[rrd-developers] Res: Announce RRDtool Performance Tester

[Georger Araujo]

These are my numbers. Environment is rrdtool-1.2.15 on Windows XP SP2 compiled with MinGW (gcc 3.4.2). perl is ActiveState perl v5.8.8 build 817. Hardware is a Pentium M 1.6 GHz w/ 512 MB RAM and very light system load.

---8<---cut here---
C:\MinGW\ntop-3.2.2\rrdtool-1.2.15\perftest>perl perftest.pl

RRDtool Performance Tester
--------------------------
This Program will create an increassing number of rrds and update them.
The rrds are modeld after what mrtg would create. The Program
will report the number of updates that can be performed per second.
Since rrdtool update performance is helped greatly by the disk cache,
you will observe a sharp drop in performance once the cache is
exhausted. The program tries to detect this change and stop running.

Create     10 rrds    243 c/s (0.00989 sdv)   Update     10 rrds    3629 u/s (0.00361 sdv)
Create     10 rrds    936 c/s (0.00023 sdv)   Update     20 rrds    4061 u/s (0.00330 sdv)
Create     20 rrds   1063 c/s (0.00037 sdv)   Update     40 rrds    3071 u/s (0.00677 sdv)
Create     40 rrds   1176 c/s (0.00027 sdv)   Update     80 rrds    3816 u/s (0.00354 sdv)
Create     80 rrds    693 c/s (0.00433 sdv)   Update    160 rrds      63 u/s (0.15763 sdv)
Create    160 rrds    160 c/s (0.02671 sdv)   Update    320 rrds      48 u/s (0.10603 sdv)
Create    320 rrds     19 c/s (0.09878 sdv)   Update    640 rrds      55 u/s (0.05208 sdv)
Create    640 rrds     20 c/s (0.16745 sdv)   Update   1280 rrds      12 u/s (0.11742 sdv)
Create    384 rrds     34 c/s (0.12468 sdv)   Update   1664 rrds      13 u/s (0.07930 sdv)

* Stopping test since your system seems to have hit the cache barrier.

* You may want to run the test repeatedly to be sure that
  your system has not been busy with something other than
  this test.

* If you increas the number of rrd files above the cache barrier,
  the perfomance penalty should be linear.

* Remove the test tree in db-2780
---8<---cut here---

What do you think? Regards,

Georger

----- Mensagem original ----
De: Tobias Oetiker <tobi at oetiker.ch>
Para: rrd-users at list.ee.ethz.ch; rrd-developers at list.ee.ethz.ch
Enviadas: Quinta-feira, 26 de Outubro de 2006 19:28:35
Assunto: [rrd-developers] Announce RRDtool Performance Tester

Hi Folks,

Every now and then there are discussions on the toppic of How fast
is your system. To get some comparison numbers, I have written this
very "update heavy" rrd performance tester.

I will include it with the next rrdtool release.
For now you can get it from

http://oss.oetiker.ch/rrdtool/pub/contrib

I would be interested to see some numbers ...
especially on windows hosts ...


cheers
tobi


-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
http://tobi.oetiker.ch tobi at oetiker.ch ++41 62 213 9902

--
Unsubscribe mailto:rrd-developers-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-developers-request at list.ee.ethz.ch?subject=help
Archive     http://lists.ee.ethz.ch/rrd-developers
WebAdmin    http://lists.ee.ethz.ch/lsg2.cgi






		
_______________________________________________________ 
O Yahoo! está de cara nova. Venha conferir! 
http://br.yahoo.com

--
Unsubscribe mailto:rrd-developers-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-developers-request at list.ee.ethz.ch?subject=help
Archive     http://lists.ee.ethz.ch/rrd-developers
WebAdmin    http://lists.ee.ethz.ch/lsg2.cgi