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rteval/SOURCES/rteval-Refactor-collapse_cpulist-in-systopology.patch

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From 4b4f50900e38a931ed9585c6cf200b74c0120a20 Mon Sep 17 00:00:00 2001
From: Tomas Glozar <tglozar@redhat.com>
Date: Wed, 29 Nov 2023 10:34:54 +0100
Subject: [PATCH 1/9] rteval: Refactor collapse_cpulist in systopology
Instead of having duplicate code in two functions, one top-level and
one member function of CpuList, have only one static function in
CpuList.
Additionally re-write the implementation to use a more straight forward
one-pass algorithm.
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: John Kacur <jkacur@redhat.com>
---
rteval-cmd | 4 +-
rteval/modules/loads/__init__.py | 4 +-
rteval/modules/measurement/__init__.py | 4 +-
rteval/modules/measurement/cyclictest.py | 6 +--
rteval/systopology.py | 68 ++++++++----------------
5 files changed, 30 insertions(+), 56 deletions(-)
diff --git a/rteval-cmd b/rteval-cmd
index 6f613a3..7c41429 100755
--- a/rteval-cmd
+++ b/rteval-cmd
@@ -30,7 +30,7 @@ from rteval import RtEval, rtevalConfig
from rteval.modules.loads import LoadModules
from rteval.modules.measurement import MeasurementModules
from rteval.version import RTEVAL_VERSION
-from rteval.systopology import CpuList, SysTopology, collapse_cpulist
+from rteval.systopology import CpuList, SysTopology
from rteval.modules.loads.kcompile import ModuleParameters
compress_cpulist = CpuList.compress_cpulist
@@ -211,7 +211,7 @@ def remove_offline(cpulist):
""" return cpulist in collapsed compressed form with only online cpus """
tmplist = expand_cpulist(cpulist)
tmplist = SysTopology().online_cpulist(tmplist)
- return collapse_cpulist(tmplist)
+ return CpuList.collapse_cpulist(tmplist)
if __name__ == '__main__':
diff --git a/rteval/modules/loads/__init__.py b/rteval/modules/loads/__init__.py
index aca0c9f..13fba1e 100644
--- a/rteval/modules/loads/__init__.py
+++ b/rteval/modules/loads/__init__.py
@@ -11,7 +11,7 @@ import libxml2
from rteval.Log import Log
from rteval.rtevalConfig import rtevalCfgSection
from rteval.modules import RtEvalModules, rtevalModulePrototype
-from rteval.systopology import collapse_cpulist, CpuList, SysTopology as SysTop
+from rteval.systopology import CpuList, SysTopology as SysTop
class LoadThread(rtevalModulePrototype):
def __init__(self, name, config, logger=None):
@@ -120,7 +120,7 @@ class LoadModules(RtEvalModules):
cpulist = CpuList(cpulist).cpulist
else:
cpulist = SysTop().default_cpus()
- rep_n.newProp("loadcpus", collapse_cpulist(cpulist))
+ rep_n.newProp("loadcpus", CpuList.collapse_cpulist(cpulist))
return rep_n
diff --git a/rteval/modules/measurement/__init__.py b/rteval/modules/measurement/__init__.py
index 2a0556b..41b8022 100644
--- a/rteval/modules/measurement/__init__.py
+++ b/rteval/modules/measurement/__init__.py
@@ -5,7 +5,7 @@
import libxml2
from rteval.modules import RtEvalModules, ModuleContainer
-from rteval.systopology import collapse_cpulist, CpuList, SysTopology as SysTop
+from rteval.systopology import CpuList, SysTopology as SysTop
class MeasurementProfile(RtEvalModules):
"""Keeps and controls all the measurement modules with the same measurement profile"""
@@ -187,7 +187,7 @@ measurement profiles, based on their characteristics"""
cpulist = CpuList(cpulist).cpulist
else:
cpulist = SysTop().online_cpus() if run_on_isolcpus else SysTop().default_cpus()
- rep_n.newProp("measurecpus", collapse_cpulist(cpulist))
+ rep_n.newProp("measurecpus", CpuList.collapse_cpulist(cpulist))
for mp in self.__measureprofiles:
mprep_n = mp.MakeReport()
diff --git a/rteval/modules/measurement/cyclictest.py b/rteval/modules/measurement/cyclictest.py
index 0af1d31..1b14e7e 100644
--- a/rteval/modules/measurement/cyclictest.py
+++ b/rteval/modules/measurement/cyclictest.py
@@ -17,7 +17,7 @@ import libxml2
from rteval.Log import Log
from rteval.modules import rtevalModulePrototype
from rteval.systopology import cpuinfo
-from rteval.systopology import CpuList, SysTopology, collapse_cpulist
+from rteval.systopology import CpuList, SysTopology
expand_cpulist = CpuList.expand_cpulist
@@ -203,7 +203,7 @@ class Cyclictest(rtevalModulePrototype):
# Only include online cpus
self.__cpus = CpuList(self.__cpus).cpulist
# Reset cpulist from the newly calculated self.__cpus
- self.__cpulist = collapse_cpulist(self.__cpus)
+ self.__cpulist = CpuList.collapse_cpulist(self.__cpus)
self.__cpus = [str(c) for c in self.__cpus]
self.__sparse = True
if self.__run_on_isolcpus:
@@ -220,7 +220,7 @@ class Cyclictest(rtevalModulePrototype):
self.__cpus = [c for c in self.__cpus if c in cpuset or self.__run_on_isolcpus and c in isolcpus]
if self.__run_on_isolcpus:
self.__sparse = True
- self.__cpulist = collapse_cpulist(self.__cpus)
+ self.__cpulist = CpuList.collapse_cpulist([int(c) for c in self.__cpus])
# Sort the list of cpus to align with the order reported by cyclictest
self.__cpus.sort(key=int)
diff --git a/rteval/systopology.py b/rteval/systopology.py
index 62ad355..ea8e242 100644
--- a/rteval/systopology.py
+++ b/rteval/systopology.py
@@ -10,25 +10,6 @@ import os
import os.path
import glob
-# Utility version of collapse_cpulist that doesn't require a CpuList object
-def collapse_cpulist(cpulist):
- """ Collapse a list of cpu numbers into a string range
- of cpus (e.g. 0-5, 7, 9) """
- if len(cpulist) == 0:
- return ""
- idx = CpuList.longest_sequence(cpulist)
- if idx == 0:
- seq = str(cpulist[0])
- else:
- if idx == 1:
- seq = f"{cpulist[0]},{cpulist[idx]}"
- else:
- seq = f"{cpulist[0]}-{cpulist[idx]}"
-
- rest = collapse_cpulist(cpulist[idx+1:])
- if rest == "":
- return seq
- return ",".join((seq, rest))
def sysread(path, obj):
""" Helper function for reading system files """
@@ -93,7 +74,7 @@ class CpuList:
self.cpulist.sort()
def __str__(self):
- return self.__collapse_cpulist(self.cpulist)
+ return self.collapse_cpulist(self.cpulist)
def __contains__(self, cpu):
return cpu in self.cpulist
@@ -114,35 +95,28 @@ class CpuList:
return os.path.exists(os.path.join(CpuList.cpupath, "isolated"))
@staticmethod
- def longest_sequence(cpulist):
- """ return index of last element of a sequence that steps by one """
- lim = len(cpulist)
- for idx, _ in enumerate(cpulist):
- if idx+1 == lim:
- break
- if int(cpulist[idx+1]) != (int(cpulist[idx])+1):
- return idx
- return lim - 1
-
- def __collapse_cpulist(self, cpulist):
- """ Collapse a list of cpu numbers into a string range
+ def collapse_cpulist(cpulist):
+ """
+ Collapse a list of cpu numbers into a string range
of cpus (e.g. 0-5, 7, 9)
"""
- if len(cpulist) == 0:
- return ""
- idx = self.longest_sequence(cpulist)
- if idx == 0:
- seq = str(cpulist[0])
- else:
- if idx == 1:
- seq = f"{cpulist[0]},{cpulist[idx]}"
+ cur_range = [None, None]
+ result = []
+ for cpu in cpulist + [None]:
+ if cur_range[0] is None:
+ cur_range[0] = cur_range[1] = cpu
+ continue
+ if cpu is not None and cpu == cur_range[1] + 1:
+ # Extend currently processed range
+ cur_range[1] += 1
else:
- seq = f"{cpulist[0]}-{cpulist[idx]}"
-
- rest = self.__collapse_cpulist(cpulist[idx+1:])
- if rest == "":
- return seq
- return ",".join((seq, rest))
+ # Range processing finished, add range to string
+ result.append(f"{cur_range[0]}-{cur_range[1]}"
+ if cur_range[0] != cur_range[1]
+ else str(cur_range[0]))
+ # Reset
+ cur_range[0] = cur_range[1] = cpu
+ return ",".join(result)
@staticmethod
def compress_cpulist(cpulist):
@@ -428,7 +402,7 @@ if __name__ == "__main__":
onlcpus = s.online_cpus()
print(f'onlcpus = {onlcpus}')
- onlcpus = collapse_cpulist(onlcpus)
+ onlcpus = CpuList.collapse_cpulist(onlcpus)
print(f'onlcpus = {onlcpus}')
onlcpus_str = s.online_cpus_str()
--
2.43.0
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