1. 06 Jun, 2009 11 commits
    • Ingo Molnar's avatar
      perf_counter tools: Move from Documentation/perf_counter/ to tools/perf/ · 86470930
      Ingo Molnar authored
      Several people have suggested that 'perf' has become a full-fledged
      tool that should be moved out of Documentation/. Move it to the
      (new) tools/ directory.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      86470930
    • Ingo Molnar's avatar
      Merge branch 'linus' into perfcounters/core · 75b50322
      Ingo Molnar authored
      Merge reason: Pick up the latest fixes before the -v8 perfcounters
      	      release.
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      75b50322
    • Ingo Molnar's avatar
      perf_counter tools: Add 'perf annotate' feature · 0b73da3f
      Ingo Molnar authored
      Add new perf sub-command to display annotated source code:
      
       $ perf annotate decode_tree_entry
      
      ------------------------------------------------
       Percent |	Source code & Disassembly of /home/mingo/git/git
      ------------------------------------------------
               :
               :	/home/mingo/git/git:     file format elf64-x86-64
               :
               :
               :	Disassembly of section .text:
               :
               :	00000000004a0da0 <decode_tree_entry>:
               :		*modep = mode;
               :		return str;
               :	}
               :
               :	static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
               :	{
          3.82 :	  4a0da0:	41 54                	push   %r12
               :		const char *path;
               :		unsigned int mode, len;
               :
               :		if (size < 24 || buf[size - 21])
          0.17 :	  4a0da2:	48 83 fa 17          	cmp    $0x17,%rdx
               :		*modep = mode;
               :		return str;
               :	}
               :
               :	static void decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size)
               :	{
          0.00 :	  4a0da6:	49 89 fc             	mov    %rdi,%r12
          0.00 :	  4a0da9:	55                   	push   %rbp
          3.37 :	  4a0daa:	53                   	push   %rbx
               :		const char *path;
               :		unsigned int mode, len;
               :
               :		if (size < 24 || buf[size - 21])
          0.08 :	  4a0dab:	76 73                	jbe    4a0e20 <decode_tree_entry+0x80>
          0.00 :	  4a0dad:	80 7c 16 eb 00       	cmpb   $0x0,-0x15(%rsi,%rdx,1)
          3.48 :	  4a0db2:	75 6c                	jne    4a0e20 <decode_tree_entry+0x80>
               :	static const char *get_mode(const char *str, unsigned int *modep)
               :	{
               :		unsigned char c;
               :		unsigned int mode = 0;
               :
               :		if (*str == ' ')
          1.94 :	  4a0db4:	0f b6 06             	movzbl (%rsi),%eax
          0.39 :	  4a0db7:	3c 20                	cmp    $0x20,%al
          0.00 :	  4a0db9:	74 65                	je     4a0e20 <decode_tree_entry+0x80>
               :			return NULL;
               :
               :		while ((c = *str++) != ' ') {
          0.06 :	  4a0dbb:	89 c2                	mov    %eax,%edx
               :			if (c < '0' || c > '7')
          1.99 :	  4a0dbd:	31 ed                	xor    %ebp,%ebp
               :		unsigned int mode = 0;
               :
               :		if (*str == ' ')
               :			return NULL;
               :
               :		while ((c = *str++) != ' ') {
          1.74 :	  4a0dbf:	48 8d 5e 01          	lea    0x1(%rsi),%rbx
               :			if (c < '0' || c > '7')
          0.00 :	  4a0dc3:	8d 42 d0             	lea    -0x30(%rdx),%eax
          0.17 :	  4a0dc6:	3c 07                	cmp    $0x7,%al
          0.00 :	  4a0dc8:	76 0d                	jbe    4a0dd7 <decode_tree_entry+0x37>
          0.00 :	  4a0dca:	eb 54                	jmp    4a0e20 <decode_tree_entry+0x80>
          0.00 :	  4a0dcc:	0f 1f 40 00          	nopl   0x0(%rax)
         16.57 :	  4a0dd0:	8d 42 d0             	lea    -0x30(%rdx),%eax
          0.14 :	  4a0dd3:	3c 07                	cmp    $0x7,%al
          0.00 :	  4a0dd5:	77 49                	ja     4a0e20 <decode_tree_entry+0x80>
               :				return NULL;
               :			mode = (mode << 3) + (c - '0');
          3.12 :	  4a0dd7:	0f b6 c2             	movzbl %dl,%eax
               :		unsigned int mode = 0;
               :
               :		if (*str == ' ')
               :			return NULL;
               :
               :		while ((c = *str++) != ' ') {
          0.00 :	  4a0dda:	0f b6 13             	movzbl (%rbx),%edx
         16.74 :	  4a0ddd:	48 83 c3 01          	add    $0x1,%rbx
               :			if (c < '0' || c > '7')
               :				return NULL;
               :			mode = (mode << 3) + (c - '0');
      
      The first column is the percentage of samples that arrived on that
      particular line - relative to the total cost of the function.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      0b73da3f
    • Ingo Molnar's avatar
      perf_counter tools: Prepare for 'perf annotate' · 8035e428
      Ingo Molnar authored
      Prepare for the 'perf annotate' implementation by splitting off
      builtin-annotate.c from builtin-report.c.
      
      ( We keep this commit separate to ease the later librarization
        of the facilities that perf-report and perf-annotate shares. )
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      8035e428
    • Ingo Molnar's avatar
      perf_counter tools: Tidy up manpage details · 6e6b754f
      Ingo Molnar authored
      Also fix a misalignment in usage string printing.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      6e6b754f
    • Ingo Molnar's avatar
      perf_counter tools: Uniform help printouts · 502fc5c7
      Ingo Molnar authored
      Also add perf list to command-list.txt.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      502fc5c7
    • Thomas Gleixner's avatar
      perf_counter tools: Add help for perf list · 386b05e3
      Thomas Gleixner authored
      Also update other areas of the help texts.
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      386b05e3
    • Ingo Molnar's avatar
      perf_counter tools: Fix cache-event printout · 8faf3b54
      Ingo Molnar authored
      Also standardize the cache printout (so that it can be pasted back
      into the command) and sort out the aliases.
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
      Cc: Marcelo Tosatti <mtosatti@redhat.com>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      8faf3b54
    • Thomas Gleixner's avatar
      perf_counter tools: Add 'perf list' to list available events · 86847b62
      Thomas Gleixner authored
      perf list: List all the available event types which can be used in
      -e (--event) options.
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      86847b62
    • Ingo Molnar's avatar
      perf_counter: Implement generalized cache event types · 8326f44d
      Ingo Molnar authored
      Extend generic event enumeration with the PERF_TYPE_HW_CACHE
      method.
      
      This is a 3-dimensional space:
      
             { L1-D, L1-I, L2, ITLB, DTLB, BPU } x
             { load, store, prefetch } x
             { accesses, misses }
      
      User-space passes in the 3 coordinates and the kernel provides
      a counter. (if the hardware supports that type and if the
      combination makes sense.)
      
      Combinations that make no sense produce a -EINVAL.
      Combinations that are not supported by the hardware produce -ENOTSUP.
      
      Extend the tools to deal with this, and rewrite the event symbol
      parsing code with various popular aliases for the units and
      access methods above. So 'l1-cache-miss' and 'l1d-read-ops' are
      both valid aliases.
      
      ( x86 is supported for now, with the Nehalem event table filled in,
        and with Core2 and Atom having placeholder tables. )
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
      Cc: Marcelo Tosatti <mtosatti@redhat.com>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      8326f44d
    • Ingo Molnar's avatar
      perf_counter: Separate out attr->type from attr->config · a21ca2ca
      Ingo Molnar authored
      Counter type is a frequently used value and we do a lot of
      bit juggling by encoding and decoding it from attr->config.
      
      Clean this up by creating a separate attr->type field.
      
      Also clean up the various similarly complex user-space bits
      all around counter attribute management.
      
      The net improvement is significant, and it will be easier
      to add a new major type (which is what triggered this cleanup).
      
      (This changes the ABI, all tools are adapted.)
      (PowerPC build-tested.)
      
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
      Cc: Marcelo Tosatti <mtosatti@redhat.com>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      a21ca2ca
  2. 05 Jun, 2009 16 commits
  3. 04 Jun, 2009 13 commits