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b2e1907c3aed8ba2620b25a8d9a976901ea05aed
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67 Commits
Author SHA1 Message Date
Bob Lantz b2e1907c3a Increase link delay to 2ms for more robust effect 
With a 1 ms delay, the performance tests periodically fails
under nested virtualization, which is how we are testing it.
Increasing the delay should make the effect (lower TCP
data rates as latency increases, due to TCP's congestion
control algorithm) more pronounced and robust.
 2016-08-25 03:55:28 -07:00
Bob Lantz 21086cd79e Reduce CPU so that iperf client is CPU bound 
If we want to observe a monotonic affect, we should
make sure that we are in fact CPU limited where it
matters. In this case, we are CPU limiting the hosts,
and the iperf client uses a lot of CPU. We need to
reduce the CPU allocation so that iperf is in fact
CPU bound.

We also correct the CPU allocation so that the client
and server each receive 50% of the total. Previously
we were specifying the per-host CPU allocation, so
45% meant we were allocating 90% of the overall CPU,
which seems a bit confusing. On the other hand, now
at 40% each host gets 20% of the CPU, which could also
be considered slightly confusing!

Although the client transmit rate is going to be the
limiting factor, we still measure the received data
rate at the server, because that is more interesting
than the initial burst of buffering at the client.
Measuring at the server becomes more important as
we reduce the iperf time.

The output is also changed slightly, and the test has
been updated appropriately.
 2016-08-24 23:59:02 -07:00
Bob Lantz ee15ce2243 print -> info; end the horror of print vs. print() 
Although we could use print() from __future__, this messes
up scripts which use examples as modules.

The simple, if not nicest for 2.7, solution is to use
info(), output() and other mininet.log functions. The disadvantage
is that we may have to adjust things if we change info() to
add automatic newlines, but we can burn that bridge in Mininet
3.x.
 2016-08-23 01:54:54 -07:00
Bob Lantz 1eb6f65e40 Increase scratchnet timeout to see if it's just slow. 2016-08-22 23:18:58 -07:00
Bob Lantz 8ac077a721 Remove "from __future__ import print" 
This was well-intentioned, but it causes more trouble
than it's worth.

Fixes #652
 2016-08-08 15:28:52 -07:00
Brad Walker 70fcc45893 Use print function 2016-06-21 16:27:04 -07:00
Bob Lantz e113f8ed12 Add error message to shed light on why this sometimes fails 2016-02-02 23:32:03 -08:00
Bob Lantz 5dc15aeaaf Tolerate slow startup/lost pings for now 
In the long run we should troubleshoot the performance issue
on kvm/Ubuntu15, but for now we are relaxing the constraint.

Closes #593
 2016-01-26 15:40:56 -08:00
Bob Lantz 0fac568a19 Rewrite tolerance to be saner (plus or minus 20%) 2016-01-22 13:52:15 -08:00
Bob Lantz 5365831de8 Use 0% loss when testing examples/simpleperf.py 
Also clarified the code in test_simpleperf.py.

Fixes #590
 2016-01-21 17:07:39 -08:00
Bob Lantz 5a530af189 Remove trailing whitespace. ;-/ 2014-12-01 15:39:44 -08:00
Bob Lantz e0bf8ece3c Minor code cleanup 2014-11-23 17:17:21 -08:00
Bob Lantz 37bdf14b49 Rename examples.{intfOptions,multiLink} -> {intfoptions,multilink} 2014-11-23 17:11:06 -08:00
cody burkard 06d9e4bba7 add example and test for multiple links 2014-10-28 16:10:46 -07:00
lantz b7999978f9 Merge pull request #409 from cdburkard/patches/cleanup_tests 
if a test fails or exits with an error, run cleanup as a precaution
 2014-10-13 18:06:44 -07:00
Bob Lantz 501eb4f916 Add more information for test condition failure 2014-10-13 13:52:43 -07:00
cody burkard 33d42e25e6 if a test fails or exits with an error, run cleanup as a precaution 2014-10-03 09:50:39 -07:00
cody burkard 7c5d2771f7 wait for sshd to start in example 2014-10-03 04:52:21 -07:00
Bob Lantz 9487cb508d Fix typo 2014-09-29 19:57:26 -07:00
cody burkard 74857ba474 remove User Switch from linearBandwidth due to poor performance 2014-09-27 04:47:56 -07:00
cody burkard 54bd9e6112 continue to test cfs if rt is not enabled in kernel 2014-09-27 03:20:07 -07:00
lantz 5fc3f57ede Merge pull request #386 from cdburkard/patches/cpu_test 
Skip test_cpu.py if RT_GROUP_SCHED is not enabled
 2014-09-25 14:19:55 -07:00
lantz 5789dae8be Merge pull request #387 from cdburkard/patches/iperf_bw 
use udp with iperf to measure loss. pings are not reliable
 2014-09-25 14:17:09 -07:00
cody burkard 7eeaed992c use udp with iperf to measure loss. pings are not reliable 2014-09-25 13:09:24 -07:00
cody burkard f0ce6f501d measure loss with udp iperf 2014-09-25 12:39:42 -07:00
cody burkard 823d1b9990 skip test if RT_GROUP_SCHED is not enabled 2014-09-25 10:16:55 -07:00
lantz e4d49e6df7 Merge pull request #229 from mininet/devel/mobility-example 
A simple mobility API and example
 2014-09-22 12:31:31 -07:00
Brian O'Connor 57686d3149 Merge pull request #381 from cdburkard/examples/interfaces 
adding example and test for intf.config()
 2014-09-20 23:31:30 -07:00
cody burkard 706229da77 adding example and test for intf.config 2014-09-17 12:55:59 -07:00
cody burkard 3df3610199 adding sanity check for cluster edition 2014-09-09 22:30:20 -07:00
Brian O'Connor 05f3fbae73 Merge pull request #362 from mininet/devel/vlanhost 
Adding VLANHost to Examples
 2014-08-28 17:49:25 -07:00
Brian O'Connor d334c1ccfe adding test for vlanhost.py and adding vlantopo example 2014-08-28 02:48:46 -07:00
Brian O'Connor aa4dfda44c adding documentation and test for linuxrouter.py 2014-08-27 22:01:18 -07:00
Bob Lantz dd6424fee8 Simple mobility example. 2014-08-26 19:55:48 -07:00
Brian O'Connor cee62eb28e adding natnet example test 2014-08-13 22:08:15 -07:00
Cody Burkard 29e5bee34e fixed issue with AssertTrue and skip first test if using old OVS version 2014-06-10 22:15:49 -07:00
Cody 87b6021428 restructured code and added a test for the numberedports.py example 2014-05-29 17:26:40 -07:00
lantz a722a3a110 Update test_simpleperf.py 
Add spaces.
 2014-01-28 15:21:48 -08:00
lantz f2942a7f92 Merge pull request #253 from sieben/Simplify_chained_comparaison 
OK...
 2014-01-28 15:20:29 -08:00
Rémy Léone e10703cd7b fixup: unresolved_references 2013-12-20 14:46:38 +01:00
Rémy Léone aee33863c8 fixup: Simplify_chained_comparaison 2013-12-20 14:41:22 +01:00
Bob Lantz 433d83221a Fix typo 2013-09-19 04:12:04 -07:00
Bob Lantz 76a8a1637f Clean up sshd.py and its test so it works on VirtualBox 2013-09-18 20:48:22 -07:00
Brian O'Connor bfb560045c add rm to sshd tests 2013-09-11 14:45:49 -07:00
Brian O'Connor c5da46f125 added -quick options to skip long tests 2013-09-11 14:45:49 -07:00
Brian O'Connor 10fdd01dc8 fixed runner.py and added -v and -quick options 2013-09-11 14:45:48 -07:00
Brian O'Connor 1e9e781c12 changed 1% to 2% in test_limit.py 2013-09-11 14:45:48 -07:00
Brian O'Connor 24b38126ec cleaned up and commented test_simpleperf.py 2013-09-11 14:45:48 -07:00
Brian O'Connor 3577a6989d cleaned up and commented test_tree1024.py and test_treeping64.py 2013-09-11 14:45:48 -07:00
Brian O'Connor 48c49c54e2 cleaned up and commented test_sshd.py 2013-09-11 14:45:48 -07:00