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Enable CPU Affnity for UE threads

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This commit is contained in:
Rohit Gupta
2016-04-13 11:00:51 +02:00
parent 443d7a835a
commit a5eb08b67b
1 changed files with 182 additions and 6 deletions
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targets/RT/USER/lte-ue.c
+182 -6
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@@ -53,6 +53,7 @@
#include <execinfo.h>
#include <getopt.h>
#include <syscall.h>
#include <sys/sysinfo.h>
#include "rt_wrapper.h"
#include "assertions.h"
@@ -211,6 +212,69 @@ static void *UE_thread_synch(void *arg)
printf("UE_thread_sync in with PHY_vars_UE %p\n",arg);
printf("waiting for sync (UE_thread_synch) \n");
#ifndef LOWLATENCY
int policy, s, j;
struct sched_param sparam;
char cpu_affinity[1024];
cpu_set_t cpuset;
/* Set affinity mask to include CPUs 1 to MAX_CPUS */
/* CPU 0 is reserved for UHD threads */
CPU_ZERO(&cpuset);
for (j = 1; j < get_nprocs(); j++)
CPU_SET(j, &cpuset);
s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_setaffinity_np");
exit_fun("Error setting processor affinity");
}
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_getaffinity_np");
exit_fun("Error getting processor affinity ");
}
memset(cpu_affinity, 0 , sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf(temp, " CPU_%d ", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam : ");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][UE] Started UE synch thread on CPU %d TID %ld , sched_policy = %s, priority = %d, CPU Affinity = %s \n", (int)sched_getcpu(), gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
(int) sparam.sched_priority, cpu_affinity);
#endif
pthread_mutex_lock(&sync_mutex);
printf("Locked sync_mutex, waiting (UE_sync_thread)\n");
@@ -652,9 +716,65 @@ static void *UE_thread_tx(void *arg)
}
#else
struct sched_param sp;
sp.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
pthread_setschedparam(pthread_self(),SCHED_FIFO,&sp);
int policy, s, j;
struct sched_param sparam;
char cpu_affinity[1024];
cpu_set_t cpuset;
/* Set affinity mask to include CPUs 1 to MAX_CPUS */
/* CPU 0 is reserved for UHD threads */
CPU_ZERO(&cpuset);
for (j = 1; j < get_nprocs(); j++)
CPU_SET(j, &cpuset);
s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_setaffinity_np");
exit_fun("Error setting processor affinity");
}
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_getaffinity_np");
exit_fun("Error getting processor affinity ");
}
memset(cpu_affinity, 0 , sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf(temp, " CPU_%d ", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam : ");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][UE] Started UE thread TX on CPU %d TID %ld , sched_policy = %s, priority = %d, CPU Affinity = %s \n", (int)sched_getcpu(), gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
(int) sparam.sched_priority, cpu_affinity);
#endif
#endif
@@ -807,9 +927,65 @@ static void *UE_thread_rx(void *arg)
}
#else
struct sched_param sp;
sp.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
pthread_setschedparam(pthread_self(),SCHED_FIFO,&sp);
int policy, s, j;
struct sched_param sparam;
char cpu_affinity[1024];
cpu_set_t cpuset;
/* Set affinity mask to include CPUs 1 to MAX_CPUS */
/* CPU 0 is reserved for UHD threads */
CPU_ZERO(&cpuset);
for (j = 1; j < get_nprocs(); j++)
CPU_SET(j, &cpuset);
s = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_setaffinity_np");
exit_fun("Error setting processor affinity");
}
/* Check the actual affinity mask assigned to the thread */
s = pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
if (s != 0)
{
perror( "pthread_getaffinity_np");
exit_fun("Error getting processor affinity ");
}
memset(cpu_affinity, 0 , sizeof(cpu_affinity));
for (j = 0; j < CPU_SETSIZE; j++)
if (CPU_ISSET(j, &cpuset))
{
char temp[1024];
sprintf(temp, " CPU_%d ", j);
strcat(cpu_affinity, temp);
}
memset(&sparam, 0 , sizeof (sparam));
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO)-1;
policy = SCHED_FIFO ;
s = pthread_setschedparam(pthread_self(), policy, &sparam);
if (s != 0)
{
perror("pthread_setschedparam : ");
exit_fun("Error setting thread priority");
}
s = pthread_getschedparam(pthread_self(), &policy, &sparam);
if (s != 0)
{
perror("pthread_getschedparam : ");
exit_fun("Error getting thread priority");
}
LOG_I( HW, "[SCHED][UE] Started UE RX thread on CPU %d TID %ld , sched_policy = %s, priority = %d, CPU Affinity = %s \n", (int)sched_getcpu(), gettid(),
(policy == SCHED_FIFO) ? "SCHED_FIFO" :
(policy == SCHED_RR) ? "SCHED_RR" :
(policy == SCHED_OTHER) ? "SCHED_OTHER" :
"???",
(int) sparam.sched_priority, cpu_affinity);
#endif
#endif