[GTALUG] System Monitor / sysmon

[David Collier-Brown]

On the sar front, you watch out for avgqu-sz (and/or await and svctm) 
suddenly increasing as tps increases.
The queue length is like the "load factor", where <= 1 is good, 4 is 
bad, and more is evil.

--dave

On 2018-08-20 12:18 a.m., Kevin Cozens via talk wrote:
> On 2018-08-19 11:53 AM, D. Hugh Redelmeier via talk wrote:
>> But I think that my system's bottleneck is often disk I/O.  sysmon 
>> has no
>> strip chart for that.
> [snip]
>> Do you have any suggestions for a simple (possibly simplistic) tool to
>> show disk bottlenecks in real time?
>
> A quick internet search suggests you should look at the sar command 
> that is part of sysstat.
>

-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb at spamcop.net           |                      -- Mark Twain