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Fixed estimate cpu speed method

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Added a unit test
This commit is contained in:
Quajak 2020-11-14 20:50:46 +01:00
parent c4c1d10a7c
commit 39f72f9dfd
2 changed files with 87 additions and 56 deletions
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19
Tests/Cosmos.Core.Tests/CPUTests.cs Normal file
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@ -0,0 +1,19 @@
using NUnit.Framework;
using Cosmos.Core;
using System;
using System.Collections.Generic;
using System.Text;
namespace Cosmos.Core.Tests
{
[TestFixture()]
public class CPUTests
{
[Test()]
public void EstimateCPUSpeedFromNameTest()
{
Assert.AreEqual((long)2.8e9, CPU.EstimateCPUSpeedFromName(" Intel(R) Celeron(R) CPU 2.80GHz"));
Assert.AreEqual((long)2.8e9, CPU.EstimateCPUSpeedFromName("Intel(R) Celeron(R) CPU 2.80GHz"));
}
}
}

124
source/Cosmos.Core/CPU.cs
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@ -171,67 +171,79 @@ namespace Cosmos.Core
if (CanReadCPUID() != 0) if (CanReadCPUID() != 0)
{ {
string s = GetCPUBrandString(); string s = GetCPUBrandString();
var _words = new List<string>(); return EstimateCPUSpeedFromName(s);
string curr = "";
for (int i = 0; i < s.Length; i++)
{
if (s[i] == ' ' || (byte)s[i] == 0)
{
if (curr != "")
{
_words.Add(curr);
}
curr = "";
}
else
{
curr += s[i];
}
}
_words.Add(curr);
string[] words = _words.ToArray();
string[] w = new string[words.Length];
for (int i = 0; i < words.Length; i++) // Switch order
{
w[i] = words[words.Length - i - 1];
}
words = w;
double multiplier = 0;
double value = 0;
for (int i = 0; i < words.Length; i++)
{
if (words[i] == "MHz")
{
multiplier = 10e6;
break;
}
else if (words[i] == "GHz")
{
multiplier = 10e9;
break;
}
else if (words[i] == "THz")
{
multiplier = 10e12;
break;
}
else if (value == 0)
{
Double.TryParse(words[i], out value);
}
}
value *= multiplier;
if((long)value == 0)
{
Global.mDebugger.Send("Unable to calculate cycle speed from " + s);
throw new NotSupportedException("Unable to calculate cycle speed from " + s);
}
return (long)value;
} }
throw new NotSupportedException(); throw new NotSupportedException();
} }
/// <summary>
/// This is only public for testing purposes
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static long EstimateCPUSpeedFromName(string s)
{
var _words = new List<string>();
string curr = "";
for (int i = 0; i < s.Length; i++)
{
if (s[i] == ' ' || (byte)s[i] == 0)
{
if (curr != "")
{
_words.Add(curr);
}
curr = "";
}
else
{
curr += s[i];
}
}
_words.Add(curr);
string[] words = _words.ToArray();
string[] w = new string[words.Length];
for (int i = 0; i < words.Length; i++) // Switch order
{
w[i] = words[words.Length - i - 1];
}
words = w;
double multiplier = 0;
double value = 0;
for (int i = 0; i < words.Length; i++)
{
var word = words[i];
var wordEnd = word.Substring(word.Length - 3, 3);
if (word == "MHz" || wordEnd == "MHz")
{
multiplier = 1e6;
}
else if (word == "GHz" || wordEnd == "GHz")
{
multiplier = 1e9;
}
else if (word == "THz" || wordEnd == "THz")
{
multiplier = 1e12;
}
if (value == 0)
{
if (Double.TryParse(word, out value) || Double.TryParse(word.Substring(0, word.Length - 3), out value))
{
break;
}
}
}
value *= multiplier;
if ((long)value == 0)
{
Global.mDebugger.Send("Unable to calculate cycle speed from " + s);
throw new NotSupportedException("Unable to calculate cycle speed from " + s);
}
return (long)value;
}
/// <summary> /// <summary>
/// Get CPU cycle speed. /// Get CPU cycle speed.
/// </summary> /// </summary>