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Message-ID: <1335988003.13683.182.camel@twins>
Date: Wed, 02 May 2012 21:46:43 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Arnaldo Carvalho de Melo <acme@...radead.org>
Cc: Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
David Ahern <dsahern@...il.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Mike Galbraith <efault@....de>,
Namhyung Kim <namhyung@...il.com>,
Paul Mackerras <paulus@...ba.org>,
Stephane Eranian <eranian@...gle.com>, arnaldo.melo@...il.com,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 0/5] perf/annotate fixes and improvements
On Wed, 2012-05-02 at 16:42 -0300, Arnaldo Carvalho de Melo wrote:
>
> avtab_search_node
> push %rbp
> mov %rsp,%rbp
> → callq mcount
> movzwl 0x6(%rsi),%edx
> and $0x7fff,%dx
> test %rdi,%rdi
> ┌─────↓ jne 20
> │ 17: xor %eax,%eax
> │ 19: leaveq
> │ ← retq
> │ nopl 0x0(%rax,%rax,1)
> └─→20: mov (%rdi),%rax
> test %rax,%rax
> ↑ je 17
> movzwl (%rsi),%ecx
> movzwl 0x2(%rsi),%r9d
> movzwl 0x4(%rsi),%r8d
> movzwl %cx,%esi
> movzwl %r9w,%r10d
> shl $0x9,%esi
> lea (%rsi,%r10,4),%esi
> lea (%r8,%rsi,1),%esi
> and 0x10(%rdi),%si
> movzwl %si,%esi
> mov (%rax,%rsi,8),%rax
> 1.63 test %rax,%rax
> ↑ je 19
> nopw 0x0(%rax,%rax,1)
> 4.88 60: cmp %cx,(%rax)
> ↓ jne 7e
> cmp %r9w,0x2(%rax)
> ↓ jne 7e
> cmp %r8w,0x4(%rax)
> ↓ jne 79
> test %dx,0x6(%rax)
> ↑ jne 19
> 79: cmp %r8w,0x4(%rax)
> 86.99 7e:↑ ja 17
> 3.25 mov 0x10(%rax),%rax
> 3.25 test %rax,%rax
> ↑ jne 60
> leaveq
> ← retq
>
> . Changes:
>
> - Don't show the big vertical line.
Not sure about that, loosing that separator makes it looks messy.
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