passt/.gitignore, branch 2024_07_26.57a21d2

test/perf: Get iperf3 stats from client side

2023-11-07T08:56:06+00:00

iperf3 generates statistics about its run on both the client and server
sides.  They don't have exactly the same information, but both have the
pieces we need (AFAICT the server communicates some nformation to the
client over the control socket, so the most important information is in the
client side output, even if measured by the server).

Currently we use the server side information for our measurements. Using
the client side information has several advantages though:

 * We can directly wait for the client to complete and we know we'll have
   the output we want.  We don't need to sleep to give the server time to
   write out the results.
 * That in turn means we can wrap up as soon as the client is done, we
   don't need to wait overlong to make sure everything is finished.
 * The slightly different organisation of the data in the client output
   means that we always want the same json value, rather than requiring
   slightly different onces for UDP and TCP.

The fact that we avoid some extra delays speeds up the overal run of the
perf tests by around 7 minutes (out of around 35 minutes) on my laptop.

The fact that we no longer unconditionally kill client and server after
a certain time means that the client could run indefinitely if the server
doesn't respond.  We mitigate that by setting 1s connect timeout on the
client.  This isn't foolproof - if we get an initial response, but then
lose connectivity this could still run indefinitely, however it does cover
by far the most likely failure cases.  --snd-timeout would provide more
robustness, but I've hit odd failures when trying to use it.

Signed-off-by: David Gibson 
Signed-off-by: Stefano Brivio

Revert "MAKE: Fix parallel builds; .o files; .gitignore; new makedocs"

2023-07-10T04:33:44+00:00

This reverts commit cc2a6bec3cf2ff6ed0c043ada93d352466614373: I
applied that patch by mistake.

Fixes: cc2a6bec3cf2 ("MAKE: Fix parallel builds; .o files; .gitignore; new makedocs")
Signed-off-by: Stefano Brivio

MAKE: Fix parallel builds; .o files; .gitignore; new makedocs

2023-07-07T20:34:37+00:00

test: Move pidfiles and nsholder sockets into state directory

2022-09-13T09:12:41+00:00

Currently they go in the passt source tree with a fixed names, which means
their presence can mess with subsequent test runs.

Signed-off-by: David Gibson

test: Rewrite test_iperf3

2022-09-07T09:01:22+00:00

test_iperf3() is a pretty inscrutable mess of nested background processes.
It has a number of ugly sleeps needed to wait for things to complete.

Rewrite it to be cleaner:
  * Use the construct (a & b & wait) to run 'a' and 'b' in parallel, but
    then wait for them both to complete before continuing
  * This allows us to wait for both the server and client to finish, rather
    than sleeping
  * Use jq to do all the math we need to get the final result, rather than
    jq followed by some complicated 'bc' mangling

Signed-off-by: David Gibson

gitignore pidfiles other than passt.pid

2022-09-07T09:01:22+00:00

The tests now use a number of pidfiles for qemu and pasta as well as
passt.pid.  Broaden the .gitignore file so these aren't unintentially
committed.

Signed-off-by: David Gibson

gitignore README.plain.md

2022-08-24T16:01:48+00:00

Add the generated README.plain.md file to .gitignore.

Signed-off-by: David Gibson

Clean up passt.pid file

2022-07-13T23:32:42+00:00

If the tests are interrupted at the right point a passt.pid file can be
left over.  Clean it up with "make clean" and add it to .gitignore so it
doesn't get accidentally committed.

Signed-off-by: David Gibson

Add basic .gitignore files

2022-05-19T13:24:09+00:00

Ignore various files generated during build or test.

Reviewed-by: David Gibson 
Signed-off-by: David Gibson