跳至主要內容

BCC

BCC

目录

用例 (见ob软件版本)

项目案例

编译后，可以在 /usr/share/bcc/ 里找到

  • /usr/share/bcc
    • /examples
      • hello_world.py
      • /tracing
        • (非常多的示例python)
    • /introspection
    • /man
    • /tools
      • (非常多的工具)

其实哪怕不整体编译，在源码那个地方要什么工具就编译什么工具也是可以的。特别是python，例如直接运行 python3 ./hello_world.py 就行

Examples

  • examples/tracing/bitehist.py: Block I/O size histogram. Examples. 块 I/O 大小直方图
  • examples/tracing/disksnoop.py: Trace block device I/O latency. Examples. 跟踪块设备 I/O 延迟
  • examples/hello_world.py: Prints "Hello, World!" for new processes. 用新流程打印“Hello，World！
  • examples/tracing/mysqld_query.py: Trace MySQL server queries using USDT probes. Examples. 使用 USDT 探针跟踪 MySQL 服务器查询
  • examples/tracing/nodejs_http_server.py: Trace Node.js HTTP server requests using USDT probes. Examples. 使用 USDT 探针跟踪 Node.js HTTP 服务器请求
  • examples/tracing/stacksnoop: Trace a kernel function and print all kernel stack traces. Examples. 跟踪内核函数并打印所有内核堆栈跟踪
  • tools/statsnoop: Trace stat() syscalls. Examples. 跟踪 stat() 系统调用
  • examples/tracing/task_switch.py: Count task switches with from and to PIDs. 使用起始和终止 PID 来计算任务切换
  • examples/tracing/tcpv4connect.py: Trace TCP IPv4 active connections. Examples. 跟踪 TCP IPv4 活动连接
  • examples/tracing/trace_fields.py: Simple example of printing fields from traced events. 打印跟踪事件字段的简单示例
  • examples/tracing/undump.py: Dump UNIX socket packets. Examples 转储 UNIX 套接字数据包
  • examples/tracing/urandomread.py: A kernel tracepoint example, which traces random:urandom_read. Examples. 内核跟踪点示例
  • examples/tracing/vfsreadlat.py examples/tracing/vfsreadlat.c: VFS read latency distribution. Examples. VFS 读取延迟分布
  • examples/tracing/kvm_hypercall.py: Conditional static kernel tracepoints for KVM entry, exit and hypercall Examples. KVM 进入、退出和超级调用示例的条件静态内核跟踪点。

Tools

  • tools/argdist: Display function parameter values as a histogram or frequency count. Examples. 将函数参数值显示为直方图或频率计数
  • tools/bashreadline: Print entered bash commands system wide. Examples. 在系统范围内打印输入的 bash 命令
  • tools/bindsnoop: Trace IPv4 and IPv6 bind() system calls (bind()). Examples. 跟踪 IPv4 和 IPv6 bind() 系统调用 (bind())
  • tools/biolatency: Summarize block device I/O latency as a histogram. Examples. 将块设备 I/O 延迟总结为直方图
  • tools/biotop: Top for disks: Summarize block device I/O by process. Examples. 磁盘顶部：按进程汇总块设备 I/O
  • tools/biopattern: Identify random/sequential disk access patterns. Examples. 识别随机/顺序磁盘访问模式
  • tools/biosnoop: Trace block device I/O with PID and latency. Examples. 使用 PID 和延迟跟踪块设备 I/O
  • tools/bitesize: Show per process I/O size histogram. Examples. 显示每个进程 I/O 大小直方图
  • tools/bpflist: Display processes with active BPF programs and maps. Examples. 显示具有活动 BPF 程序和映射的进程
  • tools/btrfsdist: Summarize btrfs operation latency distribution as a histogram. Examples. 将 btrfs 操作延迟分布总结为直方图
  • tools/btrfsslower: Trace slow btrfs operations. Examples. 跟踪缓慢的 btrfs 操作
  • tools/capable: Trace security capability checks. Examples. 跟踪安全能力检查
  • tools/cachestat: Trace page cache hit/miss ratio. Examples. 跟踪页面缓存命中/未命中率
  • tools/cachetop: Trace page cache hit/miss ratio by processes. Examples. 按进程跟踪页面缓存命中/未命中率
  • tools/compactsnoop: Trace compact zone events with PID and latency. Examples. 使用 PID 和延迟跟踪紧凑区域事件
  • tools/cpudist: Summarize on- and off-CPU time per task as a histogram. Examples 将每个任务的 CPU 开启和关闭时间总结为直方图
  • tools/cpuunclaimed: Sample CPU run queues and calculate unclaimed idle CPU. Examples 采样 CPU 运行队列并计算无人认领的空闲 CPU
  • tools/criticalstat: Trace and report long atomic critical sections in the kernel. Examples 跟踪并报告内核中的长原子关键部分
  • tools/dbslower: Trace MySQL/PostgreSQL queries slower than a threshold. Examples. 跟踪慢于阈值的 MySQL/PostgreSQL 查询
  • tools/dbstat: Summarize MySQL/PostgreSQL query latency as a histogram. Examples. 将 MySQL/PostgreSQL 查询延迟总结为直方图
  • tools/dcsnoop: Trace directory entry cache (dcache) lookups. Examples. 跟踪目录条目缓存 (dcache) 查找
  • tools/dcstat: Directory entry cache (dcache) stats. Examples. 目录条目缓存 (dcache) 统计信息
  • tools/deadlock: Detect potential deadlocks on a running process. Examples. 检测正在运行的进程上潜在的死锁
  • tools/dirtop: File reads and writes by directory. Top for directories. Examples. 按目录进行文件读写。目录顶部
  • tools/drsnoop: Trace direct reclaim events with PID and latency. Examples. 使用 PID 和延迟跟踪直接回收事件
  • tools/execsnoop: Trace new processes via exec() syscalls. Examples. 通过 exec() 系统调用跟踪新进程
  • tools/exitsnoop: Trace process termination (exit and fatal signals). Examples. 跟踪进程终止（退出和致命信号）
  • tools/ext4dist: Summarize ext4 operation latency distribution as a histogram. Examples. 将 ext4 操作延迟分布总结为直方图
  • tools/ext4slower: Trace slow ext4 operations. Examples. 跟踪缓慢的 ext4 操作
  • tools/filelife: Trace the lifespan of short-lived files. Examples. 跟踪短期文件的生命周期
  • tools/filegone: Trace why file gone (deleted or renamed). Examples. 跟踪文件消失的原因（删除或重命名）
  • tools/fileslower: Trace slow synchronous file reads and writes. Examples. 跟踪缓慢的同步文件读取和写入
  • tools/filetop: File reads and writes by filename and process. Top for files. Examples. 按文件名和进程读取和写入文件。顶部为文件
  • tools/funccount: Count kernel function calls. Examples. 计算内核函数调用次数
  • tools/funcinterval: Time interval between the same function as a histogram. Examples. 作为直方图的同一函数之间的时间间隔
  • tools/funclatency: Time functions and show their latency distribution. Examples. 时间函数并显示其延迟分布
  • tools/funcslower: Trace slow kernel or user function calls. Examples. 跟踪缓慢的内核或用户函数调用
  • tools/gethostlatency: Show latency for getaddrinfo/gethostbyname[2] calls. Examples. 显示 getaddrinfo/gethostbyname[2] 调用的延迟
  • tools/hardirqs: Measure hard IRQ (hard interrupt) event time. Examples. 测量硬IRQ（硬中断）事件时间
  • tools/inject: Targeted error injection with call chain and predicates Examples. 带有调用链和谓词示例的有针对性的错误注入
  • tools/killsnoop: Trace signals issued by the kill() syscall. Examples. 由kill()系统调用发出的跟踪信号
  • tools/klockstat: Traces kernel mutex lock events and display locks statistics. Examples. 跟踪内核互斥锁定事件并显示锁定统计信息
  • tools/kvmexit: Display the exit_reason and its statistics of each vm exit. Examples. 显示每个虚拟机退出的 exit_reason 及其统计信息
  • tools/llcstat: Summarize CPU cache references and misses by process. Examples. 按进程汇总 CPU 缓存引用和未命中情况
  • tools/mdflush: Trace md flush events. Examples. 跟踪 md 刷新事件
  • tools/memleak: Display outstanding memory allocations to find memory leaks. Examples. 显示未完成的内存分配以查找内存泄漏
  • tools/mountsnoop: Trace mount and umount syscalls system-wide. Examples. 跟踪系统范围内的挂载和卸载系统调用
  • tools/mysqld_qslower: Trace MySQL server queries slower than a threshold. Examples. 跟踪慢于阈值的 MySQL 服务器查询
  • tools/netqtop tools/netqtop.c: Trace and display packets distribution on NIC queues. Examples. 跟踪并显示 NIC 队列上的数据包分布
  • tools/nfsslower: Trace slow NFS operations. Examples. 跟踪缓慢的 NFS 操作
  • tools/nfsdist: Summarize NFS operation latency distribution as a histogram. Examples. 将 NFS 操作延迟分布总结为直方图
  • tools/offcputime: Summarize off-CPU time by kernel stack trace. Examples. 通过内核堆栈跟踪汇总脱离 CPU 的时间
  • tools/offwaketime: Summarize blocked time by kernel off-CPU stack and waker stack. Examples.
  • tools/oomkill: Trace the out-of-memory (OOM) killer. Examples.
  • tools/opensnoop: Trace open() syscalls. Examples.
  • tools/pidpersec: Count new processes (via fork). Examples.
  • tools/ppchcalls: Summarize ppc hcall counts and latencies. Examples.
  • tools/profile: Profile CPU usage by sampling stack traces at a timed interval. Examples.
  • tools/readahead: Show performance of read-ahead cache Examples.
  • tools/reset-trace: Reset the state of tracing. Maintenance tool only. Examples.
  • tools/runqlat: Run queue (scheduler) latency as a histogram. Examples.
  • tools/runqlen: Run queue length as a histogram. Examples.
  • tools/runqslower: Trace long process scheduling delays. Examples.
  • tools/shmsnoop: Trace System V shared memory syscalls. Examples.
  • tools/sofdsnoop: Trace FDs passed through unix sockets. Examples.
  • tools/slabratetop: Kernel SLAB/SLUB memory cache allocation rate top. Examples.
  • tools/softirqs: Measure soft IRQ (soft interrupt) event time. Examples.
  • tools/solisten: Trace TCP socket listen. Examples.
  • tools/sslsniff: Sniff OpenSSL written and readed data. Examples.
  • tools/stackcount: Count kernel function calls and their stack traces. Examples.
  • tools/syncsnoop: Trace sync() syscall. Examples.
  • tools/syscount: Summarize syscall counts and latencies. Examples.
  • tools/tcpaccept: Trace TCP passive connections (accept()). Examples.
  • tools/tcpconnect: Trace TCP active connections (connect()). Examples.
  • tools/tcpconnlat: Trace TCP active connection latency (connect()). Examples.
  • tools/tcpdrop: Trace kernel-based TCP packet drops with details. Examples.
  • tools/tcplife: Trace TCP sessions and summarize lifespan. Examples.
  • tools/tcpretrans: Trace TCP retransmits and TLPs. Examples.
  • tools/tcprtt: Trace TCP round trip time. Examples.
  • tools/tcpstates: Trace TCP session state changes with durations. Examples.
  • tools/tcpsubnet: Summarize and aggregate TCP send by subnet. Examples.
  • tools/tcpsynbl: Show TCP SYN backlog. Examples.
  • tools/tcptop: Summarize TCP send/recv throughput by host. Top for TCP. Examples.
  • tools/tcptracer: Trace TCP established connections (connect(), accept(), close()). Examples.
  • tools/tcpcong: Trace TCP socket congestion control status duration. Examples.
  • tools/threadsnoop: List new thread creation. Examples.
  • tools/tplist: Display kernel tracepoints or USDT probes and their formats. Examples.
  • tools/trace: Trace arbitrary functions, with filters. Examples.
  • tools/ttysnoop: Watch live output from a tty or pts device. Examples.
  • tools/ucalls: Summarize method calls or Linux syscalls in high-level languages. Examples.
  • tools/uflow: Print a method flow graph in high-level languages. Examples.
  • tools/ugc: Trace garbage collection events in high-level languages. Examples.
  • tools/uobjnew: Summarize object allocation events by object type and number of bytes allocated. Examples.
  • tools/ustat: Collect events such as GCs, thread creations, object allocations, exceptions and more in high-level languages. Examples.
  • tools/uthreads: Trace thread creation events in Java and raw pthreads. Examples.
  • tools/vfscount: Count VFS calls. Examples.
  • tools/vfsstat: Count some VFS calls, with column output. Examples.
  • tools/virtiostat: Show VIRTIO device IO statistics. Examples.
  • tools/wakeuptime: Summarize sleep to wakeup time by waker kernel stack. Examples.
  • tools/xfsdist: Summarize XFS operation latency distribution as a histogram. Examples.
  • tools/xfsslower: Trace slow XFS operations. Examples.
  • tools/zfsdist: Summarize ZFS operation latency distribution as a histogram. Examples.
  • tools/zfsslower: Trace slow ZFS operations. Examples.
链接到当前文件 0
没有文件链接到当前文件