Ulrich Windl wrote:
> On 19 Nov 2009 at 11:07, Erez Zilber wrote:
> 
>> On Thu, Nov 19, 2009 at 9:38 AM, Ulrich Windl
>> <ulrich.wi...@rz.uni-regensburg.de> wrote:
>>> Hi!
>>>
>>> Wouldn't it be more obvious to calculate the average delay to a ping 
>>> request?
>>> (Possibly exponential average as for the system loads) (min and Max would 
>>> be good
>>> as well, but standard deviation probably requires use of the FPU, so that's 
>>> not
>>> possible in kernel modules (AFAIK)).
>> It's in userspace, so (almost) everything is possible. It's nice to
>> have counters, average delay etc, but I want to be able to know
>> exactly when bad things almost happened (i.e. timeout almost expired).
>> Counters/average delay will not help me.
> 
> I thought you want to tune the timeouts. So if properly tuned, the kernel 
> will log 
> when when your measurements are unusual (i.e. timeout exceeded).
> 

I think that is what I wanted. I think Erez wants something a little 
different, right Erez?

> So what yyou really want to have (it seems) is not just a histogram of 
> timeouts, 
> but a history over time as well.
> 
> Ulrich
> 
> --
> 
> You received this message because you are subscribed to the Google Groups 
> "open-iscsi" group.
> To post to this group, send email to open-is...@googlegroups.com.
> To unsubscribe from this group, send email to 
> open-iscsi+unsubscr...@googlegroups.com.
> For more options, visit this group at 
> http://groups.google.com/group/open-iscsi?hl=.
> 
> 

--

You received this message because you are subscribed to the Google Groups 
"open-iscsi" group.
To post to this group, send email to open-is...@googlegroups.com.
To unsubscribe from this group, send email to 
open-iscsi+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/open-iscsi?hl=.


Reply via email to