The hard-coded thread priority for Windows threads in eal
is REALTIME_PRIORITY_CLASS/THREAD_PRIORITY_TIME_CRITICAL.
This results in issues with DPDK threads causing OS thread starvation
and eventually a bugcheck.
The fix reduce the thread priority to
NORMAL_PRIORITY_CLASS/THREAD_PRIORITY_NORMAL.
Bugzilla ID: 600
Fixes: 53ffd9f080f ("eal/windows: add minimum viable code")
Cc: [email protected]
Reported-by: Odi Assli <[email protected]>
Signed-off-by: Tal Shnaiderman <[email protected]>
---
lib/librte_eal/windows/eal_thread.c | 4 ++--
lib/librte_eal/windows/include/pthread.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/librte_eal/windows/eal_thread.c
b/lib/librte_eal/windows/eal_thread.c
index 908e726d16..9c3f6d69fd 100644
--- a/lib/librte_eal/windows/eal_thread.c
+++ b/lib/librte_eal/windows/eal_thread.c
@@ -134,8 +134,8 @@ eal_thread_create(pthread_t *thread)
if (!th)
return -1;
- SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);
- SetThreadPriority(th, THREAD_PRIORITY_TIME_CRITICAL);
+ SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
+ SetThreadPriority(th, THREAD_PRIORITY_NORMAL);
return 0;
}
diff --git a/lib/librte_eal/windows/include/pthread.h
b/lib/librte_eal/windows/include/pthread.h
index fb11a07ce6..9aeab1fa70 100644
--- a/lib/librte_eal/windows/include/pthread.h
+++ b/lib/librte_eal/windows/include/pthread.h
@@ -137,8 +137,8 @@ pthread_create(void *threadid, const void *threadattr, void
*threadfunc,
hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)threadfunc,
args, 0, (LPDWORD)threadid);
if (hThread) {
- SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);
- SetThreadPriority(hThread, THREAD_PRIORITY_TIME_CRITICAL);
+ SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
+ SetThreadPriority(hThread, THREAD_PRIORITY_NORMAL);
}
return ((hThread != NULL) ? 0 : E_FAIL);
}
--
2.16.1.windows.4
