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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-02-02 23:30:40 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-03 14:03:53 +0100
commit08a06b83ff8b2779289f733348c669f31cb65d51 (patch)
treec8d5c13361ff9aa8e45cd660fbcad264b8310100 /firmware
parenttrace: Change struct trace_event callbacks parameter list (diff)
downloadlinux-08a06b83ff8b2779289f733348c669f31cb65d51.tar.xz
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blkftrace: binary tracing, synthesizing old format
Impact: new feature With this and a blkrawverify modified not to verify the sequence numbers we can start using the userspace tools to verify that the data produced with the ftrace plugin works as expected. Example: [root@f10-1 ~]# echo 1 > /sys/block/sda/sda1/trace/enable [root@f10-1 ~]# echo bin > /d/tracing/trace_options [root@f10-1 ~]# echo blk > /d/tracing/current_tracer [root@f10-1 ~]# cat /d/tracing/trace_pipe > sda1.blktrace.0 ^C [root@f10-1 ~]# ./blkrawverify --noseq sda1 Verifying sda1 CPU 0 Wrote output to sda1.verify.out [root@f10-1 ~]# cat sda1.verify.out --------------- Verifying sda1 --------------------- Summary for cpu 0: 1349 valid + 0 invalid (100.0%) processed [root@f10-1 ~]# Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'firmware')
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