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8164683: Solaris: JVM abuses thread preemption control

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Complete removal of preemption control and command line arguments (were deprecated in 11).

Reviewed-by: hseigel, pchilanomate, dholmes
This commit is contained in:
Coleen Phillimore 2018-08-10 09:36:01 -04:00
parent 83b2fb5b0d
commit 647c7d5344
14 changed files with 12 additions and 92 deletions
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10
src/hotspot/os/solaris/os_solaris.cpp
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@ -78,7 +78,6 @@
# include <link.h>
# include <poll.h>
# include <pthread.h>
# include <schedctl.h>
# include <setjmp.h>
# include <signal.h>
# include <stdio.h>
@ -742,7 +741,6 @@ extern "C" void* thread_native_entry(void* thread_addr) {
OSThread* osthr = thread->osthread();
osthr->set_lwp_id(_lwp_self()); // Store lwp in case we are bound
thread->_schedctl = (void *) schedctl_init();
log_info(os, thread)("Thread is alive (tid: " UINTX_FORMAT ").",
os::current_thread_id());
@ -812,7 +810,6 @@ static OSThread* create_os_thread(Thread* thread, thread_t thread_id) {
// Store info on the Solaris thread into the OSThread
osthread->set_thread_id(thread_id);
osthread->set_lwp_id(_lwp_self());
thread->_schedctl = (void *) schedctl_init();
if (UseNUMA) {
int lgrp_id = os::numa_get_group_id();
@ -3407,13 +3404,6 @@ OSReturn os::get_native_priority(const Thread* const thread,
return OS_OK;
}
// Hint to the underlying OS that a task switch would not be good.
// Void return because it's a hint and can fail.
void os::hint_no_preempt() {
schedctl_start(schedctl_init());
}
////////////////////////////////////////////////////////////////////////////////
// suspend/resume support