Fedor 14 下 安装最新的2.6.38 perf成功

被折腾惨了，留个纪念.



方法： git 最新的Linus tree，tip tree也弄了 ，
然后在tools/perf下面install，提示几个包没有装，安装后
超级用户(一开始普通用户出错只是提醒我没有文件，但包已经安装了,后面才反应过来）
make -j install
出错
builtin-top.c:518:9: 错误：此函数中的‘counter’在使用前可能未初始化很可能是一个bug，跑进去将counter初始化为0.


 然后就成功了，奇怪的是普通用户键入perf还是老版本的，要使用绝对路径才行
[root@localhost perf]# make -j install
PERF_VERSION = 2.6.38.2972.gf88210.dirty
    GEN perf-archive
    CC perf.o
    CC builtin-top.o
    AR libperf.a
    LINK perf
install -d -m 755 '/root/bin'
install perf '/root/bin'
install -d -m 755 '/root/libexec/perf-core/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
install -d -m 755 '/root/libexec/perf-core/scripts/perl/bin'
install perf-archive -t '/root/libexec/perf-core'
install scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '/root/libexec/perf-core/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
install scripts/perl/*.pl -t '/root/libexec/perf-core/scripts/perl'
install scripts/perl/bin/* -t '/root/libexec/perf-core/scripts/perl/bin'
install -d -m 755 '/root/libexec/perf-core/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
install -d -m 755 '/root/libexec/perf-core/scripts/python/bin'
install scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '/root/libexec/perf-core/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
install scripts/python/*.py -t '/root/libexec/perf-core/scripts/python'
install scripts/python/bin/* -t '/root/libexec/perf-core/scripts/python/bin'
[root@localhost perf]# trace
命令未找到。
[root@localhost perf]# ls /root/bin/perf -l
-rwxr-xr-x. 1 root root 16195141  3月 26 23:09 /root/bin/perf
[root@localhost perf]# /root/bin/perf  --version
perf version 2.6.38.2972.gf88210.dirty
[root@localhost perf]# /root/bin/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 build-id cache.
   buildid-list    List the buildids in a perf.data file
   diff            Read two perf.data files and display the differential profile
   evlist          List the event names in a perf.data file
   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.