perf-lock(1) ============ NAME ---- perf-lock - Analyze lock events SYNOPSIS -------- [verse] 'perf lock' {record|report|script|info} DESCRIPTION ----------- You can analyze various lock behaviours and statistics with this 'perf lock' command. 'perf lock record ' records lock events between start and end . And this command produces the file "perf.data" which contains tracing results of lock events. 'perf lock report' reports statistical data. 'perf lock script' shows raw lock events. 'perf lock info' shows metadata like threads or addresses of lock instances. COMMON OPTIONS -------------- -i:: --input=:: Input file name. (default: perf.data unless stdin is a fifo) -v:: --verbose:: Be more verbose (show symbol address, etc). -D:: --dump-raw-trace:: Dump raw trace in ASCII. REPORT OPTIONS -------------- -k:: --key=:: Sorting key. Possible values: acquired (default), contended, avg_wait, wait_total, wait_max, wait_min. INFO OPTIONS ------------ -t:: --threads:: dump thread list in perf.data -m:: --map:: dump map of lock instances (address:name table) SEE ALSO -------- linkperf:perf[1] ck net-next plumbingsTobias Klauser
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authorJiri Slaby <jslaby@suse.cz>2017-01-18 14:29:21 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-19 08:39:44 +0100
commitb5b46c4740aed1538544f0fa849c5b76c7823469 (patch)
tree125e7aced4835bad6f6a0c0d02d012f333caf922 /include/soc/nps
parentfa19a769f82fb9a5ca000b83cacd13fcaeda51ac (diff)
objtool: Fix IRET's opcode
The IRET opcode is 0xcf according to the Intel manual and also to objdump of my vmlinux: 1ea8: 48 cf iretq Fix the opcode in arch_decode_instruction(). The previous value (0xc5) seems to correspond to LDS. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170118132921.19319-1-jslaby@suse.cz Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/soc/nps')