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doubts on threads?
Joined: 18 Jan 2005
Posts: 1
doubts on threads?
hi,
I am a new member of this group. i have doubts on threads.
what are threads? which is faster - a thread or a process? any books on thread system calls on unix.
please give some answers.
with regrds
-uma__________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Joined: 19 Jan 2005
Posts: 3
doubts on threads?
> what are threads?
Threads are the part of the process.
Thread is a last executing of any process.
> which is faster - a thread or a process?
A debate can be there..
But as thread is a last executing it`s frequency could be higher.
For better demostration about thread and process
C programming by Vijay mukhi is better for novice.
cheers..
Niraj
On Tue, 18 Jan 2005 07:44:45 -0800 (PST), uma v <uma_v81@...> wrote:
> hi,
> I am a new member of this group. i have doubts on threads.
> thread system calls on unix.
>
> please give some answers.
>
> with regrds
> -uma
>
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Joined: 26 Jul 2003
Posts: 20
doubts on threads?
what are threads? which is faster - a thread or a process? any
> books on thread system calls on unix.
If you are using User Space threads, they are definitely a lot
faster than kernel-threads. The most standard threads package is
called pthreads. It has ports on almost every UNIX and even
Windows.
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Joined: 02 Jan 2005
Posts: 9
doubts on threads?
--- uma v <uma_v81@...> wrote:
> hi,
> I am a new member of this group. i have doubts on
> threads.
> what are threads? which is faster - a thread or a
> process? any books on thread system calls on unix.
>
> please give some answers.
>
> with regrds
> -uma
>
> __________________________________________________
> Do You Yahoo!?
Hi uma,
Threads can be called light weight processes.
If you have an option to go for threads and processes,
go for threads if you need faster processing. The only
disadvantage being that the global data gets shared
which can lead to bugs. also using threads and having
shared data requires locking mechanisms like
semaphores to be implemented.
Knowledge on threads comes mainly from programming on
them. Even man pages on pthreads (for unix) or msdn
help for C++ is sufficient to get an idea and get
going.
Regards
Manik
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Joined: 25 Jan 2005
Posts: 8
doubts on threads?
hi thread is always light i.e why they are called as Light weight process in unix.If you use process insted of thread ,tehn OS has to set aside specific memory for it.OS has to switch the processes to give them specific CPu cycles.Also for intercation b/w process we need to use IPc calls . but on the other hand thread runs in the process space of Process itself in which they are created .Also we can share data very easily with threads using Static variables.Hence thread will be the best choice.Try to read from GILBERTZ OS book.Its really good book.Or search on net.
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