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Kirill Smelkov
linux
Commits
b510b541
Commit
b510b541
authored
Apr 19, 2011
by
Dominik Brodowski
Browse files
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Browse Files
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Email Patches
Plain Diff
cpupowerutils: idle_monitor - ConfigStyle bugfixes
Signed-off-by:
Dominik Brodowski
<
linux@dominikbrodowski.net
>
parent
6c2b8185
Changes
6
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Showing
6 changed files
with
128 additions
and
115 deletions
+128
-115
tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c
tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c
+9
-11
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
+38
-27
tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
+33
-31
tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
+15
-18
tools/power/cpupower/utils/idle_monitor/nhm_idle.c
tools/power/cpupower/utils/idle_monitor/nhm_idle.c
+17
-13
tools/power/cpupower/utils/idle_monitor/snb_idle.c
tools/power/cpupower/utils/idle_monitor/snb_idle.c
+16
-15
No files found.
tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c
View file @
b510b541
...
...
@@ -104,7 +104,7 @@ static int amd_fam14h_get_pci_info(struct cstate *state,
unsigned
int
*
enable_bit
,
unsigned
int
cpu
)
{
switch
(
state
->
id
)
{
switch
(
state
->
id
)
{
case
NON_PC0
:
*
enable_bit
=
PCI_NON_PC0_ENABLE_BIT
;
*
pci_offset
=
PCI_NON_PC0_OFFSET
;
...
...
@@ -177,7 +177,7 @@ static int amd_fam14h_disable(cstate_t *state, unsigned int cpu)
/* was the bit whether NBP1 got entered set? */
nbp1_entered
=
(
val
&
(
1
<<
PCI_NBP1_ACTIVE_BIT
))
|
(
val
&
(
1
<<
PCI_NBP1_ENTERED_BIT
));
dprint
(
"NBP1 was %sentered - 0x%x - enable_bit: "
"%d - pci_offset: 0x%x
\n
"
,
nbp1_entered
?
""
:
"not "
,
...
...
@@ -214,7 +214,7 @@ static int fam14h_get_count_percent(unsigned int id, double *percent,
unsigned
int
cpu
)
{
unsigned
long
diff
;
if
(
id
>=
AMD_FAM14H_STATE_NUM
)
return
-
1
;
/* residency count in 80ns -> divide through 12.5 to get us residency */
...
...
@@ -236,9 +236,8 @@ static int amd_fam14h_start(void)
int
num
,
cpu
;
clock_gettime
(
CLOCK_REALTIME
,
&
start_time
);
for
(
num
=
0
;
num
<
AMD_FAM14H_STATE_NUM
;
num
++
)
{
for
(
cpu
=
0
;
cpu
<
cpu_count
;
cpu
++
)
{
for
(
cpu
=
0
;
cpu
<
cpu_count
;
cpu
++
)
amd_fam14h_init
(
&
amd_fam14h_cstates
[
num
],
cpu
);
}
}
#ifdef DEBUG
clock_gettime
(
CLOCK_REALTIME
,
&
dbg_time
);
...
...
@@ -257,9 +256,8 @@ static int amd_fam14h_stop(void)
clock_gettime
(
CLOCK_REALTIME
,
&
end_time
);
for
(
num
=
0
;
num
<
AMD_FAM14H_STATE_NUM
;
num
++
)
{
for
(
cpu
=
0
;
cpu
<
cpu_count
;
cpu
++
)
{
for
(
cpu
=
0
;
cpu
<
cpu_count
;
cpu
++
)
amd_fam14h_disable
(
&
amd_fam14h_cstates
[
num
],
cpu
);
}
}
#ifdef DEBUG
clock_gettime
(
CLOCK_REALTIME
,
&
dbg_time
);
...
...
@@ -281,8 +279,8 @@ static int is_nbp1_capable(void)
return
val
&
(
1
<<
31
);
}
struct
cpuidle_monitor
*
amd_fam14h_register
(
void
)
{
struct
cpuidle_monitor
*
amd_fam14h_register
(
void
)
{
int
num
;
if
(
cpupower_cpu_info
.
vendor
!=
X86_VENDOR_AMD
)
...
...
@@ -299,9 +297,9 @@ struct cpuidle_monitor* amd_fam14h_register(void) {
/* We do not alloc for nbp1 machine wide counter */
for
(
num
=
0
;
num
<
AMD_FAM14H_STATE_NUM
-
1
;
num
++
)
{
previous_count
[
num
]
=
calloc
(
cpu_count
,
previous_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
current_count
[
num
]
=
calloc
(
cpu_count
,
current_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
}
...
...
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
View file @
b510b541
...
...
@@ -36,10 +36,10 @@ static int cpuidle_get_count_percent(unsigned int id, double *percent,
*
percent
=
0
.
0
;
else
*
percent
=
((
100
.
0
*
statediff
)
/
timediff
);
dprint
(
"%s: - timediff: %llu - statediff: %llu - percent: %f (%u)
\n
"
,
cpuidle_cstates
[
id
].
name
,
timediff
,
statediff
,
*
percent
,
cpu
);
return
0
;
}
...
...
@@ -55,7 +55,6 @@ static int cpuidle_start(void)
dprint
(
"CPU %d - State: %d - Val: %llu
\n
"
,
cpu
,
state
,
previous_count
[
cpu
][
state
]);
}
};
return
0
;
}
...
...
@@ -83,40 +82,51 @@ void fix_up_intel_idle_driver_name(char *tmp, int num)
{
/* fix up cpuidle name for intel idle driver */
if
(
!
strncmp
(
tmp
,
"NHM-"
,
4
))
{
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
break
;
case
2
:
strcpy
(
tmp
,
"C3"
);
case
2
:
strcpy
(
tmp
,
"C3"
);
break
;
case
3
:
strcpy
(
tmp
,
"C6"
);
case
3
:
strcpy
(
tmp
,
"C6"
);
break
;
}
}
else
if
(
!
strncmp
(
tmp
,
"SNB-"
,
4
))
{
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
break
;
case
2
:
strcpy
(
tmp
,
"C3"
);
case
2
:
strcpy
(
tmp
,
"C3"
);
break
;
case
3
:
strcpy
(
tmp
,
"C6"
);
case
3
:
strcpy
(
tmp
,
"C6"
);
break
;
case
4
:
strcpy
(
tmp
,
"C7"
);
case
4
:
strcpy
(
tmp
,
"C7"
);
break
;
}
}
else
if
(
!
strncmp
(
tmp
,
"ATM-"
,
4
))
{
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
switch
(
num
)
{
case
1
:
strcpy
(
tmp
,
"C1"
);
break
;
case
2
:
strcpy
(
tmp
,
"C2"
);
case
2
:
strcpy
(
tmp
,
"C2"
);
break
;
case
3
:
strcpy
(
tmp
,
"C4"
);
case
3
:
strcpy
(
tmp
,
"C4"
);
break
;
case
4
:
strcpy
(
tmp
,
"C6"
);
case
4
:
strcpy
(
tmp
,
"C6"
);
break
;
}
}
}
static
struct
cpuidle_monitor
*
cpuidle_register
(
void
)
static
struct
cpuidle_monitor
*
cpuidle_register
(
void
)
{
int
num
;
char
*
tmp
;
...
...
@@ -127,7 +137,7 @@ static struct cpuidle_monitor* cpuidle_register(void)
if
(
cpuidle_sysfs_monitor
.
hw_states_num
==
0
)
return
NULL
;
for
(
num
=
0
;
num
<
cpuidle_sysfs_monitor
.
hw_states_num
;
num
++
)
{
for
(
num
=
0
;
num
<
cpuidle_sysfs_monitor
.
hw_states_num
;
num
++
)
{
tmp
=
sysfs_get_idlestate_name
(
0
,
num
);
if
(
tmp
==
NULL
)
continue
;
...
...
@@ -144,17 +154,18 @@ static struct cpuidle_monitor* cpuidle_register(void)
cpuidle_cstates
[
num
].
range
=
RANGE_THREAD
;
cpuidle_cstates
[
num
].
id
=
num
;
cpuidle_cstates
[
num
].
get_count_percent
=
cpuidle_get_count_percent
;
};
cpuidle_cstates
[
num
].
get_count_percent
=
cpuidle_get_count_percent
;
};
/* Free this at program termination */
previous_count
=
malloc
(
sizeof
(
long
long
*
)
*
cpu_count
);
current_count
=
malloc
(
sizeof
(
long
long
*
)
*
cpu_count
);
previous_count
=
malloc
(
sizeof
(
long
long
*
)
*
cpu_count
);
current_count
=
malloc
(
sizeof
(
long
long
*
)
*
cpu_count
);
for
(
num
=
0
;
num
<
cpu_count
;
num
++
)
{
previous_count
[
num
]
=
malloc
(
sizeof
(
long
long
)
*
cpuidle_sysfs_monitor
.
hw_states_num
);
current_count
[
num
]
=
malloc
(
sizeof
(
long
long
)
*
cpuidle_sysfs_monitor
.
hw_states_num
);
previous_count
[
num
]
=
malloc
(
sizeof
(
long
long
)
*
cpuidle_sysfs_monitor
.
hw_states_num
);
current_count
[
num
]
=
malloc
(
sizeof
(
long
long
)
*
cpuidle_sysfs_monitor
.
hw_states_num
);
}
cpuidle_sysfs_monitor
.
name_len
=
strlen
(
cpuidle_sysfs_monitor
.
name
);
...
...
tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
View file @
b510b541
...
...
@@ -24,7 +24,7 @@
/* Define pointers to all monitors. */
#define DEF(x) & x ## _monitor ,
struct
cpuidle_monitor
*
all_monitors
[]
=
{
struct
cpuidle_monitor
*
all_monitors
[]
=
{
#include "idle_monitors.def"
0
};
...
...
@@ -76,19 +76,19 @@ void print_n_spaces(int n)
int
x
;
for
(
x
=
0
;
x
<
n
;
x
++
)
printf
(
" "
);
}
}
/* size of s must be at least n + 1 */
int
fill_string_with_spaces
(
char
*
s
,
int
n
)
{
int
len
=
strlen
(
s
);
int
len
=
strlen
(
s
);
if
(
len
>
n
)
return
-
1
;
for
(;
len
<
n
;
len
++
)
s
[
len
]
=
' '
;
s
[
len
]
=
'\0'
;
for
(;
len
<
n
;
len
++
)
s
[
len
]
=
' '
;
s
[
len
]
=
'\0'
;
return
0
;
}
}
void
print_header
(
int
topology_depth
)
{
...
...
@@ -107,7 +107,7 @@ void print_header(int topology_depth)
-
1
;
if
(
mon
!=
0
)
{
printf
(
"|| "
);
need_len
--
;
need_len
--
;
}
sprintf
(
buf
,
"%s"
,
monitors
[
mon
]
->
name
);
fill_string_with_spaces
(
buf
,
need_len
);
...
...
@@ -169,26 +169,24 @@ void print_results(int topology_depth, int cpu)
if
(
s
.
get_count_percent
)
{
ret
=
s
.
get_count_percent
(
s
.
id
,
&
percent
,
cpu_top
.
core_info
[
cpu
].
cpu
);
if
(
ret
)
{
if
(
ret
)
printf
(
"******"
);
}
else
if
(
percent
>=
100
.
0
)
else
if
(
percent
>=
100
.
0
)
printf
(
"%6.1f"
,
percent
);
else
printf
(
"%6.2f"
,
percent
);
}
else
if
(
s
.
get_count
)
{
}
else
if
(
s
.
get_count
)
{
ret
=
s
.
get_count
(
s
.
id
,
&
result
,
cpu_top
.
core_info
[
cpu
].
cpu
);
if
(
ret
)
{
if
(
ret
)
printf
(
"******"
);
}
else
else
printf
(
"%6llu"
,
result
);
}
else
{
}
else
{
printf
(
_
(
"Monitor %s, Counter %s has no count "
"function. Implementation error
\n
"
),
monitors
[
mon
]
->
name
,
s
.
name
);
exit
(
EXIT_FAILURE
);
exit
(
EXIT_FAILURE
);
}
}
}
...
...
@@ -211,7 +209,7 @@ void print_results(int topology_depth, int cpu)
* Monitors get sorted in the same order the user passes them
*/
static
void
parse_monitor_param
(
char
*
param
)
static
void
parse_monitor_param
(
char
*
param
)
{
unsigned
int
num
;
int
mon
,
hits
=
0
;
...
...
@@ -219,7 +217,7 @@ static void parse_monitor_param(char* param)
struct
cpuidle_monitor
*
tmp_mons
[
MONITORS_MAX
];
for
(
mon
=
0
;
mon
<
MONITORS_MAX
;
mon
++
,
tmp
=
NULL
)
{
for
(
mon
=
0
;
mon
<
MONITORS_MAX
;
mon
++
,
tmp
=
NULL
)
{
token
=
strtok
(
tmp
,
","
);
if
(
token
==
NULL
)
break
;
...
...
@@ -235,7 +233,7 @@ static void parse_monitor_param(char* param)
tmp_mons
[
hits
]
=
monitors
[
num
];
hits
++
;
}
}
}
}
if
(
hits
==
0
)
{
printf
(
_
(
"No matching monitor found in %s, "
...
...
@@ -244,20 +242,23 @@ static void parse_monitor_param(char* param)
exit
(
EXIT_FAILURE
);
}
/* Override detected/registerd monitors array with requested one */
memcpy
(
monitors
,
tmp_mons
,
sizeof
(
struct
cpuidle_monitor
*
)
*
MONITORS_MAX
);
memcpy
(
monitors
,
tmp_mons
,
sizeof
(
struct
cpuidle_monitor
*
)
*
MONITORS_MAX
);
avail_monitors
=
hits
;
}
void
list_monitors
(
void
)
{
void
list_monitors
(
void
)
{
unsigned
int
mon
;
int
state
;
cstate_t
s
;
for
(
mon
=
0
;
mon
<
avail_monitors
;
mon
++
)
{
printf
(
_
(
"Monitor
\"
%s
\"
(%d states) - Might overflow after %u "
"s
\n
"
),
monitors
[
mon
]
->
name
,
monitors
[
mon
]
->
hw_states_num
,
monitors
[
mon
]
->
overflow_s
);
"s
\n
"
),
monitors
[
mon
]
->
name
,
monitors
[
mon
]
->
hw_states_num
,
monitors
[
mon
]
->
overflow_s
);
for
(
state
=
0
;
state
<
monitors
[
mon
]
->
hw_states_num
;
state
++
)
{
s
=
monitors
[
mon
]
->
hw_states
[
state
];
/*
...
...
@@ -308,7 +309,8 @@ int fork_it(char **argv)
timediff
=
timespec_diff_us
(
start
,
end
);
if
(
WIFEXITED
(
status
))
printf
(
_
(
"%s took %.5f seconds and exited with status %d
\n
"
),
argv
[
0
],
timediff
/
(
1000
.
0
*
1000
),
WEXITSTATUS
(
status
));
argv
[
0
],
timediff
/
(
1000
.
0
*
1000
),
WEXITSTATUS
(
status
));
return
0
;
}
...
...
@@ -322,9 +324,9 @@ int do_interval_measure(int i)
monitors
[
num
]
->
start
();
}
sleep
(
i
);
for
(
num
=
0
;
num
<
avail_monitors
;
num
++
)
{
for
(
num
=
0
;
num
<
avail_monitors
;
num
++
)
monitors
[
num
]
->
stop
();
}
return
0
;
}
...
...
@@ -384,7 +386,7 @@ int cmd_monitor(int argc, char **argv)
}
dprint
(
"System has up to %d CPU cores
\n
"
,
cpu_count
);
for
(
num
=
0
;
all_monitors
[
num
];
num
++
)
{
dprint
(
"Try to register: %s
\n
"
,
all_monitors
[
num
]
->
name
);
test_mon
=
all_monitors
[
num
]
->
do_register
();
...
...
@@ -438,9 +440,9 @@ int cmd_monitor(int argc, char **argv)
print_results
(
1
,
cpu
);
}
for
(
num
=
0
;
num
<
avail_monitors
;
num
++
)
{
for
(
num
=
0
;
num
<
avail_monitors
;
num
++
)
monitors
[
num
]
->
unregister
();
}
cpu_topology_release
(
cpu_top
);
return
0
;
}
tools/power/cpupower/utils/idle_monitor/mperf_monitor.c
View file @
b510b541
...
...
@@ -79,7 +79,7 @@ static int mperf_init_stats(unsigned int cpu)
ret
|=
read_msr
(
cpu
,
MSR_MPERF
,
&
val
);
mperf_previous_count
[
cpu
]
=
val
;
is_valid
[
cpu
]
=
!
ret
;
return
0
;
}
...
...
@@ -93,7 +93,7 @@ static int mperf_measure_stats(unsigned int cpu)
ret
|=
read_msr
(
cpu
,
MSR_MPERF
,
&
val
);
mperf_current_count
[
cpu
]
=
val
;
is_valid
[
cpu
]
=
!
ret
;
return
0
;
}
...
...
@@ -145,14 +145,14 @@ static int mperf_get_count_percent(unsigned int id, double *percent,
if
(
id
==
Cx
)
*
percent
=
100
.
0
-
*
percent
;
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
mperf_cstates
[
id
].
name
,
mperf_diff
,
aperf_diff
,
cpu
);
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
mperf_cstates
[
id
].
name
,
mperf_diff
,
aperf_diff
,
cpu
);
dprint
(
"%s: %f
\n
"
,
mperf_cstates
[
id
].
name
,
*
percent
);
return
0
;
}
static
int
mperf_get_count_freq
(
unsigned
int
id
,
unsigned
long
long
*
count
,
unsigned
int
cpu
)
unsigned
int
cpu
)
{
unsigned
long
long
aperf_diff
,
mperf_diff
;
...
...
@@ -206,8 +206,8 @@ static int mperf_stop(void)
struct
cpuidle_monitor
mperf_monitor
;
struct
cpuidle_monitor
*
mperf_register
(
void
)
{
struct
cpuidle_monitor
*
mperf_register
(
void
)
{
unsigned
long
min
;
if
(
!
(
cpupower_cpu_info
.
caps
&
CPUPOWER_CAP_APERF
))
...
...
@@ -221,21 +221,18 @@ struct cpuidle_monitor* mperf_register(void) {
}
/* Free this at program termination */
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
mperf_previous_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
aperf_previous_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
mperf_current_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
aperf_current_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
mperf_previous_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
aperf_previous_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
mperf_current_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
aperf_current_count
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
mperf_monitor
.
name_len
=
strlen
(
mperf_monitor
.
name
);
return
&
mperf_monitor
;
}
void
mperf_unregister
(
void
)
{
void
mperf_unregister
(
void
)
{
free
(
mperf_previous_count
);
free
(
aperf_previous_count
);
free
(
mperf_current_count
);
...
...
tools/power/cpupower/utils/idle_monitor/nhm_idle.c
View file @
b510b541
...
...
@@ -69,11 +69,12 @@ static unsigned long long *current_count[NHM_CSTATE_COUNT];
/* valid flag for all CPUs. If a MSR read failed it will be zero */
static
int
*
is_valid
;
static
int
nhm_get_count
(
enum
intel_nhm_id
id
,
unsigned
long
long
*
val
,
unsigned
int
cpu
)
static
int
nhm_get_count
(
enum
intel_nhm_id
id
,
unsigned
long
long
*
val
,
unsigned
int
cpu
)
{
int
msr
;
switch
(
id
)
{
switch
(
id
)
{
case
C3
:
msr
=
MSR_CORE_C3_RESIDENCY
;
break
;
...
...
@@ -106,12 +107,13 @@ static int nhm_get_count_percent(unsigned int id, double *percent,
if
(
!
is_valid
[
cpu
])
return
-
1
;
*
percent
=
(
100
.
0
*
(
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
]))
/
*
percent
=
(
100
.
0
*
(
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
]))
/
(
tsc_at_measure_end
-
tsc_at_measure_start
);
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
nhm_cstates
[
id
].
name
,
previous_count
[
id
][
cpu
],
current
_count
[
id
][
cpu
],
cpu
);
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
nhm_cstates
[
id
].
name
,
previous
_count
[
id
][
cpu
],
current_count
[
id
][
cpu
],
cpu
);
dprint
(
"%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)
\n
"
,
nhm_cstates
[
id
].
name
,
...
...
@@ -162,7 +164,8 @@ static int nhm_stop(void)
struct
cpuidle_monitor
intel_nhm_monitor
;
struct
cpuidle_monitor
*
intel_nhm_register
(
void
)
{
struct
cpuidle_monitor
*
intel_nhm_register
(
void
)
{
int
num
;
if
(
cpupower_cpu_info
.
vendor
!=
X86_VENDOR_INTEL
)
...
...
@@ -175,19 +178,20 @@ struct cpuidle_monitor* intel_nhm_register(void) {
return
NULL
;
/* Free this at program termination */
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
for
(
num
=
0
;
num
<
NHM_CSTATE_COUNT
;
num
++
)
{
previous_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
current_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
previous_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
current_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
}
intel_nhm_monitor
.
name_len
=
strlen
(
intel_nhm_monitor
.
name
);
return
&
intel_nhm_monitor
;
}
void
intel_nhm_unregister
(
void
)
{
void
intel_nhm_unregister
(
void
)
{
int
num
;
for
(
num
=
0
;
num
<
NHM_CSTATE_COUNT
;
num
++
)
{
...
...
tools/power/cpupower/utils/idle_monitor/snb_idle.c
View file @
b510b541
...
...
@@ -58,11 +58,12 @@ static unsigned long long *current_count[SNB_CSTATE_COUNT];
/* valid flag for all CPUs. If a MSR read failed it will be zero */
static
int
*
is_valid
;
static
int
snb_get_count
(
enum
intel_snb_id
id
,
unsigned
long
long
*
val
,
unsigned
int
cpu
)
static
int
snb_get_count
(
enum
intel_snb_id
id
,
unsigned
long
long
*
val
,
unsigned
int
cpu
)
{
int
msr
;
switch
(
id
)
{
switch
(
id
)
{
case
C7
:
msr
=
MSR_CORE_C7_RESIDENCY
;
break
;
...
...
@@ -91,18 +92,18 @@ static int snb_get_count_percent(unsigned int id, double *percent,
if
(
!
is_valid
[
cpu
])
return
-
1
;
*
percent
=
(
100
.
0
*
(
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
]))
/
*
percent
=
(
100
.
0
*
(
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
]))
/
(
tsc_at_measure_end
-
tsc_at_measure_start
);
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
snb_cstates
[
id
].
name
,
previous_count
[
id
][
cpu
],
current
_count
[
id
][
cpu
],
cpu
);
dprint
(
"%s: previous: %llu - current: %llu - (%u)
\n
"
,
snb_cstates
[
id
].
name
,
previous
_count
[
id
][
cpu
],
current_count
[
id
][
cpu
],
cpu
);
dprint
(
"%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)
\n
"
,
snb_cstates
[
id
].
name
,
(
unsigned
long
long
)
tsc_at_measure_end
-
tsc_at_measure_start
,
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
],
current_count
[
id
][
cpu
]
-
previous_count
[
id
][
cpu
],
*
percent
,
cpu
);
return
0
;
...
...
@@ -141,8 +142,8 @@ static int snb_stop(void)
struct
cpuidle_monitor
intel_snb_monitor
;
static
struct
cpuidle_monitor
*
snb_register
(
void
)
{
static
struct
cpuidle_monitor
*
snb_register
(
void
)
{
int
num
;
if
(
cpupower_cpu_info
.
vendor
!=
X86_VENDOR_INTEL
...
...
@@ -153,12 +154,12 @@ static struct cpuidle_monitor* snb_register(void) {
&&
cpupower_cpu_info
.
model
!=
0x2D
)
return
NULL
;
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
is_valid
=
calloc
(
cpu_count
,
sizeof
(
int
));
for
(
num
=
0
;
num
<
SNB_CSTATE_COUNT
;
num
++
)
{
previous_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
current_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
previous_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
current_count
[
num
]
=
calloc
(
cpu_count
,
sizeof
(
unsigned
long
long
));
}
intel_snb_monitor
.
name_len
=
strlen
(
intel_snb_monitor
.
name
);
return
&
intel_snb_monitor
;
...
...
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