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#!/bin/bash
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# <20><>ȡ sledgert <20><><EFBFBD>̵<EFBFBD> PID
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SLEDGERT_PID=$(pgrep sledgert)
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if [ -z "$SLEDGERT_PID" ]; then
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echo "sledgert process not found!"
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exit 1
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fi
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# <20><><EFBFBD><EFBFBD> perf <20><><EFBFBD><EFBFBD>
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sudo perf record -e cycles,instructions,cache-misses -p $SLEDGERT_PID -o perf.data &
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PERF_PID=$!
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# ȷ<><C8B7> perf <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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sleep 0.1
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# <20><>¼<EFBFBD><C2BC>ʼʱ<CABC>䣨<EFBFBD><E4A3A8><EFBFBD>룩
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start=$(date +%s%N)
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# <20><><EFBFBD><EFBFBD> HTTP <20><><EFBFBD><EFBFBD>
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echo "10" | http :10000
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# <20><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><E4A3A8><EFBFBD>룩
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end=$(date +%s%N)
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# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>룩
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elapsed=$((end - start))
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# ת<><D7AA>Ϊ<CEAA><CEA2>
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elapsed_us=$((elapsed / 1000))
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echo "Elapsed time: ${elapsed_us} ?s"
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# ת<><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>
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elapsed_ms=$((elapsed / 1000000))
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echo "Elapsed time: ${elapsed_ms} ms"
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# ֹͣ perf <20><><EFBFBD><EFBFBD>
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sudo pkill -INT -P $PERF_PID
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# <20>ȴ<EFBFBD> perf д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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wait $PERF_PID
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# <20><>ʾ perf <20><><EFBFBD><EFBFBD>
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sudo perf report -i perf.data
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