Gather the runtime of a process

Federico G. Babelis

Hi All:

I need to gather the runtime in format "HH:mm:ss" of certain processes from
its start to its end, any ideas ?

thanks,
Federico

Nov 21 '05 #1

Subscribe Reply

1762

Jay B. Harlow [MVP - Outlook]

Federico,
I normally use QueryPerformanc eCounter as its in the units used by
Performance Counters:

Something like:

Declare Function QueryPerformanc eCounter Lib "Kernel32" (ByRef counter
As Long) As Boolean
Declare Function QueryPerformanc eFrequency Lib "Kernel32" (ByRef
frequency As Long) As Boolean
' set some time var
Dim start, finish, frequency As Long
QueryPerformanc eFrequency(freq uency)
QueryPerformanc eCounter(start)

' work

QueryPerformanc eCounter(finish )
Dim time As TimeSpan = TimeSpan.FromSe conds((finish - start) /
frequency)

Alternatively you can use DateTime:

' set some time var
Dim start, finish As DateTime
start = DateTime.Now

' work

finish = DateTime.Now
Dim time As TimeSpan = finish.Subtract (start)

A third alternative would be to use "Ticks"

' set some time var
Dim start, finish As Integer
start = Environment.Tic kCount

' work

' set second time var and comapre to get result
finish = Environment.Tic kCount
Dim time As TimeSpan = TimeSpan.FromMi lliseconds(fini sh - start)

My understanding is that QueryPerformanc eCounter will normally be a higher
resolution then Environment.Tic kCount, however QueryPerformanc eCounter may
not be available.

VB.NET 2005 (aka Whidbey, due out later in 2005) simplifies the choice by
providing a System.Diagnost ics.Stopwatch class that will automatically
choose between QueryPerformanc eCounter & Environment.Tic kCount...

http://lab.msdn.microsoft.com/vs2005/

http://msdn2.microsoft.com/library/ebf7z0sw.aspx

Hope this helps
Jay

"Federico G. Babelis" <fe******@gazum .com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...

Hi All:

I need to gather the runtime in format "HH:mm:ss" of certain processes
from
its start to its end, any ideas ?

thanks,
Federico

Nov 21 '05 #2

Federico G. Babelis

Impressive !

Thanks for your help !

PS: How can i transform the TimeSpan results into format HH:mm:ss ?

Regards,
Federico
"Jay B. Harlow [MVP - Outlook]" <Ja************ @msn.com> wrote in message
news:eA******** ******@TK2MSFTN GP10.phx.gbl...

Federico,
I normally use QueryPerformanc eCounter as its in the units used by
Performance Counters:

Something like:

Declare Function QueryPerformanc eCounter Lib "Kernel32" (ByRef counter
As Long) As Boolean
Declare Function QueryPerformanc eFrequency Lib "Kernel32" (ByRef
frequency As Long) As Boolean
' set some time var
Dim start, finish, frequency As Long
QueryPerformanc eFrequency(freq uency)
QueryPerformanc eCounter(start)

' work

QueryPerformanc eCounter(finish )
Dim time As TimeSpan = TimeSpan.FromSe conds((finish - start) /
frequency)

Alternatively you can use DateTime:

' set some time var
Dim start, finish As DateTime
start = DateTime.Now

' work

finish = DateTime.Now
Dim time As TimeSpan = finish.Subtract (start)

A third alternative would be to use "Ticks"

' set some time var
Dim start, finish As Integer
start = Environment.Tic kCount

' work

' set second time var and comapre to get result
finish = Environment.Tic kCount
Dim time As TimeSpan = TimeSpan.FromMi lliseconds(fini sh - start)

My understanding is that QueryPerformanc eCounter will normally be a higher
resolution then Environment.Tic kCount, however QueryPerformanc eCounter may
not be available.

VB.NET 2005 (aka Whidbey, due out later in 2005) simplifies the choice by
providing a System.Diagnost ics.Stopwatch class that will automatically
choose between QueryPerformanc eCounter & Environment.Tic kCount...

http://lab.msdn.microsoft.com/vs2005/

http://msdn2.microsoft.com/library/ebf7z0sw.aspx

Hope this helps
Jay

"Federico G. Babelis" <fe******@gazum .com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...
Hi All:

I need to gather the runtime in format "HH:mm:ss" of certain processes
from
its start to its end, any ideas ?

thanks,
Federico

Nov 21 '05 #3

Larry Lard

Federico G. Babelis wrote:

PS: How can i transform the TimeSpan results into format HH:mm:ss ?

You are lucky in that "hh:mm:ss" is the default string conversion of a
TimeSpan, so just MyTimeSpan.ToSt ring() will give you what you want.

--
Larry Lard
Replies to group please

Nov 21 '05 #4

Jay B. Harlow [MVP - Outlook]

Federico,
As Larry suggests, calling TimeSpan.ToStri ng() will return the results in
the format: [-][d.]hh:mm:ss[.ff]

http://msdn.microsoft.com/library/de...tringTopic.asp

Remember the ToString method of "formattabl e" objects in .NET is normally
overridden to provide formatting for that object.

If you don't want the fractional seconds or days on the formatted string, I
normally convert the TimeSpan to a DateTime & then use custom DateTime
formatting.

Note TimeSpan itself only supports a fixed format, I will convert a TimeSpan
into a DateTime if I need custom formatting.

Dim ts As TimeSpan
Dim dt As DateTime = DateTime.MinVal ue.Add(ts)
Dim s As String

s = ts.ToString() ' default TimeSpan formatting
s = dt.ToString("H: mm:ss") ' custom DateTime formatting
For details on custom datetime formats see:

http://msdn.microsoft.com/library/de...matstrings.asp

For information on formatting in .NET in general see:
http://msdn.microsoft.com/library/de...ttingtypes.asp
Hope this helps
Jay

"Federico G. Babelis" <fe******@gazum .com> wrote in message
news:ui******** ******@TK2MSFTN GP10.phx.gbl...

Impressive !

Thanks for your help !

PS: How can i transform the TimeSpan results into format HH:mm:ss ?

Regards,
Federico
"Jay B. Harlow [MVP - Outlook]" <Ja************ @msn.com> wrote in message
news:eA******** ******@TK2MSFTN GP10.phx.gbl...
Federico,
I normally use QueryPerformanc eCounter as its in the units used by
Performance Counters:

Something like:

Declare Function QueryPerformanc eCounter Lib "Kernel32" (ByRef counter
As Long) As Boolean
Declare Function QueryPerformanc eFrequency Lib "Kernel32" (ByRef
frequency As Long) As Boolean
' set some time var
Dim start, finish, frequency As Long
QueryPerformanc eFrequency(freq uency)
QueryPerformanc eCounter(start)

' work

QueryPerformanc eCounter(finish )
Dim time As TimeSpan = TimeSpan.FromSe conds((finish - start) /
frequency)

Alternatively you can use DateTime:

' set some time var
Dim start, finish As DateTime
start = DateTime.Now

' work

finish = DateTime.Now
Dim time As TimeSpan = finish.Subtract (start)

A third alternative would be to use "Ticks"

' set some time var
Dim start, finish As Integer
start = Environment.Tic kCount

' work

' set second time var and comapre to get result
finish = Environment.Tic kCount
Dim time As TimeSpan = TimeSpan.FromMi lliseconds(fini sh - start)

My understanding is that QueryPerformanc eCounter will normally be a
higher
resolution then Environment.Tic kCount, however QueryPerformanc eCounter
may
not be available.

VB.NET 2005 (aka Whidbey, due out later in 2005) simplifies the choice by
providing a System.Diagnost ics.Stopwatch class that will automatically
choose between QueryPerformanc eCounter & Environment.Tic kCount...

http://lab.msdn.microsoft.com/vs2005/

http://msdn2.microsoft.com/library/ebf7z0sw.aspx

Hope this helps
Jay

"Federico G. Babelis" <fe******@gazum .com> wrote in message
news:et******** ******@TK2MSFTN GP10.phx.gbl...
Hi All:

I need to gather the runtime in format "HH:mm:ss" of certain processes
from
its start to its end, any ideas ?

thanks,
Federico

Nov 21 '05 #5

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