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7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11

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Add CriticalPriority == MaxPriority+1 and enable scheduling class as well as thread priority to change on Solaris.

Reviewed-by: dholmes, dcubed
This commit is contained in:
Paul Hohensee 2012-01-26 20:06:06 -05:00
parent 7ece654913
commit 09e21afaaa
9 changed files with 289 additions and 140 deletions
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35
hotspot/src/os/bsd/vm/os_bsd.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -3589,26 +3589,28 @@ void os::loop_breaker(int attempts) {
// It is only used when ThreadPriorityPolicy=1 and requires root privilege.
#if defined(_ALLBSD_SOURCE) && !defined(__APPLE__)
int os::java_to_os_priority[MaxPriority + 1] = {
int os::java_to_os_priority[CriticalPriority + 1] = {
19, // 0 Entry should never be used
0, // 1 MinPriority
3, // 2
6, // 3
10, // 4
15, // 5 NormPriority
18, // 6
10, // 4
15, // 5 NormPriority
18, // 6
21, // 7
25, // 8
28, // 9 NearMaxPriority
21, // 7
25, // 8
28, // 9 NearMaxPriority
31 // 10 MaxPriority
31, // 10 MaxPriority
31 // 11 CriticalPriority
};
#elif defined(__APPLE__)
/* Using Mach high-level priority assignments */
int os::java_to_os_priority[MaxPriority + 1] = {
int os::java_to_os_priority[CriticalPriority + 1] = {
0, // 0 Entry should never be used (MINPRI_USER)
27, // 1 MinPriority
@ -3623,10 +3625,12 @@ int os::java_to_os_priority[MaxPriority + 1] = {
34, // 8
35, // 9 NearMaxPriority
36 // 10 MaxPriority
36, // 10 MaxPriority
36 // 11 CriticalPriority
};
#else
int os::java_to_os_priority[MaxPriority + 1] = {
int os::java_to_os_priority[CriticalPriority + 1] = {
19, // 0 Entry should never be used
4, // 1 MinPriority
@ -3641,7 +3645,9 @@ int os::java_to_os_priority[MaxPriority + 1] = {
-3, // 8
-4, // 9 NearMaxPriority
-5 // 10 MaxPriority
-5, // 10 MaxPriority
-5 // 11 CriticalPriority
};
#endif
@ -3657,6 +3663,9 @@ static int prio_init() {
ThreadPriorityPolicy = 0;
}
}
if (UseCriticalJavaThreadPriority) {
os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority];
}
return 0;
}