add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/tools/perf/tests/attr/README
..
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@@ -49,10 +49,12 @@
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   perf record --call-graph fp kill              (test-record-graph-fp)
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   perf record --group -e cycles,instructions kill (test-record-group)
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   perf record -e '{cycles,instructions}' kill   (test-record-group1)
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+  perf record -e '{cycles/period=1/,instructions/period=2/}:S' kill (test-record-group2)
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   perf record -D kill                           (test-record-no-delay)
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   perf record -i kill                           (test-record-no-inherit)
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   perf record -n kill                           (test-record-no-samples)
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   perf record -c 100 -P kill                    (test-record-period)
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+  perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period)
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   perf record -R kill                           (test-record-raw)
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   perf stat -e cycles kill                      (test-stat-basic)
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   perf stat kill                                (test-stat-default)