What the term IO burst and CPU burst means? Post: 8491

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

X-Term for Windows

Hi Everyone, I need some information from all of you guys. I generally work on a Solaris OS in my school and I had heard that I can download something called X-Term on a Windows system and still work on some of the graphical things on windows which generally work only on unix. This is what I...

2. Programming

Create a Term & Run chars on this Term

hi floks ! i'd like to know how can i transmete a character or a string from my source code to a term and make it interpret or un by the shell wich is running in my term. I'd like to create a Term from my code (and get its file descriptor) and then transmete each char typed on the keyboard to...

3. Shell Programming and Scripting

Help with TERM script

I am trying to amend an existing TERM script to prompt the end user for a password - then take that password and add it to a specific part of an existing file. Here is what I have - BUT - I am confusing Unix with Term and my script does not like what I added b/c the script simply runs through...

4. Shell Programming and Scripting

Search term and output term in desired field

Hi All, I have an input_file below and i would like to use Perl to search for the term "aaa" and output the 3rd term in the same row as "aaa".For Example, i want to search for the term "ddd" and would want the code to ouput the 3rd term in the same row which is "fff". Can somebody help ? ...

5. UNIX for Dummies Questions & Answers

how to get persistant cpu utilization values per process per cpu in linux (! top,ps)

hi, i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot...

6. Solaris

Multi CPU Solaris system shows 100% CPU usage.

Hello Friends, On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization. ========================================================================= $ prstat -a ...

7. Shell Programming and Scripting

killproc -term

Hi, I am trying the function killproc -term and it seems to be doing something extra that kill <pid> doesn't do. My daemon cleanly terminates using kill, but not using killproc. I tried strace on killproc and then killproc works well. I read online that strace ignores SIGSTOP. does that mean...

8. UNIX for Dummies Questions & Answers

Is it possible to combine multiple CPU to act as a single CPU on the same server?

We have a single threaded application which is restricted by CPU usage even though there are multiple CPUs on the server, hence leading to significant performance issues. Is it possible to merge / combine multiple CPUs at OS level so it appear as a single CPU for the application?

LEARN ABOUT MINIX

ddi_dma_burstsizes

ddi_dma_burstsizes(9F)					   Kernel Functions for Drivers 				    ddi_dma_burstsizes(9F)

NAME

       ddi_dma_burstsizes - find out the allowed burst sizes for a DMA mapping

SYNOPSIS

       #include <sys/conf.h>
       #include <sys/ddi.h>
       #include <sys/sunddi.h>

       int ddi_dma_burstsizes(ddi_dma_handle_t handle);

INTERFACE LEVEL

       Solaris DDI specific (Solaris DDI).

PARAMETERS

       handle	       A DMA handle that was filled in by a successful call to ddi_dma_setup(9F).

DESCRIPTION

       ddi_dma_burstsizes()  returns  the  allowed  burst  sizes  for  a DMA mapping. This value is derived from the dlim_burstsizes member of the
       ddi_dma_lim_sparc(9S) structure, but it shows the allowable burstsizes after imposing on it the limitations of other device layers in addi-
       tion to device's own limitations.

RETURN VALUES

       ddi_dma_burstsizes()  returns  a  binary  encoded value of the allowable DMA burst sizes. See ddi_dma_lim_sparc(9S) for a discussion of DMA
       burst sizes.

CONTEXT

       This function can be called from user or interrupt context.

SEE ALSO

       ddi_dma_devalign(9F), ddi_dma_setup(9F), ddi_dma_lim_sparc(9S), ddi_dma_req(9S)

       Writing Device Drivers

SunOS 5.10							    1 Feb 1994						    ddi_dma_burstsizes(9F)