Re: [algogeeks] os question
It's b. Windows follow this Operation. On Fri, Dec 7, 2012 at 4:21 AM, manish narayan.shiv...@gmail.com wrote: Four processes of 1gb,1.2gb,2gb,2gb are there and RAM available is 2gb. We have a time shared system. Which of the following is the most appropriate scheduling algorithm? a. all processes are loaded sequentially 1 by 1 b. load one process at a time and execute processes in RR fashion c. load 1gb, 1,2gb first then processes 3 and 4 follow d. All processes can be loaded together and CPU time shared among them -- --
Re: [algogeeks] os question
If virtualization is concerned, then answer would be choice d. Since its not necessary to load complete process in memory. On Sat, Dec 8, 2012 at 12:45 AM, sahil gupta sahilgupta...@gmail.comwrote: It's b. Windows follow this Operation. On Fri, Dec 7, 2012 at 4:21 AM, manish narayan.shiv...@gmail.com wrote: Four processes of 1gb,1.2gb,2gb,2gb are there and RAM available is 2gb. We have a time shared system. Which of the following is the most appropriate scheduling algorithm? a. all processes are loaded sequentially 1 by 1 b. load one process at a time and execute processes in RR fashion c. load 1gb, 1,2gb first then processes 3 and 4 follow d. All processes can be loaded together and CPU time shared among them -- -- --
[algogeeks] os question
Four processes of 1gb,1.2gb,2gb,2gb are there and RAM available is 2gb. We have a time shared system. Which of the following is the most appropriate scheduling algorithm? a. all processes are loaded sequentially 1 by 1 b. load one process at a time and execute processes in RR fashion c. load 1gb, 1,2gb first then processes 3 and 4 follow d. All processes can be loaded together and CPU time shared among them --
[algogeeks] OS question..
Q1. If we have infinite memory, then do we still be needing paging? Q2. Given only 8bits registers, you have to find average of 4 bit registers values without using any operation involving 16 bit calculations. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/iUT57I-DOHoJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question..
I think the answer to Q1 may Yes. Cause the virtual memory of program is limited, they need logically contiguous memory, and have limit from OS and processor(32-bit, or 64-bit) yet. I have no idea about Q2. On Mon, Nov 5, 2012 at 4:30 AM, manish narayan.shiv...@gmail.com wrote: Q1. If we have infinite memory, then do we still be needing paging? Q2. Given only 8bits registers, you have to find average of 4 bit registers values without using any operation involving 16 bit calculations. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/iUT57I-DOHoJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] OS question
I have a doubt when each process has it's own separate page table then why is there s system wide page table required ? Also if Page table is such that it maps virtual address to a physical address then I think two process may map to same physical address because all process have same virtual address space any good link on system wide page table may also solve my problem -- *UTKARSH SRIVASTAV CSE-3 B-Tech 3rd Year @MNNIT ALLAHABAD* -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
Google search this 6.033 You will get the basics of processor mode of execution and rings of execution Hope I got the question ! On Wed, Jan 25, 2012 at 4:21 PM, UTKARSH SRIVASTAV usrivastav...@gmail.comwrote: I have a doubt when each process has it's own separate page table then why is there s system wide page table required ? Also if Page table is such that it maps virtual address to a physical address then I think two process may map to same physical address because all process have same virtual address space any good link on system wide page table may also solve my problem -- *UTKARSH SRIVASTAV CSE-3 B-Tech 3rd Year @MNNIT ALLAHABAD* -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
can't get :( On Wed, Jan 25, 2012 at 5:19 PM, Rahul raikra...@gmail.com wrote: Google search this 6.033 You will get the basics of processor mode of execution and rings of execution Hope I got the question ! On Wed, Jan 25, 2012 at 4:21 PM, UTKARSH SRIVASTAV usrivastav...@gmail.com wrote: I have a doubt when each process has it's own separate page table then why is there s system wide page table required ? Also if Page table is such that it maps virtual address to a physical address then I think two process may map to same physical address because all process have same virtual address space any good link on system wide page table may also solve my problem -- *UTKARSH SRIVASTAV CSE-3 B-Tech 3rd Year @MNNIT ALLAHABAD* -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- *UTKARSH SRIVASTAV CSE-3 B-Tech 3rd Year @MNNIT ALLAHABAD* -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] OS question
What happens when a thread calls exec ?? What happens to the other threads of the same process ?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
I think the answer would be the thread calling execute will have to wait for the executed command to exit and then it will proceed. As for other threads, they shouldn't be affected. Please do correct me if it is wrong. On 4 August 2011 20:27, ankit sambyal ankitsamb...@gmail.com wrote: What happens when a thread calls exec ?? What happens to the other threads of the same process ?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- ___ Please do not print this e-mail until urgent requirement. Go Green!! Save Papers = Save Trees -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
@Dipankar: But all the threads of a process share code and data section. So, how is it possible that they are not affected ??? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
Good point. Let me search a bit on Threads. Will get back asap. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/7pWIqcdwugcJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
To elaborate more. New process image will not have the existing threads and
user defined data declared in current process will be wiped out. Parent can
do is to wait for the child status by calling wait().
for example
main()
{
pid = fork();
if (child) {
exec(ls); /// here 'ls' will replace the child process
no matter how many threads it has
}
else // parent
wait for child
}
-
Azhar.
On Thu, Aug 4, 2011 at 9:50 PM, Azhar Hussain azhar...@gmail.com wrote:
The *exec* family of functions shall replace the current process image
with a new process image. It does not matter how many threads you have
whole process gets replaced with new one.
-
Azhar.
On Thu, Aug 4, 2011 at 8:27 PM, ankit sambyal ankitsamb...@gmail.comwrote:
What happens when a thread calls exec ?? What happens to the other threads
of the same process ??
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Re: [algogeeks] OS question
The *exec* family of functions shall replace the current process image with a new process image. It does not matter how many threads you have whole process gets replaced with new one. - Azhar. On Thu, Aug 4, 2011 at 8:27 PM, ankit sambyal ankitsamb...@gmail.comwrote: What happens when a thread calls exec ?? What happens to the other threads of the same process ?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] OS question
Thnks Azhar :) got the point -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
