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|
#!/bin/sh
# PCP QA Test No. 1444
# Exercise the BPF PMDA CO-RE statsnoop module - install, remove and values.
#
# Copyright (c) 2022 Sohaib Mohamed.
#
seq=`basename $0`
echo "QA output created by $seq"
. ./common.bpf
_pmdabpf_check
_pmdabpf_require_kernel_version 5 0
_pmdabpf_require_libbpf_version 0 7
status=1 # failure is the default!
signal=$PCP_BINADM_DIR/pmsignal
cat <<EOF >$tmp.conf
# Installed by PCP QA test $seq on `date`
[statsnoop.so]
enabled=true
EOF
_pmdabpf_tryload $tmp.conf
_cleanup()
{
cd $here
_pmdabpf_cleanup
$sudo rm -rf $tmp $tmp.*
}
_prepare_pmda bpf
trap "_cleanup; exit \$status" 0 1 2 3 15
_stop_auto_restart pmcd
# real QA test starts here
_pmdabpf_install $tmp.conf
_pmdabpf_wait_for_metric
# Generate system activity for the CO-RE statsnoop module;
# Note: pminfo, tee and the shell itself issue stat syscalls
# which can peturb the results here (see comm filter below).
touch /tmp/test-file && stat /tmp/test-file 1> /dev/null
echo "=== report metric values for comm ===" | tee -a $seq_full
pminfo -dfmtT bpf.statsnoop.comm 2>&1 | tee -a $seq_full \
| sed \
-e 's/"pmcd"/"stat"/g' \
-e 's/"sed"/"stat"/g' \
-e 's/"tee"/"stat"/g' \
-e 's/"1444"/"stat"/g' \
-e 's/"pminfo"/"stat"/g' \
-e 's/".\/pminfo"/"stat"/g' \
-e 's/"pmprobe"/"stat"/g' \
-e 's/".\/pmprobe"/"stat"/g' \
| _value_filter_exact '"stat"'
echo "=== report metric values for err ===" | tee -a $seq_full
pminfo -dfmtT bpf.statsnoop.err 2>&1 | tee -a $seq_full \
| _value_filter_any
echo "=== report metric values for path ===" | tee -a $seq_full
pminfo -dfmtT bpf.statsnoop.path 2>&1 | tee -a $seq_full \
| _value_filter_any
echo "=== report metric values for pid ===" | tee -a $seq_full
pminfo -dfmtT bpf.statsnoop.pid 2>&1 | tee -a $seq_full \
| _value_filter_nonzero
echo "=== report metric values for ret ===" | tee -a $seq_full
pminfo -dfmtT bpf.statsnoop.ret 2>&1 | tee -a $seq_full \
| _value_filter_any
_pmdabpf_remove
status=0
exit
|
