39 lines
776 B
Plaintext
39 lines
776 B
Plaintext
#!/usr/bin/env bpftrace
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BEGIN
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{
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printf("开始统计 kvstore 进程的 tcp_rcv_established 调用次数...\n");
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printf("每 5 秒打印一次统计，Ctrl-C 退出\n\n");
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// 统计变量
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@enter = 0;
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@exit = 0;
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}
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interval:s:5
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{
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time("%H:%M:%S");
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printf(" tcp_rcv_established 调用次数: %10d\n", @enter);
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printf(" tcp_rcv_established ret 调用次数: %10d\n", @exit);
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// 可选：如果想每轮清零统计，取消下面注释
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// clear(@enter);
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// clear(@exit);
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}
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kprobe:tcp_rcv_established
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{
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@enter++;
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}
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kretprobe:tcp_rcv_established
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{
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@exit++;
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}
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END
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{
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printf("\n最终统计：\n");
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printf("tcp_rcv_established : %d 次\n", @enter);
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printf("tcp_rcv_established ret: %d 次\n", @exit);
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} |