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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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12
sim_ether.c
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@@ -1689,8 +1689,6 @@ _eth_reader(void *arg)
{
ETH_DEV* volatile dev = (ETH_DEV*)arg;
int status = 0;
int sched_policy;
struct sched_param sched_priority;
int sel_ret = 0;
int do_select = 0;
SOCKET select_fd = 0;
@@ -1721,9 +1719,7 @@ sim_debug(dev->dbit, dev->dptr, "Reader Thread Starting\n");
/* 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);
while (dev->handle) {
#if defined (_WIN32)
@@ -1880,15 +1876,11 @@ _eth_writer(void *arg)
{
ETH_DEV* volatile dev = (ETH_DEV*)arg;
ETH_WRITE_REQUEST *request;
int sched_policy;
struct sched_param sched_priority;
/* 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(dev->dbit, dev->dptr, "Writer Thread Starting\n");