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nexedi
tsn-measures
Commits
c7d63de1
Commit
c7d63de1
authored
May 01, 2020
by
Joanne Hugé
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Add CPU affinity
parent
059bcc69
Changes
1
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1 changed file
with
8 additions
and
2 deletions
+8
-2
clock-res/src/clockres.c
clock-res/src/clockres.c
+8
-2
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clock-res/src/clockres.c
View file @
c7d63de1
...
...
@@ -46,17 +46,24 @@ static inline uint64_t min(uint64_t a, uint64_t b);
static
void
*
timerthread
(
void
*
p
)
{
struct
timespec
previous
,
current
;
struct
sched_param
priority
;
cpu_set_t
mask
;
uint64_t
diff
;
char
time_measured_string
[
255
];
thread_param_t
*
param
=
(
thread_param_t
*
)
p
;
thread_stat_t
*
stat
=
&
param
->
stat
;
// Set thread priority
priority
.
sched_priority
=
param
->
priority
;
if
(
sched_setscheduler
(
0
,
SCHED_FIFO
,
&
priority
))
error
(
EXIT_FAILURE
,
errno
,
"Couldn't set priority"
);
// Set thread CPU affinity
CPU_ZERO
(
&
mask
);
CPU_SET
(
1
,
&
mask
);
if
(
pthread_setaffinity_np
(
0
,
sizeof
(
mask
),
&
mask
)
==
-
1
)
printf
(
"Could not set CPU affinity to CPU #1
\n
"
);
stat
->
max_res
=
0
;
stat
->
min_res
=
UINT64_MAX
;
...
...
@@ -71,7 +78,6 @@ static void *timerthread(void *p) {
diff
=
calcdiff_ns
(
current
,
previous
);
if
(
param
->
enable_tracing
&&
(
diff
>
param
->
latency_threshold
))
{
sprintf
(
time_measured_string
,
"Diff measured: %"
PRIu64
"
\n
"
,
diff
);
tracemark
(
time_measured_string
);
tracing
(
0
);
...
...
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