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Add support for recording named runtime with rr

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The traces of the named process are stored in the directory
$system_test/nsX/named-Y/.

(cherry picked from commit e088e8a992)
This commit is contained in:
Michal Nowak 2023-11-08 19:21:30 +01:00
parent b83b9dc2c6
commit 72760c0c2b
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2 changed files with 11 additions and 0 deletions
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8
bin/tests/system/README
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@ -710,6 +710,14 @@ or SEQUENTIAL variables.
need to edit multiple files to add a test.)
rr
---
When running system tests, named can be run under the rr tool. rr records a
trace to the $system_test/nsX/named-Y/ directory, which can be later used to
replay named. To enable this, execute start.pl with the USE_RR environment
variable set.
Developer Notes for pytest runner
===

3
bin/tests/system/start.pl
View file

@ -232,6 +232,9 @@ sub construct_ns_command {
if ($taskset) {
$command = "taskset $taskset $NAMED ";
} elsif ($ENV{'USE_RR'}) {
$ENV{'_RR_TRACE_DIR'} = ".";
$command = "rr record --chaos $NAMED ";
} else {
$command = "$NAMED ";
}