GitLab

Fixed bug where a single packet in a quantum caused an infinite loop. Fixed a bug where only socket buffer size updated in a quanum caused an infinite loop. Outstanding issue: Odd emulab side latency. Way too low.

Added ping error handling: timeout, ttl exceeded, and unknown.
 Values returned to ops are negative numbers. The meanings of these
 is listed in the top section of bgmon.pl
Note, that these changes have not been tested but were not complex.
testing is a definite TODO.

IP and not the real plab node IP.

Minor bugfix - quote the "NULL" strings.

Commit the option I added to runbgmon/bgmon.pl that allows you to specify
which port iperf is to use (-i <port>).  Also fix a minor issue with latency
and bandwidth period option parsing.

of the planet-* links.

know what is actually being reported.

Look for the XXX in get_plabinfo to see where it needs to be beefed
up.

Added support for the new buffer-exhaustion method of bandwidth measurement. It appears to do the right thing, but I still need to test it using tg.

instructed via stdin to change its rate of sending and blocksize... and
can also be prescripted.  Unfortunately, I didn't get time to finish the
server...

Added a capped pending buffer which retains write and timing information. Minor reporting fixes. When I checked out start-experiment, it said that there was an RCS version and merged the changes into my version. Therefore checking in this version should be correct. Mike should doublecheck.

corresponding planet-* nodes.

One catch: I only did the backend, I didn't do the part that actually
looks up the plab nodes in the DB.  Once get_plabinfo() is filled in
with a real body, this will work!

in some cases.

Add list of categorized plab nodes.  Note that this list only contains nodes
that were known to be available as of _today_.  I'll need to go back and
add the missing down/unavilable nodes in order for it to be complete.

Changes to bgmon and friends to allow specification of an alternate experiment
to listen/send with (expt event field).  This defaults to "__none".  I also
put in options for specifying bandwidth and latency periods, and generally
fixed up option parsing.

The runbgmon script has also been changed to autodetect the pid/eid and pass
this to bgmon.  You can override this with the "-e" switch.

* opsrecv sends an ack back to bgmon for each packet it receives.

* Rework caching code a bit, and rearrange slightly to deal with acks.

Note that opsrecv does not deal with duplicates yet ... still thinking
about that, but it actually does not matter too much if the info gets
duplicated in the DP; multiple entries with the same data and the same
timestamp *should* be harmless.

 bgmon-running node to that of another node.

The samples with long RTT values are removed for possible lack of symmetric
one-way delays. The remaining samples with offset outliers are also removed
by the median filter.

 * auto-pelab.ns: add an event-group that runs 'update -t' on the nodes
   to update the tarballs/RPMs.  NOTE that you will need to modify your
   experiment and update your version of the NS file for this to work.

 * install-tarball: simple script to run tevc and trigger the tarball
   updates

 * start-experiment: '-p' option to monitor the real planetlab nodes
   instead of the emulated ones, -M/-S to set the arguments passed to
   the monitors/stubs, -m/-s to append to the current arguments passed
   to the monitors/stubs.

 * monitor/auto-monitor.sh: pass through the command line arguments

things like inter-write timings.

to somewhere other than stdout or netmond.

See:     #MARK_RELIABLE  sections

w/o it.

event a chance to get out.