fs_watcher:给block_rq_issue这个bpf程序添加了统计每个进程的I/O总大小的功能 #912
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表示特定进程自启动以来所执行的 I/O 操作的累计字节数。通过将每个 I/O 请求的字节数相加,能够得出进程在运行期间的总 I/O 使用情况。