[hobbit] ping test is too slow

[Jerald Sheets]

Bruce's answer was 100% pertinent to the question asked, and in my
experience the proper answer.

Hobbitping is not everything it could be, and it's much better from the
get-go to use fping.  Whether you like the answer or not doesn't make it any
less an answer.


---
Jerald M. Sheets jr.




On Mon, Jun 14, 2010 at 2:19 PM, Ryan Novosielski <novosirj at umdnj.edu>wrote:

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> Do not thread hijack.
>
> thorsten.erdmann at daimler.com wrote:
> >
> > Hi
> >
> > for some time I am having problems with out ping test of hobbit. It runs
> > longer that the time intervall. Is it possible to speed up the test? I
> > don't want to make the intervall longer.
> > I am using the hobbitping. I tried doubling --max_pps from 50 to 100
> > with no effect.
> >
> > Most of the time the DNS-lookup eats up 20 seconds, but sometimes it is
> > near zero! Why that? Most of my monitored system have a testip tag, so
> > should not do any DNS lookup at all. But some WLAN accesspoints which
> > are configured for using DHCP does not have the testip tag.
> >
> > In the manpage of hobbitping I read something about a runtime of 18
> > seconds for 1000 clients. Why it is so slow on my machine? It's a fast
> > machine, Opteron with 1GBit network interface.
> >
> > Here ist the output of bbtest:
> >
> > bbtest-net version 4.2.0
> > SSL library : OpenSSL 0.9.7a Feb 19 2003
> > LDAP library: OpenLDAP 20213
> >
> > Statistics:
> >  Hosts total           :      834
> >  Hosts with no tests   :       20
> >  Total test count      :      819
> >  Status messages       :      820
> >  Alert status msgs     :        0
> >  Transmissions         :       10
> >
> > DNS statistics:
> >  # hostnames resolved  :      288
> >  # succesful           :      288
> >  # failed              :        0
> >  # calls to dnsresolve :      290
> >
> > TCP test statistics:
> >  # TCP tests total     :        3
> >  # HTTP tests          :        2
> >  # Simple TCP tests    :        1
> >  # Connection attempts :        3
> >  # bytes written       :      261
> >  # bytes read          :     1467
> >
> >
> > Error output:
> > WARNING: Runtime 68 longer than time limit (60)
> >
> >
> > TIME SPENT
> > Event                                            Starttime
>  Duration
> > bbtest-net startup                       1276505088.377616
>   -
> > Service definitions loaded               1276505088.380818
> >  0.003202
> > Tests loaded                             1276505088.417419
> >  0.036601
> > DNS lookups completed                    1276505108.462455
> > 20.045036 <<<----
> > Test engine setup completed              1276505108.479249
> >  0.016794
> > TCP tests completed                      1276505108.482081
> >  0.002832
> > PING test completed (814 hosts)          1276505156.193513
> > 47.711432 <<<----
> > PING test results sent                   1276505156.334798
> >  0.141285
> > Test result collection completed         1276505156.334808
> >  0.000010
> > LDAP test engine setup completed         1276505156.334809
> >  0.000001
> > LDAP tests executed                      1276505156.334819
> >  0.000010
> > LDAP tests result collection completed   1276505156.334820
> >  0.000001
> > NSLOOKUP tests executed                  1276505156.339081
> >  0.004261
> > Test results transmitted                 1276505156.473376
> >  0.134295
> > bbtest-net completed                     1276505156.475145
> >  0.001769
> > TIME TOTAL
> > 68.097529
> >
> >
> > Thorsten Erdmann
> >
> > If you are not the intended addressee, please inform us immediately that
> > you have received this e-mail in error, and delete it. We thank you for
> > your cooperation.
> >
>
>
> - --
> - ---- _  _ _  _ ___  _  _  _
> |Y#| |  | |\/| |  \ |\ |  | |Ryan Novosielski - Sr. Systems Programmer
> |$&| |__| |  | |__/ | \| _| |novosirj at umdnj.edu - 973/972.0922 (2-0922)
> \__/ Univ. of Med. and Dent.|IST/CST-Academic Svcs. - ADMC 450, Newark
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