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Commit e33e0a43 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

perf_counter tools: add 'perf record' command 



Move perf-record.c into the perf suite of commands.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 1d8c8b20

Documentation/perf_counter/Documentation/perf-record.txt

0 → 100644
+63 −0
Original line number Diff line number Diff line 
perf-record(1)

==========



NAME

----

perf-record - Run a command and record its profile into output.perf



SYNOPSIS

--------

[verse]

'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>



DESCRIPTION

-----------

This command runs a command and gathers a performance counter profile

from it, into output.perf - without displaying anything.



This file can then be inspected later on, using 'perf report'.





OPTIONS

-------

<command>...::

	Any command you can specify in a shell.



-e::

--event=::

                             0:0: cpu-cycles          

                             0:0: cycles              

                             0:1: instructions        

                             0:2: cache-references    

                             0:3: cache-misses        

                             0:4: branch-instructions 

                             0:4: branches            

                             0:5: branch-misses       

                             0:6: bus-cycles          

                             1:0: cpu-clock           

                             1:1: task-clock          

                             1:2: page-faults         

                             1:2: faults              

                             1:5: minor-faults        

                             1:6: major-faults        

                             1:3: context-switches    

                             1:3: cs                  

                             1:4: cpu-migrations      

                             1:4: migrations          

                           rNNN: raw PMU events (eventsel+umask)



-a::

        system-wide collection



-l::

        scale counter values



Configuration

-------------



EXAMPLES

--------



SEE ALSO

--------

linkperf:git-stat[1]

Documentation/perf_counter/Makefile

+1 −0
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@@ -309,6 +309,7 @@ LIB_OBJS += usage.o 
LIB_OBJS += wrapper.o



BUILTIN_OBJS += builtin-help.o

BUILTIN_OBJS += builtin-record.o

BUILTIN_OBJS += builtin-stat.o

BUILTIN_OBJS += builtin-top.o

Documentation/perf_counter/perf-record.c→Documentation/perf_counter/builtin-record.c

+3 −27
Original line number Diff line number Diff line
@@ -81,16 +81,12 @@ 
	(void) (&_min1 == &_min2);		\

	_min1 < _min2 ? _min1 : _min2; })



asmlinkage int sys_perf_counter_open(

extern asmlinkage int sys_perf_counter_open(

        struct perf_counter_hw_event    *hw_event_uptr          __user,

        pid_t                           pid,

        int                             cpu,

        int                             group_fd,

        unsigned long                   flags)

{

        return syscall(

                __NR_perf_counter_open, hw_event_uptr, pid, cpu, group_fd, flags);

}

        unsigned long                   flags);



#define MAX_COUNTERS			64

#define MAX_NR_CPUS			256
@@ -119,26 +115,6 @@ const unsigned int default_count[] = { 
	  10000,

};



static char *hw_event_names[] = {

	"CPU cycles",

	"instructions",

	"cache references",

	"cache misses",

	"branches",

	"branch misses",

	"bus cycles",

};



static char *sw_event_names[] = {

	"cpu clock ticks",

	"task clock ticks",

	"pagefaults",

	"context switches",

	"CPU migrations",

	"minor faults",

	"major faults",

};



struct event_symbol {

	__u64 event;

	char *symbol;
@@ -414,7 +390,7 @@ static void sigchld_handler(int sig) 
		done = 1;

}



int main(int argc, char *argv[])

int cmd_record(int argc, const char **argv)

{

	struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS];

	struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS];

Documentation/perf_counter/builtin.h

+2 −1
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ extern void prune_packed_objects(int); 
extern int read_line_with_nul(char *buf, int size, FILE *file);

extern int check_pager_config(const char *cmd);



extern int cmd_top(int argc, const char **argv, const char *prefix);

extern int cmd_record(int argc, const char **argv, const char *prefix);

extern int cmd_stat(int argc, const char **argv, const char *prefix);

extern int cmd_top(int argc, const char **argv, const char *prefix);

#endif

Documentation/perf_counter/command-list.txt

+2 −1
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# List of known perf commands.

# command name				category [deprecated] [common]

perf-top                                mainporcelain common

perf-record                             mainporcelain common

perf-stat                               mainporcelain common

perf-top                                mainporcelain common