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10 Commits

Author SHA1 Message Date
David Gibson
a832a44e67 tests: Explicitly list test files in test/run, remove "onlyfor" support
Currently test/run uses wildcards to run all of the tests in a directory.
However, that wildcard list is filtered down by the "onlyfor" directives
in the test files... usually to a single file.

Therefore, just explicitly list the files we *really* want to run for this
test mode.  This makes it easier to see at the top level what tests will
be executed, and to change that list temporarily while debugging specific
failures.

This means the "onlyfor" directive no longer has any purpose, and we can
remove it.  "onlyfor" was also the only used of the $MODE variable, so we
can remove that too.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2022-07-14 01:32:42 +02:00
Stefano Brivio
4d777144fd test: Embed script for dhclient(8) in mbuto(1) profile
David reports that dhclient-script(8) on Fedora needs a number of
binaries that are not included in PROGS of the current mbuto profile,
and we would also need to include hostnamectl(1) there, which will
fail without a systemd init.

Embed a minimal script for dhclient(8) in the profile itself, written
to /sbin/dhclient-script at boot, to just check what we need to check
out of DHCP and DHCPv6 functionality.

While at it, drop busybox and logger from PROGS, as we don't need them,
and add hostname(1). While DHCP option 12 isn't supported yet by the
DHCP implementation in passt, we should probably add it soon.

Note: owing to the simplicity of this script, we now need to bring up
the interface before starting dhclient: add this in test scripts where
it's not the case yet.

Reported-by: David Gibson <david@gibson.dropbear.id.au>
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

note that we need to bring up the interface before starting dhclient
2022-07-14 01:31:28 +02:00
David Gibson
ca0c33ae5b Tweak dhclient arguments for readability
A number of tests and examples use dhclient in both IPv4 and IPv6 modes.
We use "dhclient -6" for IPv6, but usually just "dhclient" for IPv4.  Add
an explicit "-4" argument to make it more clear and explicit.

In addition, when dhclient is run from within pasta it usually won't be
"real" root, and so will not have access to write the default global pid
file.  This results in a mostly harmless but irritating error:
    Can't create /var/run/dhclient.pid: Permission denied
We can avoid that by using the --no-pid flag to dhclient.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2022-06-15 09:38:10 +02:00
David Gibson
2320ac3349 Don't abbreviate ip(8) arguments in examples and tests
ip(8)'s ability to take abbreviated arguments (e.g. "li sh" instead of
"link show") is very handy when using it interactively, but it doesn't make
for very readable scripts and examples when shown that way.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2022-06-15 09:38:10 +02:00
Stefano Brivio
0ebaac9747 test/perf: Work-around for virtio_net hang before long streams from guest
I didn't have time to investigate the root cause for the virtio_net
TX hang yet. Add a quick work-around for the moment being.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2022-03-29 15:35:38 +02:00
Stefano Brivio
70c05e678e test/perf/passt_tcp: Drop iperf3 window size for host-to-guest tests
With a recent 5.15 kernel, passing a huge window size to iperf3 with
lower MTUs makes iperf3 stop sending packets after a few seconds --
I haven't investigated this in detail, but the window size will be
adjusted dynamically anyway and not passing it doesn't actually
affect throughput, so simply drop the option.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2022-02-01 17:12:24 +01:00
Stefano Brivio
6257a2752e test/perf: Try sourcing maximum scaling frequency from cpufreq
On most recent CPUs, that's a better indication of all-core turbo
frequency, or non-turbo frequency, than /proc/cpuinfo.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2021-10-21 01:24:22 +02:00
Stefano Brivio
7aaff3387a perf/passt_tcp: Don't exceed typical L3 cache sizes with buffers
...we might see misleading rate drops with larger MTUs otherwise.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2021-10-19 09:28:44 +02:00
Stefano Brivio
e8ac8a3b7c test/perf: Use CPU frequency from /proc/cpuinfo instead of cpupower(1)
Get it to work also in nested virtualisation environments.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2021-10-19 09:25:29 +02:00
Stefano Brivio
061519b562 test: Add CI/demo scripts
Not really quick, definitely dirty.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2021-09-27 15:10:35 +02:00