
child_item.data[0] = name
if dso == "[kernel.kallsyms]":
dso = "[kernel]"
child_item.data[1] = dso
child_item.data[1] = dsoname(dso)
child_item.data[2] = str(count)
child_item.data[3] = str(time)
child_item.data[4] = self.timePercent(time)
child_item.data[4] = PercentToOneDP(time, self.time)
child_item.data[5] = str(branch_count)
child_item.data[6] = self.branchPercent(branch_count)
child_item.data[6] = PercentToOneDP(branch_count, self.branch_count)
self.child_items.append(child_item)
self.child_count += 1
@ -189,12 +193,12 @@ class TreeItem():
self.branch_count = total_branch_count
if self.branch_count:
for child_item in self.child_items:
child_item.data[6] = self.branchPercent(child_item.branch_count)
child_item.data[6] = PercentToOneDP(child_item.branch_count, self.branch_count)
if total_time > self.time:
self.time = total_time
if self.time:
for child_item in self.child_items:
child_item.data[4] = self.timePercent(child_item.time)
child_item.data[4] = PercentToOneDP(child_item.time, self.time)
def childCount(self):
if not self.query_done: