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VIDEO: Added priority boost to thread performing SDL processing and updates

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Reworked all priority adjustment code to leverage a new
sim_os_set_thread_priority API which is coded to use pthreads or OS
priority adjustment APIs as necessary.
This commit is contained in:
Mark Pizzolato
2016-06-11 09:52:33 -07:00
parent 3743d3d68a
commit a24aba69ae
9 changed files with 114 additions and 63 deletions
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23
sim_tmxr.c
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@@ -2960,8 +2960,6 @@ t_bool sim_tmxr_poll_running = FALSE;
static void *
_tmxr_poll(void *arg)
{
int sched_policy;
struct sched_param sched_priority;
struct timeval timeout;
int timeout_usec;
DEVICE *dptr = tmxr_open_devices[0]->dptr;
@@ -2973,9 +2971,7 @@ int wait_count = 0;
/* Boost Priority for this I/O thread vs the CPU instruction execution
thread which, in general, won't be readily yielding the processor when
this thread needs to run */
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
sim_os_set_thread_priority (PRIORITY_ABOVE_NORMAL);
sim_debug (TMXR_DBG_ASY, dptr, "_tmxr_poll() - starting\n");
@@ -3180,8 +3176,6 @@ return NULL;
static void *
_tmxr_serial_poll(void *arg)
{
int sched_policy;
struct sched_param sched_priority;
int timeout_usec;
DEVICE *dptr = tmxr_open_devices[0]->dptr;
UNIT **units = NULL;
@@ -3192,9 +3186,7 @@ int wait_count = 0;
/* Boost Priority for this I/O thread vs the CPU instruction execution
thread which, in general, won't be readily yielding the processor when
this thread needs to run */
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
sim_os_set_thread_priority (PRIORITY_ABOVE_NORMAL);
sim_debug (TMXR_DBG_ASY, dptr, "_tmxr_serial_poll() - starting\n");
@@ -3316,8 +3308,6 @@ static void *
_tmxr_serial_line_poll(void *arg)
{
TMLN *lp = (TMLN *)arg;
int sched_policy;
struct sched_param sched_priority;
DEVICE *dptr = tmxr_open_devices[0]->dptr;
UNIT *uptr = (lp->uptr ? lp->uptr : lp->mp->uptr);
DEVICE *d = find_dev_from_unit(uptr);
@@ -3326,9 +3316,7 @@ int wait_count = 0;
/* Boost Priority for this I/O thread vs the CPU instruction execution
thread which, in general, won't be readily yielding the processor when
this thread needs to run */
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
sim_os_set_thread_priority (PRIORITY_ABOVE_NORMAL);
sim_debug (TMXR_DBG_ASY, dptr, "_tmxr_serial_line_poll() - starting\n");
@@ -3398,8 +3386,6 @@ return NULL;
static void *
_tmxr_serial_poll(void *arg)
{
int sched_policy;
struct sched_param sched_priority;
int timeout_usec;
DEVICE *dptr = tmxr_open_devices[0]->dptr;
TMLN **lines = NULL;
@@ -3408,9 +3394,6 @@ pthread_t *threads = NULL;
/* Boost Priority for this I/O thread vs the CPU instruction execution
thread which, in general, won't be readily yielding the processor when
this thread needs to run */
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
sim_debug (TMXR_DBG_ASY, dptr, "_tmxr_serial_poll() - starting\n");