linux.git/tools/perf/util/map.c, branch v2.6.35

perf session: Embed the host machine data on perf_session

2010-05-10T00:14:52+00:00

We have just one host on a given session, and that is the most common
setup right now, so embed a ->host_machine struct machine instance
directly in the perf_session class, check if we're looking for it before
going to the rb_tree.

This also fixes a problem found when we try to process old perf.data
files where we didn't have MMAP events for the kernel and modules and
thus don't create the kernel maps, do it in event__preprocess_sample if
it wasn't already.

Reported-by: Ingo Molnar 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Tom Zanussi 
Cc: Zhang, Yanmin 
LKML-Reference: 
Signed-off-by: Arnaldo Carvalho de Melo

perf machine: Adopt some map_groups functions

2010-04-28T00:21:18+00:00

Those functions operated on members now grouped in 'struct machine', so
move those methods to this new class.

The changes made to 'perf probe' shows that using this abstraction
inserting probes on guests almost got supported for free.

Cc: Avi Kivity 
Cc: Frédéric Weisbecker 
Cc: Masami Hiramatsu 
Cc: Mike Galbraith 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Zhang, Yanmin 
LKML-Reference: 
Signed-off-by: Arnaldo Carvalho de Melo

perf machine: Pass buffer size to machine__mmap_name

2010-04-28T00:19:05+00:00

Don't blindly assume that the size of the buffer is enough, use
snprintf.

Cc: Avi Kivity 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Zhang, Yanmin 
LKML-Reference: 
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Rename "kernel_info" to "machine"

2010-04-28T00:17:50+00:00

struct kernel_info and kerninfo__ are too vague, what they really
describe are machines, virtual ones or hosts.

There are more changes to introduce helpers to shorten function calls
and to make more clear what is really being done, but I left that for
subsequent patches.

Cc: Avi Kivity 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Cc: Zhang, Yanmin 
LKML-Reference: 
Signed-off-by: Arnaldo Carvalho de Melo

perf: 'perf kvm' tool for monitoring guest performance from host

2010-04-19T09:37:24+00:00

Here is the patch of userspace perf tool.

Signed-off-by: Zhang Yanmin 
Signed-off-by: Avi Kivity

perf symbols: map_groups__find_symbol must return the map too

2010-04-02T19:27:43+00:00

Tools need to know from which map in the map_group a symbol was resolved
to, so that, for isntance, we can annotate kernel modules symbols by
getting its precise name, etc.

Also add the _by_name variants for completeness.

Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Signed-off-by: Arnaldo Carvalho de Melo

perf symbols: Move more map_groups methods to map.c

2010-04-02T19:27:39+00:00

While writing a standalone test app that uses the symbol system to
find kernel space symbols I noticed these also need to be moved.

Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
Signed-off-by: Arnaldo Carvalho de Melo

perf symbols: Move map related routines to map.c

2010-03-26T07:52:58+00:00

Thru series of refactorings functions were being renamed but not
moved to map.c to reduce patch noise, now lets have them in the
same place so that use of the symbol system by tools can be
constrained to building and linking fewer source files:
symbol.c, map.c and rbtree.c.

Signed-off-by: Arnaldo Carvalho de Melo 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <1269557941-15617-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar

perf symbols: Pass the mmap parameters instead of using mmap_event

2010-03-26T07:52:58+00:00

To reduce the coupling of the symbol system with the rest of
perf.

Signed-off-by: Arnaldo Carvalho de Melo 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <1269557941-15617-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar

perf symbols: Improve debugging information about symtab origins

2010-02-25T11:27:17+00:00

Be more clear about DSO long names and tell from which file
kernel symbols were obtained, all in --verbose mode:

    [root@mica ~]# perf report -v > /dev/null
    Looking at the vmlinux_path (5 entries long)
    Using /lib/modules/2.6.33-rc8-tip-00777-g0918527-dirty/build/vmlinux for symbols
    [root@mica ~]# mv /lib/modules/2.6.33-rc8-tip-00777-g0918527-dirty/build/vmlinux /tmp/dd
    [root@mica ~]# perf report -v > /dev/null
    Looking at the vmlinux_path (5 entries long)
    Using /proc/kallsyms for symbols
    [root@mica ~]#

Signed-off-by: Arnaldo Carvalho de Melo 
Cc: Frédéric Weisbecker 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Paul Mackerras 
LKML-Reference: <1266866139-6361-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar