47 lines
1.1 KiB
Bash
47 lines
1.1 KiB
Bash
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target=$OVNI_TEST_BIN
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# We will set our own
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unset NOSV_CONFIG
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unset NOSV_CONFIG_OVERRIDE
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export NOSV_APPID=1
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# Small kernel ring size to make execution fast
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ringsize=$((64*1024))
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# Each CS event pair occupies 16 bytes.
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cspair=32
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# How many CS event pairs fit in the ring buffer?
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navail=$(($ringsize / $cspair))
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# For the test, write 8 times the ring buffer
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ncs=$((8 * $navail))
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# Flush the kernel after writing 1/4 of the ring buffer.
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nflush=$(($ringsize / $cspair / 4))
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cat > nosv.toml << EOF
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instrumentation.version = "ovni"
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ovni.level = 3
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ovni.kernel_ringsize = ${ringsize}
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EOF
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$target $ncs $nflush 2>&1 | tee err.log
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# Ensure no nOS-V warnings at runtime
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if grep -c "cannot enable kernel events" err.log; then
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echo "cannot enable kernel events in all threads" >&2
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exit 1
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fi
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# We need to sort the trace as it has unsorted regions
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ovnisort ovni
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# Ensure we have at least the number of context switches we caused, and ensure
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# the number of "in" and "out" events match.
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ovnitop ovni | awk '{n[$1] = $2} END { if (n["KCO"] != n["KCI"] || n["KCO"] < '$ncs') exit 1 }'
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# Run the emulator
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ovniemu -l ovni
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