[홍상원] 프로젝트 소개문서

[qpakzk]

프로젝트 소개

1. 프로젝트명

linux kernel perf

perf

 usage: perf [--version] [--help] COMMAND [ARGS]

 The most commonly used perf commands are:
  annotate        Read perf.data (created by perf record) and display annotated code
  archive         Create archive with object files with build-ids found in perf.data file
  bench           General framework for benchmark suites
  buildid-cache   Manage <tt>build-id</tt> cache.
  buildid-list    List the buildids in a perf.data file
  diff            Read two perf.data files and display the differential profile
  inject          Filter to augment the events stream with additional information
  kmem            Tool to trace/measure kernel memory(slab) properties
  kvm             Tool to trace/measure kvm guest os
  list            List all symbolic event types
  lock            Analyze lock events
  probe           Define new dynamic tracepoints
  record          Run a command and record its profile into perf.data
  report          Read perf.data (created by perf record) and display the profile
  sched           Tool to trace/measure scheduler properties (latencies)
  script          Read perf.data (created by perf record) and display trace output
  stat            Run a command and gather performance counter statistics
  test            Runs sanity tests.
  timechart       Tool to visualize total system behavior during a workload
  top             System profiling tool.

 See 'perf help COMMAND' for more information on a specific command.

2. 분야 및 한 줄 정의

Perf는 Linux 성능 측정에서 CPU 하드웨어 차이를 추상화하고 간단한 명령 줄 인터페이스를 제공하는 Linux 기반 시스템용 프로파일러 도구이다.

3. 사용언어

C, C++ Assembly

4. 주요 feature 에 대한 시나리오 1 개

• perf list

5. 총라인수

16951483 lines

6. 디렉터리 구조

.
├── arch
├── block
├── certs
├── COPYING
├── CREDITS
├── crypto
├── Documentation
├── drivers
├── firmware
├── fs
├── include
├── init
├── ipc
├── Kbuild
├── Kconfig
├── kernel
├── lib
├── MAINTAINERS
├── Makefile
├── mm
├── net
├── README
├── samples
├── scripts
├── security
├── sound
├── tools
├── usr
└── virt