Also, run a long-running ping test against an IP list and in another window against a domain name list. <div><br></div><div>I'm willing to bet you get latency on the domain list vs. the IP list.</div><div><br clear="all">
---<br>Jerald M. Sheets jr.<br><br><br>
<br><br><div class="gmail_quote">On Thu, Jun 24, 2010 at 9:42 AM, Patrick Nixon <span dir="ltr"><<a href="mailto:pnixon@gmail.com">pnixon@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I'll agree with jerald on this one.<br>
<br>
If your DNS is not resolving properly, it can increase your ping<br>
times as well, because ping does a DNS lookup as well when it<br>
executes.<br>
<br>
Check your DNS server/records, walk through your bb-hosts file to<br>
determine if something is timing out/not resolving, and I suspect<br>
you'll find the culprit<br>
<div><div></div><div class="h5"><br>
On Wed, Jun 23, 2010 at 10:20 AM, Jerald Sheets <<a href="mailto:questy@gmail.com">questy@gmail.com</a>> wrote:<br>
> I am running RHEL5.2, but am not having anywhere near the latency you are.<br>
> The only apparent difference between our output is that I am on Xymon<br>
> 4.3.0-0.beta2. I am also going over a gigabit network, but my DNS<br>
> resolution time never crawls above the microseconds all that much. Your OP<br>
> states that sometimes it takes up to 20 seconds to get resolution, and I'm<br>
> wondering if that isn't where you need to concentrate your efforts?<br>
> As much as I hate to suggest such a thing because of other potential bugs,<br>
> could you gain any benefit from having nscd running on the Xymon host only?<br>
> ---<br>
> Jerald M. Sheets jr.<br>
><br>
><br>
><br>
><br>
> On Wed, Jun 23, 2010 at 9:09 AM, <<a href="mailto:thorsten.erdmann@daimler.com">thorsten.erdmann@daimler.com</a>> wrote:<br>
>><br>
>> Hello again<br>
>><br>
>> Is there really no other option to speed up the ping test, maybe by using<br>
>> multiple instance of fping/hobbitping. A collegue has the same issue on a<br>
>> Hobbitserver running on HPUX.<br>
>> I am running Redhat EL.<br>
>><br>
>> Thorsten Erdmann<br>
>><br>
>><br>
>> <a href="mailto:thorsten.erdmann@daimler.com">thorsten.erdmann@daimler.com</a> schrieb am 18.06.2010 14:06:43:<br>
>><br>
>> ><br>
>> > Hi<br>
>> ><br>
>> > > On Monday, 14 June 2010 19:12:33 White, Bruce wrote:<br>
>> > > > My experience with "hobbitping", is that it is just slower. You are<br>
>> > > > better off downloading and installing "fping". Once you do this,<br>
>> > > > you<br>
>> > > > will need to rebuild hobbit and select fping in the build process.<br>
>> > ><br>
>> > > Instead of rebuilding hobbit, you can change FPING in hobbitserver.cfg<br>
>> > > to<br>
>> > > "/path/to/fping -Ae " or similar.<br>
>> ><br>
>> > sorry for the delay. I just tried fping. But the turnaround time is<br>
>> > exactly the same, no benefit. Any other ideas?<br>
>> ><br>
>> ><br>
>> > bbtest-net version 4.2.0<br>
>> > SSL library : OpenSSL 0.9.7a Feb 19 2003<br>
>> > LDAP library: OpenLDAP 20213<br>
>> ><br>
>> > Statistics:<br>
>> > Hosts total : 834<br>
>> > Hosts with no tests : 20<br>
>> > Total test count : 819<br>
>> > Status messages : 820<br>
>> > Alert status msgs : 0<br>
>> > Transmissions : 10<br>
>> ><br>
>> > DNS statistics:<br>
>> > # hostnames resolved : 287<br>
>> > # succesful : 287<br>
>> > # failed : 0<br>
>> > # calls to dnsresolve : 289<br>
>> ><br>
>> > TCP test statistics:<br>
>> > # TCP tests total : 3<br>
>> > # HTTP tests : 2<br>
>> > # Simple TCP tests : 1<br>
>> > # Connection attempts : 3<br>
>> > # bytes written : 261<br>
>> > # bytes read : 1467<br>
>> ><br>
>> ><br>
>> > TIME SPENT<br>
>> > Event Starttime<br>
>> > Duration<br>
>> > bbtest-net startup 1276862496.735994<br>
>> > -<br>
>> > Service definitions loaded 1276862496.738353<br>
>> > 0.002359<br>
>> > Tests loaded 1276862496.780920<br>
>> > 0.042567<br>
>> > DNS lookups completed 1276862511.817886<br>
>> > 15.036966<br>
>> > Test engine setup completed 1276862511.823173<br>
>> > 0.005287<br>
>> > TCP tests completed 1276862511.825895<br>
>> > 0.002722<br>
>> > PING test completed (814 hosts) 1276862553.583528<br>
>> > 41.757633<br>
>> > PING test results sent 1276862553.718441<br>
>> > 0.134913<br>
>> > Test result collection completed 1276862553.718452<br>
>> > 0.000011<br>
>> > LDAP test engine setup completed 1276862553.718454<br>
>> > 0.000002<br>
>> > LDAP tests executed 1276862553.718455<br>
>> > 0.000001<br>
>> > LDAP tests result collection completed 1276862553.718456<br>
>> > 0.000001<br>
>> > NSLOOKUP tests executed 1276862554.634700<br>
>> > 0.916244<br>
>> > Test results transmitted 1276862554.700414<br>
>> > 0.065714<br>
>> > bbtest-net completed 1276862554.702291<br>
>> > 0.001877<br>
>> > TIME TOTAL<br>
>> > 57.966297<br>
>> ><br>
>> ><br>
>> > Thorsten Erdmann<br>
>> ><br>
>> > <a href="mailto:bgmilne@staff.telkomsa.net">bgmilne@staff.telkomsa.net</a> schrieb am 15.06.2010 12:32:39:<br>
>> ><br>
>> > ><br>
>> > > Regards,<br>
>> > > Buchan<br>
>> > ><br>
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</div></div></blockquote></div><br></div>