Re: Finding what's causing I/O

2005-10-29 Thread Francisco
On Fri, 23 Sep 2005, Shanker Balan wrote: See top(1): m Toggle the display between 'cpu' and 'io' modes. Thanks for the feedback. had not had a chace to read lists for weeks.. That does exactly what I need. My only complain is that once one switches to that mode that the default sor

Re: Finding what's causing I/O

2005-09-27 Thread martinko
Thomas Hurst wrote: * martinko ([EMAIL PROTECTED]) wrote: well, thanks for the switch. i couldn't find any description/explanation of/on the columns (VCSW,..) in top(1) man page, though. :( VCSW = Voluntary Context Switch IVCSW = Involuntary Context Switch A very nice article on the meanin

Re: Finding what's causing I/O

2005-09-26 Thread Thomas Hurst
* martinko ([EMAIL PROTECTED]) wrote: > well, thanks for the switch. i couldn't find any > description/explanation of/on the columns (VCSW,..) in top(1) man > page, though. :( VCSW = Voluntary Context Switch IVCSW = Involuntary Context Switch A very nice article on the meaning of these is here:

Re: Finding what's causing I/O

2005-09-26 Thread martinko
Shanker Balan wrote: Hello, Francisco Reyes wrote, On Fri, 23 Sep 2005, Joseph Koshy wrote: Is there a way to find out which program(s) are causing the I/O? ktrace(8); you can use it to trace all descendants of 'init'. Looking at the man page it's non-obvious how to use it (to me). Sp

Re: Finding what's causing I/O

2005-09-23 Thread Eric Anderson
Francisco Reyes wrote: On Fri, 23 Sep 2005, Joseph Koshy wrote: Is there a way to find out which program(s) are causing the I/O? ktrace(8); you can use it to trace all descendants of 'init'. Looking at the man page it's non-obvious how to use it (to me). Specially it seems one needs to

Re: Finding what's causing I/O

2005-09-23 Thread Shanker Balan
Hello, Francisco Reyes wrote, > On Fri, 23 Sep 2005, Joseph Koshy wrote: > > >>Is there a way to find out which program(s) are causing the I/O? > > > >ktrace(8); you can use it to trace all descendants of 'init'. > > Looking at the man page it's non-obvious how to use it (to me). > > > Special

Re: Finding what's causing I/O

2005-09-23 Thread Francisco Reyes
On Fri, 23 Sep 2005, Joseph Koshy wrote: Is there a way to find out which program(s) are causing the I/O? ktrace(8); you can use it to trace all descendants of 'init'. Looking at the man page it's non-obvious how to use it (to me). Specially it seems one needs to indicate a pid or a comman

Re: Finding what's causing I/O

2005-09-22 Thread Joseph Koshy
> Is there a way to find out which program(s) are causing > the I/O? ktrace(8); you can use it to trace all descendants of 'init'. -- FreeBSD Volunteer, http://people.freebsd.org/~jkoshy ___ freebsd-performance@freebsd.org mailing list http://lists.

Finding what's causing I/O

2005-09-22 Thread Francisco Reyes
Looking at vmstat I see the "b" colun never hits zero and it's usually between 5 and 20. Is there a way to find out which program(s) are causing the I/O? In some of the machines it was near trivial to find the culprit, but have a handfull of machines that I am not sure what the cause of I/O is